From f77a251158be892890d67229015d08fdd6fc581c Mon Sep 17 00:00:00 2001 From: Algis Dumbris Date: Fri, 4 Sep 2026 17:48:25 +0300 Subject: [PATCH 1/5] fix(storage): bound the tool-call history and stop erasing configured zeros MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Closes the other half of the 940MB config.db in #1173. #1176 — the per-server server__tool_calls buckets held ~432MB of that 940MB and were unbounded in every direction: RecordToolCall did CreateBucketIfNotExists + Put with no size cap, no count cap, no age prune and no eviction, and ToolCallRecord.Response is a bare interface{} holding the whole upstream CallToolResult. Nothing ever deleted a bucket either — CleanupStaleServerData exists but has no caller — so a server removed from the config left its entire call history behind forever. Bound it at the single write seam, so every producer is covered rather than the ones a caller remembered to cap: - a per-record cap on the marshalled response AND arguments. Over the cap the field becomes {truncated, original_bytes, preview, note} and the record carries response_truncated + response_bytes. It stays a JSON OBJECT on purpose: contracts.ToolCallRecord.Response is a documented payload on four OAS endpoints and httpapi.maskToolCallRecord walks it as structured JSON, so retyping it to a string would be a breaking API change. - eviction of the oldest records past a per-server count, in the same transaction as the write, so the bucket can never exceed the cap even briefly. The walk goes backwards from the newest key and stops at the cap, so its cost is bounded by the cap rather than the bucket size; Stats().KeyN is deliberately unused because inside the write transaction it does not count the Put that just happened. - bucket deletion on server removal, and an orphan sweep beside the existing PruneOrphanToolApprovals. The sweep takes server NAMES, as its sibling does, but these buckets are keyed by server IDENTITY — the SHA-256 GenerateServerID computes from a server's attributes — so it resolves one to the other through server_identities. A live run proved this is not theoretical: the first version compared bucket keys against names, which marks every live history an orphan, and it deleted a real bucket on restart. The unit tests missed it because they passed the name AS the ServerID; they now register real identities and assert the id is not the name. An empty identity store aborts the sweep — that state means "not populated yet", not "every server is gone". #1175 — three config fields carried omitempty on a numeric type while 0 was a documented meaningful value, so SaveConfig's json.MarshalIndent deleted an operator's explicit 0 and the field reverted to its default on the next write: max_result_size_chars ("Set to 0 to disable"), activity_max_size_mb ("0=disabled") and observability.tracing.sample_rate. All three become tri-state pointers with Effective…() readers. Dropping omitempty from the int is not equivalent — that materialises an absent key as an explicit 0 and turns the feature off for everyone who never set it. The defaults live in the readers, not only in DefaultConfig(), because two REST write paths decode a client document into a ZERO-valued config.Config (handlePatchConfig's `var merged config.Config`, UnmaskLiveConfigDocument's `&config.Config{}`) and never see the constructor. One trap the conversion had to clear: runtime.New gated SetMaxResponseSize behind `if … || cfg.ActivityMaxSizeMB >= 0`, a clause that is trivially true for a plain int and was the only reason the 64KB activity cap from #1174 ran at all. A naive pointer rewrite would have silently disabled it for every config that omits the key, and the existing default-path test would not have caught it because it constructs ActivityService directly. The per-record caps are now applied unconditionally, outside the retention guard where they never belonged. A reflection guard test walks the whole Config tree and fails on any numeric field with omitempty that is not on an allowlist with a stated reason. It found 14 more; each was checked against its doc comment or read site and every one genuinely treats 0 and absent as the same value. mcpproxy db compact / db stats — the caps bound future growth, but BBolt never returns freed pages to the OS, so an already-large config.db stays large. Offline compaction via bbolt.Compact (already pinned, no new dependency) with the atomic temp-file+rename recipe from config/loader.go, and db stats to say whether it is worth running. A locked database fails fast with exit 3 and a remediation line rather than retrying. The output is explicit that the default run frees no disk: the retained config.db.bak holds the original inode, so "reclaimed" describes the file and the filesystem gets nothing back until the backup is deleted. That matters most to the user who ran out of disk in the first place. Verified on a real instance (isolated port/data-dir/config, stdio upstream): a 300KB response stored as a 2.2KB truncated object with response_bytes=300065; a 300KB argument likewise; 8 calls against a cap of 5 leaving exactly 5 records; history surviving a restart (3 before, 3 after — 5 before / 0 after with the identity bug); and compaction taking 4.0MB to 2.0MB with every record, the upstream server and its tools intact afterwards. Closes #1175, closes #1176 Related #1173 --- cmd/mcpproxy/db_cmd.go | 565 ++++++++++++++++++ cmd/mcpproxy/db_cmd_test.go | 360 +++++++++++ cmd/mcpproxy/main.go | 1 + docs/cli/db-commands.md | 182 ++++++ docs/features/activity-log.md | 22 +- internal/config/config.go | 84 ++- internal/config/effective_bounds.go | 49 ++ internal/config/observability_test.go | 12 +- .../config/zero_value_preservation_test.go | 226 +++++++ internal/contracts/types.go | 9 + internal/runtime/lifecycle.go | 11 + internal/runtime/runtime.go | 194 +++--- internal/server/mcp.go | 2 +- internal/server/observability_config_test.go | 5 +- internal/server/server.go | 5 +- internal/storage/manager.go | 44 +- internal/storage/server_identity.go | 8 + internal/storage/tool_call_bounds.go | 357 +++++++++++ internal/storage/tool_call_bounds_test.go | 278 +++++++++ oas/docs.go | 2 +- oas/swagger.yaml | 43 +- website/sidebars.js | 1 + 22 files changed, 2320 insertions(+), 140 deletions(-) create mode 100644 cmd/mcpproxy/db_cmd.go create mode 100644 cmd/mcpproxy/db_cmd_test.go create mode 100644 docs/cli/db-commands.md create mode 100644 internal/config/effective_bounds.go create mode 100644 internal/config/zero_value_preservation_test.go create mode 100644 internal/storage/tool_call_bounds.go create mode 100644 internal/storage/tool_call_bounds_test.go diff --git a/cmd/mcpproxy/db_cmd.go b/cmd/mcpproxy/db_cmd.go new file mode 100644 index 000000000..304ccb510 --- /dev/null +++ b/cmd/mcpproxy/db_cmd.go @@ -0,0 +1,565 @@ +package main + +import ( + "errors" + "fmt" + "os" + "path/filepath" + "sort" + "strings" + "time" + + "github.com/spf13/cobra" + "go.etcd.io/bbolt" + bbolterrors "go.etcd.io/bbolt/errors" + + "github.com/smart-mcp-proxy/mcpproxy-go/internal/storage" +) + +// db_cmd.go implements the offline `mcpproxy db` maintenance group (GH #1176). +// +// BBolt returns freed pages to its own freelist, never to the OS, so pruning +// tool-call history shrinks the logical database while config.db stays at its +// high-water mark — one report had a 940MB file that pruning could not shrink. +// bbolt.Compact copies the live data into a fresh file, which is the only way +// to hand those pages back. It needs exclusive access, hence "offline". + +const ( + // defaultCompactTxMaxSize bounds the destination write transaction so a + // multi-GB database does not have to fit in memory at once. + defaultCompactTxMaxSize = int64(64 << 20) + + // defaultStatsTopBuckets is how many buckets `db stats` ranks by key count. + defaultStatsTopBuckets = 10 + + // dbFileName is the fixed name of the BBolt store inside the data dir. + dbFileName = "config.db" + + // lockedRemediation is the only useful thing to say about a locked + // database: BBolt's lock is held for the core's whole lifetime, so no + // amount of waiting or retrying clears it. + lockedRemediation = "The database is held by a running mcpproxy. Stop it first (quit the tray app, or stop the 'mcpproxy serve' process) and retry." +) + +// compactFn is a seam so tests can inject a mid-compaction failure and prove +// the original file survives it. Production always uses bbolt.Compact. +var compactFn = bbolt.Compact + +var ( + dbCompactTxMaxSize int64 + dbCompactKeepBkp bool + dbStatsTopBuckets int +) + +type compactOptions struct { + TxMaxSize int64 + KeepBackup bool +} + +type compactResult struct { + Path string `json:"path" yaml:"path"` + BeforeBytes int64 `json:"before_bytes" yaml:"before_bytes"` + AfterBytes int64 `json:"after_bytes" yaml:"after_bytes"` + ReclaimedBytes int64 `json:"reclaimed_bytes" yaml:"reclaimed_bytes"` + BackupPath string `json:"backup_path,omitempty" yaml:"backup_path,omitempty"` + // BackupBytes is what the retained backup still occupies. ReclaimedBytes + // describes the FILE; until this backup is deleted the filesystem has not + // actually got the space back — which matters most to the user who ran out + // of disk in the first place. + BackupBytes int64 `json:"backup_bytes,omitempty" yaml:"backup_bytes,omitempty"` +} + +type bucketStat struct { + Name string `json:"name" yaml:"name"` + Keys int `json:"keys" yaml:"keys"` + Buckets int `json:"buckets" yaml:"buckets"` +} + +type dbStatsResult struct { + Path string `json:"path" yaml:"path"` + FileBytes int64 `json:"file_bytes" yaml:"file_bytes"` + PageSize int `json:"page_size" yaml:"page_size"` + FreePageN int `json:"free_page_count" yaml:"free_page_count"` + PendingPageN int `json:"pending_page_count" yaml:"pending_page_count"` + ReclaimableBytes int64 `json:"reclaimable_bytes" yaml:"reclaimable_bytes"` + Buckets []bucketStat `json:"buckets" yaml:"buckets"` +} + +var dbCmd = &cobra.Command{ + Use: "db", + Short: "Offline maintenance for the mcpproxy database", + Long: `Offline maintenance for the mcpproxy BBolt database (config.db). + +BBolt never returns freed pages to the operating system, so deleting activity +or tool-call history shrinks the database logically while the file on disk +stays at its high-water mark. 'db compact' rewrites the file to reclaim that +space; 'db stats' reports how much there is to reclaim.`, +} + +var dbCompactCmd = &cobra.Command{ + Use: "compact", + Short: "Rewrite config.db to return freed pages to the filesystem", + Long: `Rewrite config.db into a fresh file, returning freed pages to the filesystem. + +This requires EXCLUSIVE access to the database, so mcpproxy must be stopped +first. The rewrite goes to a temporary file in the same directory and is moved +into place atomically, so an interrupted compaction leaves the original intact. + +Run 'mcpproxy db stats' first to see whether there is anything worth reclaiming. + +Examples: + mcpproxy db compact + mcpproxy db compact --keep-backup=false + mcpproxy db compact -o json`, + RunE: runDBCompact, +} + +var dbStatsCmd = &cobra.Command{ + Use: "stats", + Short: "Report database size, reclaimable space and the largest buckets", + Long: `Report the on-disk size of config.db, how much of it is reclaimable free +pages, and the buckets holding the most keys (every per-server tool-call bucket +is always listed). + +This opens the database READ-ONLY. That is a shared lock, so several 'db stats' +runs coexist, but a running mcpproxy holds an EXCLUSIVE lock on config.db and +will still shut this out — stop mcpproxy first, same as for 'db compact'. + +Examples: + mcpproxy db stats + mcpproxy db stats --top 25 -o json`, + RunE: runDBStats, +} + +func init() { + dbCompactCmd.Flags().Int64Var(&dbCompactTxMaxSize, "tx-max-size", defaultCompactTxMaxSize, + "Maximum size in bytes of a single write transaction during compaction (0 = unbounded)") + dbCompactCmd.Flags().BoolVar(&dbCompactKeepBkp, "keep-backup", true, + "Keep the pre-compaction database as config.db.bak") + dbStatsCmd.Flags().IntVar(&dbStatsTopBuckets, "top", defaultStatsTopBuckets, + "Number of buckets to report, ranked by key count") + + dbCmd.AddCommand(dbCompactCmd) + dbCmd.AddCommand(dbStatsCmd) +} + +// resolveDBPath locates config.db from the global --data-dir flag, falling back +// to the config's data dir and then ~/.mcpproxy, mirroring the other CLI +// commands so `-d` points every subcommand at the same instance (GH #908). +func resolveDBPath() (string, error) { + dir := dataDir + if dir == "" { + if cfg, err := loadCLIConfig(configFile); err == nil && cfg.DataDir != "" { + dir = cfg.DataDir + } + } + if dir == "" { + home, err := os.UserHomeDir() + if err != nil { + return "", fmt.Errorf("failed to determine data directory: %w", err) + } + dir = filepath.Join(home, ".mcpproxy") + } + return filepath.Join(dir, dbFileName), nil +} + +func runDBCompact(cmd *cobra.Command, _ []string) error { + // Past argument parsing every failure is operational, not a usage + // error; cobra's usage dump would push the remediation line off + // screen (same pattern as auth_cmd.go). + cmd.SilenceUsage = true + + dbPath, err := resolveDBPath() + if err != nil { + return err + } + + // Human banner goes to stderr so machine formats keep stdout parseable + // (see docs/cli-output-formatting.md). + fmt.Fprintf(os.Stderr, "Compacting %s ...\n", dbPath) + + res, err := compactDatabase(dbPath, compactOptions{ + TxMaxSize: dbCompactTxMaxSize, + KeepBackup: dbCompactKeepBkp, + }) + if err != nil { + var lockErr *storage.DatabaseLockedError + if errors.As(err, &lockErr) { + // classifyError turns this into exit code 3; the remediation is the + // part the user actually needs. + fmt.Fprintln(os.Stderr, lockedRemediation) + } + return err + } + + formatter, err := GetOutputFormatter() + if err != nil { + return fmt.Errorf("failed to get output formatter: %w", err) + } + + if format := ResolveOutputFormat(); format == "json" || format == "yaml" { + out, err := formatter.Format(res) + if err != nil { + return fmt.Errorf("failed to format output: %w", err) + } + fmt.Println(out) + return nil + } + + rows := [][]string{ + {"before", humanBytes(res.BeforeBytes)}, + {"after", humanBytes(res.AfterBytes)}, + {"reclaimed", humanBytes(res.ReclaimedBytes)}, + } + if res.BackupPath != "" { + // Spell out that the retained backup still holds the original inode. + // "reclaimed" above describes the FILE; the filesystem gets nothing + // back until this is deleted, which is the whole point for the user + // who ran out of disk in the first place. + rows = append(rows, []string{"backup", res.BackupPath}) + rows = append(rows, []string{"backup size", humanBytes(res.BackupBytes)}) + rows = append(rows, []string{"disk freed now", "0 B (the backup still holds the old file)"}) + rows = append(rows, []string{"to reclaim", "verify mcpproxy starts, then delete the backup"}) + } + out, err := formatter.FormatTable([]string{"METRIC", "VALUE"}, rows) + if err != nil { + return fmt.Errorf("failed to format output: %w", err) + } + fmt.Print(out) + return nil +} + +func runDBStats(cmd *cobra.Command, _ []string) error { + // Past argument parsing every failure is operational, not a usage + // error; cobra's usage dump would push the remediation line off + // screen (same pattern as auth_cmd.go). + cmd.SilenceUsage = true + + dbPath, err := resolveDBPath() + if err != nil { + return err + } + + top := dbStatsTopBuckets + if top <= 0 { + top = defaultStatsTopBuckets + } + + stats, err := databaseStats(dbPath, top) + if err != nil { + var lockErr *storage.DatabaseLockedError + if errors.As(err, &lockErr) { + fmt.Fprintln(os.Stderr, lockedRemediation) + } + return err + } + + formatter, err := GetOutputFormatter() + if err != nil { + return fmt.Errorf("failed to get output formatter: %w", err) + } + + if format := ResolveOutputFormat(); format == "json" || format == "yaml" { + out, err := formatter.Format(stats) + if err != nil { + return fmt.Errorf("failed to format output: %w", err) + } + fmt.Println(out) + return nil + } + + // Table mode has no machine consumer — the json/yaml formats returned + // above — and this header is the answer to "should I compact?", so it goes + // to stdout with the table rather than to the stderr banner channel. + fmt.Printf("Database: %s\n", stats.Path) + fmt.Printf("Size on disk: %s | free pages: %d (%s reclaimable) | page size: %d\n", + humanBytes(stats.FileBytes), stats.FreePageN, humanBytes(stats.ReclaimableBytes), stats.PageSize) + if stats.ReclaimableBytes > 0 { + fmt.Printf("Run 'mcpproxy db compact' (with mcpproxy stopped) to return that space to the filesystem.\n") + } + fmt.Println() + + rows := make([][]string, 0, len(stats.Buckets)) + for _, b := range stats.Buckets { + rows = append(rows, []string{b.Name, fmt.Sprintf("%d", b.Keys), fmt.Sprintf("%d", b.Buckets)}) + } + out, err := formatter.FormatTable([]string{"BUCKET", "KEYS", "SUB-BUCKETS"}, rows) + if err != nil { + return fmt.Errorf("failed to format output: %w", err) + } + fmt.Print(out) + return nil +} + +// compactDatabase rewrites srcPath in place via a temp file + atomic rename. +// +// The rename is what makes this safe to interrupt: until it succeeds the +// original file is the only one anything reads, and every failure path removes +// the temp file rather than leaving a half-written database beside the real one. +func compactDatabase(srcPath string, opts compactOptions) (result *compactResult, err error) { + info, err := os.Stat(srcPath) + if err != nil { + return nil, fmt.Errorf("failed to stat database %s: %w", srcPath, err) + } + beforeBytes := info.Size() + + // A short timeout and no retry: a locked database means a running core owns + // it, and waiting cannot fix that — only stopping mcpproxy can. + // + // ReadOnly is deliberate. bbolt.Compact only reads the source, and a + // read-write open commits a freelist-flush transaction when the previous + // close was unclean — exactly the state a user reaching for this command + // may be in. Opening read-only makes "the original is untouched" absolute + // rather than conditional. + src, err := bbolt.Open(srcPath, 0600, &bbolt.Options{ + Timeout: 500 * time.Millisecond, + ReadOnly: true, + PreLoadFreelist: true, + }) + if err != nil { + if errors.Is(err, bbolterrors.ErrTimeout) { + return nil, &storage.DatabaseLockedError{Path: srcPath, Err: err} + } + return nil, fmt.Errorf("failed to open database %s: %w", srcPath, err) + } + defer func() { + if src != nil { + _ = src.Close() + } + }() + + dir := filepath.Dir(srcPath) + + // The temp file must live in the same directory: os.Rename is only atomic + // within a filesystem. + tmpFile, err := os.CreateTemp(dir, dbFileName+".compact-*") + if err != nil { + return nil, fmt.Errorf("failed to create temporary file in %s: %w", dir, err) + } + tmpPath := tmpFile.Name() + if err := tmpFile.Close(); err != nil { + os.Remove(tmpPath) + return nil, fmt.Errorf("failed to close temporary file: %w", err) + } + cleanupTmp := true + defer func() { + if cleanupTmp { + os.Remove(tmpPath) + } + }() + + dst, err := bbolt.Open(tmpPath, info.Mode().Perm(), &bbolt.Options{Timeout: 500 * time.Millisecond}) + if err != nil { + return nil, fmt.Errorf("failed to create destination database: %w", err) + } + dstClosed := false + defer func() { + if !dstClosed { + _ = dst.Close() + } + }() + + if err := compactFn(dst, src, opts.TxMaxSize); err != nil { + return nil, fmt.Errorf("compaction failed: %w", err) + } + + // Close both handles before touching the files: on Windows a rename over an + // open file fails outright. + if err := dst.Close(); err != nil { + return nil, fmt.Errorf("failed to close destination database: %w", err) + } + dstClosed = true + if err := src.Close(); err != nil { + src = nil + return nil, fmt.Errorf("failed to close source database: %w", err) + } + src = nil + + if err := syncPath(tmpPath); err != nil { + return nil, fmt.Errorf("failed to sync compacted database: %w", err) + } + + afterInfo, err := os.Stat(tmpPath) + if err != nil { + return nil, fmt.Errorf("failed to stat compacted database: %w", err) + } + + // bbolt.Open does not chmod a file that already exists, so carry the + // original permissions across rather than leaking os.CreateTemp's 0600. + if err := os.Chmod(tmpPath, info.Mode().Perm()); err != nil { + return nil, fmt.Errorf("failed to set permissions on compacted database: %w", err) + } + + res := &compactResult{ + Path: srcPath, + BeforeBytes: beforeBytes, + AfterBytes: afterInfo.Size(), + ReclaimedBytes: beforeBytes - afterInfo.Size(), + } + + // The backup is a hard link, not a move: config.db therefore never stops + // existing, and the rename below still replaces it in one step. + if opts.KeepBackup { + backupPath := srcPath + ".bak" + if err := os.Remove(backupPath); err != nil && !os.IsNotExist(err) { + return nil, fmt.Errorf("failed to remove stale backup %s: %w", backupPath, err) + } + if err := os.Link(srcPath, backupPath); err != nil { + if err := copyFile(srcPath, backupPath, info.Mode().Perm()); err != nil { + return nil, fmt.Errorf("failed to create backup %s: %w", backupPath, err) + } + } + res.BackupPath = backupPath + res.BackupBytes = beforeBytes + } + + if err := os.Rename(tmpPath, srcPath); err != nil { + // The backup was linked just above and is now meaningless — the + // original is still in place, so leaving a .bak behind would only + // confuse the next run. + if res.BackupPath != "" { + os.Remove(res.BackupPath) + } + return nil, fmt.Errorf("failed to replace %s: %w", srcPath, err) + } + cleanupTmp = false + + // Fsync the directory so the rename itself survives a crash. Best-effort: + // Windows cannot fsync a directory handle, and the data is already durable. + _ = syncPath(dir) + + return res, nil +} + +// databaseStats opens the database read-only and reports what compaction would +// reclaim. +// +// A read-only open takes a SHARED lock, so several db stats runs coexist — but +// a running mcpproxy holds the EXCLUSIVE lock, which shuts every reader out. +// This is offline-only, like db compact. +func databaseStats(srcPath string, top int) (*dbStatsResult, error) { + info, err := os.Stat(srcPath) + if err != nil { + return nil, fmt.Errorf("failed to stat database %s: %w", srcPath, err) + } + + // PreLoadFreelist is required: a read-only open otherwise never loads the + // freelist, and Stats().FreePageN silently reads back as 0. + db, err := bbolt.Open(srcPath, 0600, &bbolt.Options{ + Timeout: 200 * time.Millisecond, + ReadOnly: true, + PreLoadFreelist: true, + }) + if err != nil { + if errors.Is(err, bbolterrors.ErrTimeout) { + return nil, &storage.DatabaseLockedError{Path: srcPath, Err: err} + } + return nil, fmt.Errorf("failed to open database %s: %w", srcPath, err) + } + defer db.Close() + + stats := db.Stats() + pageSize := db.Info().PageSize + + var all []bucketStat + if err := db.View(func(tx *bbolt.Tx) error { + return tx.ForEach(func(name []byte, b *bbolt.Bucket) error { + s := b.Stats() + all = append(all, bucketStat{Name: string(name), Keys: s.KeyN, Buckets: s.BucketN - 1}) + return nil + }) + }); err != nil { + return nil, fmt.Errorf("failed to read bucket statistics: %w", err) + } + + sort.Slice(all, func(i, j int) bool { + if all[i].Keys != all[j].Keys { + return all[i].Keys > all[j].Keys + } + return all[i].Name < all[j].Name + }) + + return &dbStatsResult{ + Path: srcPath, + FileBytes: info.Size(), + PageSize: pageSize, + FreePageN: stats.FreePageN, + PendingPageN: stats.PendingPageN, + ReclaimableBytes: int64(stats.FreePageN) * int64(pageSize), + Buckets: selectReportedBuckets(all, top), + }, nil +} + +// selectReportedBuckets keeps the top-N by key count plus every per-server +// tool-call bucket, because those are the ones that grow unboundedly and so are +// the reason a user is reading this output at all (#1176). +func selectReportedBuckets(sorted []bucketStat, top int) []bucketStat { + if top < 0 { + top = 0 + } + if top > len(sorted) { + top = len(sorted) + } + selected := make([]bucketStat, 0, len(sorted)) + included := make(map[string]bool, len(sorted)) + for _, b := range sorted[:top] { + selected = append(selected, b) + included[b.Name] = true + } + for _, b := range sorted[top:] { + if !included[b.Name] && isToolCallBucket(b.Name) { + selected = append(selected, b) + } + } + return selected +} + +func isToolCallBucket(name string) bool { + return strings.HasPrefix(name, "server_") && strings.HasSuffix(name, "_tool_calls") +} + +// syncPath fsyncs a file or directory so a rename/write survives a power loss. +// syncPath fsyncs a file or directory. +// +// The file case opens O_RDWR on purpose: Windows implements File.Sync as +// FlushFileBuffers, which requires a handle with GENERIC_WRITE, so an +// os.Open'd read-only handle fails there and would abort every compaction. +// Directories cannot be opened O_RDWR, so that case falls back to read-only — +// and the caller treats a directory sync as best-effort anyway. +func syncPath(path string) error { + f, err := os.OpenFile(path, os.O_RDWR, 0) //nolint:gosec // path is derived from the data dir + if err != nil { + if f, err = os.Open(path); err != nil { //nolint:gosec // same path + return err + } + } + if err := f.Sync(); err != nil { + _ = f.Close() + return err + } + return f.Close() +} + +// copyFile is the fallback for filesystems that reject hard links. +func copyFile(srcPath, dstPath string, perm os.FileMode) error { + data, err := os.ReadFile(srcPath) //nolint:gosec // path is derived from the data dir + if err != nil { + return err + } + return os.WriteFile(dstPath, data, perm) +} + +// humanBytes renders a byte count for the table view; JSON/YAML keep the raw +// integers so scripts do not have to parse a unit suffix. +func humanBytes(n int64) string { + const unit = 1024 + if n < unit { + return fmt.Sprintf("%d B", n) + } + div, exp := int64(unit), 0 + for v := n / unit; v >= unit; v /= unit { + div *= unit + exp++ + } + return fmt.Sprintf("%.1f %cB", float64(n)/float64(div), "KMGTPE"[exp]) +} diff --git a/cmd/mcpproxy/db_cmd_test.go b/cmd/mcpproxy/db_cmd_test.go new file mode 100644 index 000000000..8cadb260b --- /dev/null +++ b/cmd/mcpproxy/db_cmd_test.go @@ -0,0 +1,360 @@ +package main + +import ( + "bytes" + "crypto/sha256" + "errors" + "fmt" + "os" + "path/filepath" + "strings" + "testing" + "time" + + "go.etcd.io/bbolt" + + "github.com/smart-mcp-proxy/mcpproxy-go/internal/storage" +) + +// seedDB builds a config.db-shaped database of a few MB and then deletes most +// of it, which is exactly the shape issue #1176 describes: BBolt hands the +// pages back to its own freelist but never to the OS, so the file stays big. +func seedDB(t *testing.T, dir string) string { + t.Helper() + + dbPath := filepath.Join(dir, "config.db") + db, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second}) + if err != nil { + t.Fatalf("open seed db: %v", err) + } + + value := bytes.Repeat([]byte("x"), 4096) + buckets := []string{"server_alpha_tool_calls", "server_beta_tool_calls", "tools"} + + if err := db.Update(func(tx *bbolt.Tx) error { + for _, name := range buckets { + b, err := tx.CreateBucketIfNotExists([]byte(name)) + if err != nil { + return err + } + for i := 0; i < 400; i++ { + if err := b.Put([]byte(fmt.Sprintf("key-%04d", i)), value); err != nil { + return err + } + } + } + return nil + }); err != nil { + t.Fatalf("seed write: %v", err) + } + + // Delete everything except key-0000 in each bucket. key-0000 is the survivor + // the compaction test reads back to prove data was not silently dropped. + if err := db.Update(func(tx *bbolt.Tx) error { + for _, name := range buckets { + b := tx.Bucket([]byte(name)) + for i := 1; i < 400; i++ { + if err := b.Delete([]byte(fmt.Sprintf("key-%04d", i))); err != nil { + return err + } + } + } + return nil + }); err != nil { + t.Fatalf("seed delete: %v", err) + } + + if err := db.Close(); err != nil { + t.Fatalf("close seed db: %v", err) + } + return dbPath +} + +func fileSize(t *testing.T, path string) int64 { + t.Helper() + info, err := os.Stat(path) + if err != nil { + t.Fatalf("stat %s: %v", path, err) + } + return info.Size() +} + +func fileDigest(t *testing.T, path string) [32]byte { + t.Helper() + data, err := os.ReadFile(path) //nolint:gosec // test-controlled path + if err != nil { + t.Fatalf("read %s: %v", path, err) + } + return sha256.Sum256(data) +} + +func TestCompactDatabaseReclaimsSpace(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + before := fileSize(t, dbPath) + + res, err := compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize}) + if err != nil { + t.Fatalf("compactDatabase: %v", err) + } + + if res.BeforeBytes != before { + t.Errorf("BeforeBytes = %d, want %d", res.BeforeBytes, before) + } + after := fileSize(t, dbPath) + if res.AfterBytes != after { + t.Errorf("AfterBytes = %d, want on-disk %d", res.AfterBytes, after) + } + if res.ReclaimedBytes != before-after { + t.Errorf("ReclaimedBytes = %d, want %d", res.ReclaimedBytes, before-after) + } + // "Materially smaller": the seed deletes 399/400 of a multi-MB database, so + // anything short of a large majority means compaction did not happen. + if after > before/2 { + t.Fatalf("file not materially smaller: before=%d after=%d", before, after) + } + + // The atomic-rename contract: the ORIGINAL path must still be a valid, + // openable bbolt DB with the surviving key intact. + db, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second}) + if err != nil { + t.Fatalf("reopen compacted db: %v", err) + } + defer db.Close() + + if err := db.View(func(tx *bbolt.Tx) error { + b := tx.Bucket([]byte("server_alpha_tool_calls")) + if b == nil { + return errors.New("bucket server_alpha_tool_calls missing after compaction") + } + got := b.Get([]byte("key-0000")) + if len(got) != 4096 { + return fmt.Errorf("surviving key length = %d, want 4096", len(got)) + } + return nil + }); err != nil { + t.Fatalf("verify compacted db: %v", err) + } +} + +func TestCompactDatabaseKeepBackup(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + originalDigest := fileDigest(t, dbPath) + + res, err := compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize, KeepBackup: true}) + if err != nil { + t.Fatalf("compactDatabase: %v", err) + } + + if res.BackupPath == "" { + t.Fatal("BackupPath is empty with KeepBackup=true") + } + if got := fileDigest(t, res.BackupPath); got != originalDigest { + t.Error("backup is not a byte-for-byte copy of the pre-compaction database") + } +} + +func TestCompactDatabaseLockedReturnsLockError(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + + // Hold the exclusive flock the way a running core does. + held, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second}) + if err != nil { + t.Fatalf("hold db lock: %v", err) + } + defer held.Close() + + start := time.Now() + _, err = compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize}) + if err == nil { + t.Fatal("compactDatabase succeeded against a locked database") + } + + var lockErr *storage.DatabaseLockedError + if !errors.As(err, &lockErr) { + t.Fatalf("error is %T (%v), want *storage.DatabaseLockedError", err, err) + } + if classifyError(err) != ExitCodeDBLocked { + t.Errorf("classifyError = %d, want %d", classifyError(err), ExitCodeDBLocked) + } + // It must fail fast rather than hang: no retry loop behind the 500ms timeout. + if elapsed := time.Since(start); elapsed > 10*time.Second { + t.Errorf("took %s to report a locked database", elapsed) + } +} + +func TestCompactDatabaseFailureLeavesOriginalIntact(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + originalDigest := fileDigest(t, dbPath) + + wantErr := errors.New("injected compaction failure") + restore := compactFn + compactFn = func(_, _ *bbolt.DB, _ int64) error { return wantErr } + defer func() { compactFn = restore }() + + if _, err := compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize, KeepBackup: true}); !errors.Is(err, wantErr) { + t.Fatalf("error = %v, want %v", err, wantErr) + } + + if got := fileDigest(t, dbPath); got != originalDigest { + t.Error("original database changed after a failed compaction") + } + + entries, err := os.ReadDir(dir) + if err != nil { + t.Fatalf("read dir: %v", err) + } + for _, e := range entries { + if e.Name() != "config.db" { + t.Errorf("failed compaction left behind %q", e.Name()) + } + } +} + +func TestDatabaseStatsReportsReclaimableSpace(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + + stats, err := databaseStats(dbPath, defaultStatsTopBuckets) + if err != nil { + t.Fatalf("databaseStats: %v", err) + } + + if stats.FileBytes != fileSize(t, dbPath) { + t.Errorf("FileBytes = %d, want %d", stats.FileBytes, fileSize(t, dbPath)) + } + if stats.PageSize <= 0 { + t.Fatalf("PageSize = %d, want > 0", stats.PageSize) + } + // Guards the PreLoadFreelist option: without it a read-only open never + // loads the freelist and FreePageN silently reads back as 0. + if stats.FreePageN <= 0 { + t.Fatalf("FreePageN = %d, want > 0 after deleting most of the database", stats.FreePageN) + } + if stats.ReclaimableBytes != int64(stats.FreePageN)*int64(stats.PageSize) { + t.Errorf("ReclaimableBytes = %d, want %d", stats.ReclaimableBytes, int64(stats.FreePageN)*int64(stats.PageSize)) + } + + var sawToolCalls int + for _, b := range stats.Buckets { + if strings.HasPrefix(b.Name, "server_") && strings.HasSuffix(b.Name, "_tool_calls") { + sawToolCalls++ + } + } + if sawToolCalls != 2 { + t.Errorf("reported %d server_*_tool_calls buckets, want 2 (%+v)", sawToolCalls, stats.Buckets) + } +} + +// TestDatabaseStatsSharedLock pins what "read-only" actually buys: concurrent +// readers coexist, but a WRITER (a running mcpproxy) still shuts stats out. +// The help text and the remediation message both depend on this being true. +func TestDatabaseStatsSharedLock(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + + reader, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second, ReadOnly: true}) + if err != nil { + t.Fatalf("hold shared lock: %v", err) + } + if _, err := databaseStats(dbPath, defaultStatsTopBuckets); err != nil { + t.Errorf("databaseStats failed alongside another reader: %v", err) + } + reader.Close() + + writer, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second}) + if err != nil { + t.Fatalf("hold exclusive lock: %v", err) + } + _, err = databaseStats(dbPath, defaultStatsTopBuckets) + writer.Close() + + var lockErr *storage.DatabaseLockedError + if !errors.As(err, &lockErr) { + t.Fatalf("error is %T (%v), want *storage.DatabaseLockedError", err, err) + } + if classifyError(err) != ExitCodeDBLocked { + t.Errorf("classifyError = %d, want %d", classifyError(err), ExitCodeDBLocked) + } +} + +func TestDatabaseStatsMissingFile(t *testing.T) { + if _, err := databaseStats(filepath.Join(t.TempDir(), "config.db"), defaultStatsTopBuckets); err == nil { + t.Fatal("databaseStats succeeded on a missing file") + } +} + +// The whole crash-safety story rests on os.Rename being atomic, and it is only +// atomic within one filesystem — so the temp file must be created beside the +// target, not in the system temp dir. An adversarial review moved that +// os.CreateTemp to "" and every test still passed, so pin it directly. +func TestCompactDatabaseWritesItsTempFileBesideTheTarget(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + + // Fail after the temp file exists but before the rename, then look at what + // was created and where. + var seen []string + orig := compactFn + compactFn = func(_, _ *bbolt.DB, _ int64) error { + entries, err := os.ReadDir(dir) + if err != nil { + return err + } + for _, e := range entries { + seen = append(seen, e.Name()) + } + return errors.New("injected failure") + } + defer func() { compactFn = orig }() + + if _, err := compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize}); err == nil { + t.Fatal("expected the injected failure") + } + + var found bool + for _, name := range seen { + if strings.HasPrefix(name, dbFileName+".compact-") { + found = true + } + } + if !found { + t.Errorf("no temp file in the database's own directory %s; saw %v.\n"+ + "A temp file elsewhere makes the final os.Rename cross-filesystem, which is neither atomic nor (on Linux) even permitted", + dir, seen) + } +} + +// ReclaimedBytes describes the FILE. With the default --keep-backup the .bak is +// a hard link to the original inode, so the filesystem gets nothing back until +// the user deletes it. The result has to say so, or the user in #1176 — who ran +// out of disk — runs this and sees no improvement. +func TestCompactDatabaseReportsWhatTheBackupStillCosts(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + before := fileSize(t, dbPath) + + res, err := compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize, KeepBackup: true}) + if err != nil { + t.Fatalf("compactDatabase: %v", err) + } + + if res.BackupBytes != before { + t.Errorf("BackupBytes = %d, want the pre-compaction size %d", res.BackupBytes, before) + } + if res.ReclaimedBytes-res.BackupBytes >= 0 { + t.Errorf("with a retained backup the disk actually freed must be negative or zero, got reclaimed=%d backup=%d", + res.ReclaimedBytes, res.BackupBytes) + } + + res2, err := compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize, KeepBackup: false}) + if err != nil { + t.Fatalf("compactDatabase without backup: %v", err) + } + if res2.BackupBytes != 0 || res2.BackupPath != "" { + t.Errorf("--keep-backup=false must report no backup, got %q / %d", res2.BackupPath, res2.BackupBytes) + } +} diff --git a/cmd/mcpproxy/main.go b/cmd/mcpproxy/main.go index a66325374..794e7c50e 100644 --- a/cmd/mcpproxy/main.go +++ b/cmd/mcpproxy/main.go @@ -219,6 +219,7 @@ func main() { rootCmd.AddCommand(statusCmd) rootCmd.AddCommand(tokenCmd) rootCmd.AddCommand(telemetryCmd) + rootCmd.AddCommand(dbCmd) rootCmd.AddCommand(feedbackCmd) rootCmd.AddCommand(securityCmd) rootCmd.AddCommand(connectCmd) diff --git a/docs/cli/db-commands.md b/docs/cli/db-commands.md new file mode 100644 index 000000000..433cddec4 --- /dev/null +++ b/docs/cli/db-commands.md @@ -0,0 +1,182 @@ +--- +id: db-commands +title: Database Commands +sidebar_label: Database Commands +sidebar_position: 7 +description: Offline maintenance commands for the MCPProxy BBolt database - compaction and size statistics +keywords: [db, compact, bbolt, database, disk space, maintenance, cli] +--- + +# Database Commands + +The `mcpproxy db` command group performs **offline** maintenance on the MCPProxy +database (`~/.mcpproxy/config.db`). + +## Why compaction is needed + +MCPProxy stores configuration, the tool index and per-server tool-call history in +a single [BBolt](https://github.com/etcd-io/bbolt) file. BBolt returns freed +pages to its own internal freelist — **never to the operating system**. + +The practical consequence: pruning tool-call history, deleting servers or +lowering retention bounds shrinks the database *logically*, but `config.db` stays +at its all-time high-water mark on disk. A user report ([#1176](https://github.com/smart-mcp-proxy/mcpproxy-go/issues/1176)) +described a 940 MB `config.db` that stayed 940 MB after pruning. + +`mcpproxy db compact` rewrites the live data into a fresh file, which is the only +way to hand those pages back to the filesystem. + +## Overview + +``` +mcpproxy db +├── stats Report file size, reclaimable space and the largest buckets +└── compact Rewrite config.db to return freed pages to the filesystem +``` + +Both subcommands need the database lock, so **stop MCPProxy first** — quit the +tray app, or stop the `mcpproxy serve` process. If the database is locked, both +commands fail fast with exit code **3** and a message telling you what to stop; +they never retry, because the running core holds its lock for its whole lifetime. + +Both subcommands support the standard output flags (`-o table|json|yaml`, +`--json`, `MCPPROXY_OUTPUT`). Human banners are written to **stderr**, so stdout +stays parseable in `json`/`yaml` mode. + +## `mcpproxy db stats` + +Read-only inspection: find out whether compaction is worth running before you +stop the proxy for it. + +```bash +mcpproxy db stats +mcpproxy db stats --top 25 +mcpproxy db stats -o json +``` + +| Flag | Default | Description | +|------|---------|-------------| +| `--top ` | `10` | Number of buckets to report, ranked by key count | + +Example: + +``` +Database: /Users/me/.mcpproxy/config.db +Size on disk: 16.0 MB | free pages: 755 (11.8 MB reclaimable) | page size: 16384 + +BUCKET KEYS SUB-BUCKETS +config 500 0 +server_alpha_tool_calls 1 0 +server_beta_tool_calls 1 0 +``` + +Every `server__tool_calls` bucket is always listed, even when it falls +outside the `--top` cut — those are the buckets that grow without bound, so they +are the ones you are looking for. + +`reclaimable_bytes` is `free_page_count × page_size`: roughly what a compaction +would give back. If it is a small fraction of `file_bytes`, compaction is not +worth the downtime. + +:::note Read-only still needs the lock +`db stats` opens the database read-only, which takes a *shared* lock. Several +`db stats` runs can therefore proceed concurrently — but a running MCPProxy holds +an *exclusive* lock, which still shuts `db stats` out. Stop MCPProxy first. +::: + +## `mcpproxy db compact` + +```bash +mcpproxy db compact +mcpproxy db compact --keep-backup=false +mcpproxy db compact --tx-max-size 134217728 +mcpproxy db compact -o json +``` + +| Flag | Default | Description | +|------|---------|-------------| +| `--keep-backup` | `true` | Keep the pre-compaction database as `config.db.bak` | +| `--tx-max-size ` | `67108864` (64 MB) | Maximum size of a single write transaction during the rewrite (`0` = unbounded) | + +Example: + +``` +Compacting /Users/me/.mcpproxy/config.db ... +METRIC VALUE +before 16.0 MB +after 4.0 MB +reclaimed 12.0 MB +backup /Users/me/.mcpproxy/config.db.bak +``` + +JSON output carries the raw byte counts so scripts do not have to parse a unit +suffix: + +```json +{ + "path": "/Users/me/.mcpproxy/config.db", + "before_bytes": 16777216, + "after_bytes": 4194304, + "reclaimed_bytes": 12582912, + "backup_path": "/Users/me/.mcpproxy/config.db.bak" +} +``` + +### Safety properties + +- The rewrite goes to a **temporary file in the same directory** and is moved + into place with a single `rename`. An interrupted or failed compaction leaves + the original `config.db` byte-for-byte untouched, and the temporary file is + removed. +- The compacted file is **fsynced** before the rename and the parent directory + after it, so the swap survives a power loss. (The directory fsync is + best-effort: Windows cannot fsync a directory handle.) +- The source database is opened **read-only**, so nothing can write to it even + in the failure paths. +- With `--keep-backup` (the default) the pre-compaction file is preserved as + `config.db.bak` via a hard link, so `config.db` never stops existing during the + operation. A previous `.bak` is replaced. +- File permissions are carried over from the original database. + +### Disk space + +Compaction peaks at **old size + new size**, because both files exist until the +rename. Make sure the filesystem holding `~/.mcpproxy` has at least as much free +space as the current `config.db` (see `db stats` for its size). + +**The default run does not free disk on its own.** With `--keep-backup` (the +default) the pre-compaction database survives as `config.db.bak`, holding the +original inode — so `reclaimed` in the output describes the *file*, not the +filesystem. The command reports this directly: + +``` +before 940.2 MB +after 312.4 MB +reclaimed 627.8 MB +backup /Users/you/.mcpproxy/config.db.bak +backup size 940.2 MB +disk freed now -312.4 MB +``` + +Check that the new `config.db` is healthy (start mcpproxy, confirm your servers +and history are there), then delete the backup to actually get the space back: + +```bash +rm ~/.mcpproxy/config.db.bak +``` + +If you are already out of disk, run `mcpproxy db compact --keep-backup=false` — +it frees the space immediately, at the cost of having no rollback. + +## Exit codes + +| Code | Meaning | +|------|---------| +| `0` | Success | +| `1` | General failure (I/O error, compaction error) | +| `3` | Database is locked — stop MCPProxy and retry | + +## Related + +- [Management Commands](management-commands.md) +- [Activity Commands](activity-commands.md) — pruning tool-call history, which is what creates the reclaimable space diff --git a/docs/features/activity-log.md b/docs/features/activity-log.md index d08c80754..620cabec3 100644 --- a/docs/features/activity-log.md +++ b/docs/features/activity-log.md @@ -473,12 +473,32 @@ Activity logging is enabled by default. Configure via `mcp_config.json`: |---------|---------|-------------| | `activity_retention_days` | 90 | Days to retain activity records | | `activity_max_records` | 100000 | Maximum records before pruning oldest | -| `activity_max_size_mb` | 256 | Maximum total activity-log size in MB before pruning oldest (`0` disables). Runs alongside the age and count caps to bound `config.db` growth when records carry large payloads. | +| `activity_max_size_mb` | 256 | Maximum total activity-log size in MB before pruning oldest (`0` disables). Runs alongside the age and count caps to bound `config.db` growth when records carry large payloads. An explicit `0` now survives a config save — before #1175 it was silently deleted on the next write and the 256MB cap came back. | | `activity_max_response_size` | 65536 | Max response text stored per record (bytes). Applies to `tool_call`, `internal_tool_call` and `prompt_get`; `0` or absent falls back to 65536 and it cannot be disabled. Read at startup only, like its retention siblings. Truncated text keeps a `...[truncated]` suffix. Already-stored records are not rewritten, and (as with pruning) the BBolt file does not shrink on disk. Sensitive-data detection still scans the untruncated response, under its own `sensitive_data_detection.max_payload_size_kb` cap. | | `activity_cleanup_interval_min` | 60 | Background cleanup interval (minutes) | > **Why the size cap?** The age and count caps alone do not bound disk: with large per-record payloads the log can reach hundreds of MB while still under 100k records / 90 days. `activity_max_size_mb` removes the oldest records (always keeping the newest) until the log is within the byte budget. Note: pruning frees pages for reuse but does not shrink the database file on disk (BBolt does not return freed pages to the OS). +## Tool-call history + +The activity log is not the only per-call store. `GET /api/v1/tool-calls` is served from separate per-server buckets (`server__tool_calls`) that hold a recent debugging window: the full arguments and the upstream result, per server. On one deployment these held ~432MB of a 940MB `config.db` because nothing bounded them at all (#1176). + +```json +{ + "tool_call_max_response_size": 65536, + "tool_call_max_records_per_server": 1000 +} +``` + +| Setting | Default | Description | +|---------|---------|-------------| +| `tool_call_max_response_size` | 65536 | Cap on the marshalled response stored per tool-call record, in bytes. Over the cap the stored `response` is replaced by `{"truncated": true, "original_bytes": N, "preview": "…"}` and the record carries `response_truncated: true` with `response_bytes: N`. The caller still received the response whole — only the stored copy is shortened. | +| `tool_call_max_records_per_server` | 1000 | Calls retained per server. The oldest are evicted in the same transaction as the write, so the bucket can never exceed the cap. | + +A non-positive value means "use the default", not "disable" — this store has no off switch. Removing a server now drops its call history with it, and histories belonging to servers that are no longer configured are swept on startup (the synthetic `code_execution` history is never swept). + +> **Reclaiming the space.** All of the above bounds *future* growth. BBolt does not return freed pages to the operating system, so an already-large `config.db` stays large. Use `mcpproxy db stats` to see how much is reclaimable and `mcpproxy db compact` — with mcpproxy stopped — to shrink the file. See [docs/cli/db-commands.md](../cli/db-commands.md). + ## Use Cases ### Debugging Tool Calls diff --git a/internal/config/config.go b/internal/config/config.go index 401bfc29b..9817e716c 100644 --- a/internal/config/config.go +++ b/internal/config/config.go @@ -254,11 +254,15 @@ type Config struct { // without this key serialize byte-identically (SC-004). Profiles []ProfileConfig `json:"profiles,omitempty" mapstructure:"profiles"` // Deprecated: TopK is superseded by ToolsLimit and has no runtime effect. Kept for backward compatibility. - TopK int `json:"top_k,omitempty" mapstructure:"top-k"` - ToolsLimit int `json:"tools_limit" mapstructure:"tools-limit"` - ToolResponseLimit int `json:"tool_response_limit" mapstructure:"tool-response-limit"` - CallToolTimeout Duration `json:"call_tool_timeout" mapstructure:"call-tool-timeout" swaggertype:"string"` - MaxResultSizeChars int `json:"max_result_size_chars,omitempty" mapstructure:"max-result-size-chars"` // Advertised on every tool as `_meta.anthropic/maxResultSizeChars`; raises Claude Code's inline-response ceiling from 50k to up to 500k chars. Set to 0 to disable. + TopK int `json:"top_k,omitempty" mapstructure:"top-k"` + ToolsLimit int `json:"tools_limit" mapstructure:"tools-limit"` + ToolResponseLimit int `json:"tool_response_limit" mapstructure:"tool-response-limit"` + CallToolTimeout Duration `json:"call_tool_timeout" mapstructure:"call-tool-timeout" swaggertype:"string"` + // MaxResultSizeChars is advertised on every tool as + // `_meta.anthropic/maxResultSizeChars`; it raises Claude Code's + // inline-response ceiling from 50k to up to 500k chars. Omit the key for + // the 500000 default; set it to 0 to disable the annotation. + MaxResultSizeChars *int `json:"max_result_size_chars,omitempty" mapstructure:"max-result-size-chars"` // Concurrency limits (spec 093, GH #955). Scope (a) of FR-020: the GLOBAL // AGGREGATE limiter — one proxy-wide cap on concurrently running upstream @@ -462,11 +466,23 @@ type Config struct { OAuthExpiryWarningHours float64 `json:"oauth_expiry_warning_hours,omitempty" mapstructure:"oauth-expiry-warning-hours"` // Hours before token expiry to show degraded status (default: 1.0) // Activity logging settings (RFC-003) - ActivityRetentionDays int `json:"activity_retention_days,omitempty" mapstructure:"activity-retention-days"` // Max age before pruning (default: 90) - ActivityMaxRecords int `json:"activity_max_records,omitempty" mapstructure:"activity-max-records"` // Max records before pruning (default: 100000) - ActivityMaxSizeMB int `json:"activity_max_size_mb,omitempty" mapstructure:"activity-max-size-mb"` // Max total activity-log size in MB before pruning oldest (default: 256, 0=disabled) - ActivityMaxResponseSize int `json:"activity_max_response_size,omitempty" mapstructure:"activity-max-response-size"` // Response truncation limit in bytes (default: 65536) - ActivityCleanupIntervalMin int `json:"activity_cleanup_interval_min,omitempty" mapstructure:"activity-cleanup-interval-min"` // Background cleanup interval in minutes (default: 60) + ActivityRetentionDays int `json:"activity_retention_days,omitempty" mapstructure:"activity-retention-days"` // Max age before pruning (default: 90) + ActivityMaxRecords int `json:"activity_max_records,omitempty" mapstructure:"activity-max-records"` // Max records before pruning (default: 100000) + // ActivityMaxSizeMB caps the total activity-log size in MB before the + // oldest records are pruned. Omit the key for the 256MB default; set it to + // 0 to disable the size cap. + ActivityMaxSizeMB *int `json:"activity_max_size_mb,omitempty" mapstructure:"activity-max-size-mb"` + ActivityMaxResponseSize int `json:"activity_max_response_size,omitempty" mapstructure:"activity-max-response-size"` // Response truncation limit in bytes (default: 65536) + ActivityCleanupIntervalMin int `json:"activity_cleanup_interval_min,omitempty" mapstructure:"activity-cleanup-interval-min"` // Background cleanup interval in minutes (default: 60) + + // Bounds for the per-server tool-call history behind GET /api/v1/tool-calls + // (#1176). It is a recent-debugging window, not an audit log — the activity + // log is the durable record — and it kept every upstream response whole, + // per server, forever. A non-positive value means "use the default", not + // "disable": this store must never be unbounded again, so there is + // deliberately no off switch. + ToolCallMaxResponseSize int `json:"tool_call_max_response_size,omitempty" mapstructure:"tool-call-max-response-size"` // Cap on a stored response, in bytes (default: 65536) + ToolCallMaxRecordsPerServer int `json:"tool_call_max_records_per_server,omitempty" mapstructure:"tool-call-max-records-per-server"` // Calls retained per server (default: 1000) // Intent declaration settings (Spec 018) IntentDeclaration *IntentDeclarationConfig `json:"intent_declaration,omitempty" mapstructure:"intent-declaration"` @@ -1483,7 +1499,8 @@ type TracingExporterConfig struct { // "localhost:4318" for http or "localhost:4317" for grpc. Endpoint string `json:"endpoint,omitempty" mapstructure:"endpoint"` // SampleRate is the head-based trace sampling ratio in [0,1]. Default 0.1. - SampleRate float64 `json:"sample_rate,omitempty" mapstructure:"sample-rate"` + // Omit the key for the 0.1 default; set it to 0 to sample nothing. + SampleRate *float64 `json:"sample_rate,omitempty" mapstructure:"sample-rate"` } // Default OTLP transport values shared by defaults and validation repair. @@ -1503,10 +1520,9 @@ func DefaultMetricsExporterConfig() *MetricsExporterConfig { // with sane transport defaults pre-filled. func DefaultTracingExporterConfig() *TracingExporterConfig { return &TracingExporterConfig{ - Enabled: false, - Protocol: defaultTracingProtocol, - Endpoint: defaultTracingHTTPEnd, - SampleRate: defaultTracingSampleRate, + Enabled: false, + Protocol: defaultTracingProtocol, + Endpoint: defaultTracingHTTPEnd, } } @@ -1697,15 +1713,14 @@ func PruneDeprecatedRegistries(cfg *Config) int { // DefaultConfig returns a default configuration func DefaultConfig() *Config { return &Config{ - Listen: defaultPort, - EnableSocket: true, // Enable Unix socket/named pipe by default for local IPC - DataDir: "", // Will be set to ~/.mcpproxy by loader - DebugSearch: false, - Servers: []*ServerConfig{}, - ToolsLimit: 15, - ToolResponseLimit: 20000, // Default 20000 characters - CallToolTimeout: Duration(2 * time.Minute), // Default 2 minutes for tool calls - MaxResultSizeChars: 500000, // Claude Code's inline-response hard max + Listen: defaultPort, + EnableSocket: true, // Enable Unix socket/named pipe by default for local IPC + DataDir: "", // Will be set to ~/.mcpproxy by loader + DebugSearch: false, + Servers: []*ServerConfig{}, + ToolsLimit: 15, + ToolResponseLimit: 20000, // Default 20000 characters + CallToolTimeout: Duration(2 * time.Minute), // Default 2 minutes for tool calls // TOON output (spec 084): off by default — responses byte-identical // to pre-feature behavior (FR-002). @@ -1795,11 +1810,14 @@ func DefaultConfig() *Config { ToolResponseSessionRiskWarning: false, // Activity logging defaults (RFC-003) - ActivityRetentionDays: 90, // 90 days retention - ActivityMaxRecords: 100000, // 100K records max - ActivityMaxSizeMB: 256, // 256MB total activity-log size cap (0 = disabled) - ActivityMaxResponseSize: 65536, // 64KB response truncation - ActivityCleanupIntervalMin: 60, // 1 hour cleanup interval + ActivityRetentionDays: 90, // 90 days retention + ActivityMaxRecords: 100000, // 100K records max + ActivityMaxResponseSize: 65536, // 64KB response truncation + + ToolCallMaxResponseSize: 65536, // 64KB per stored tool-call response + ToolCallMaxRecordsPerServer: 1000, // recent-history window per server + + ActivityCleanupIntervalMin: 60, // 1 hour cleanup interval // Intent declaration defaults (Spec 018) - strict validation by default for security IntentDeclaration: DefaultIntentDeclarationConfig(), @@ -2729,8 +2747,12 @@ func (c *Config) Validate() error { tr.Endpoint = defaultTracingHTTPEnd } } - if tr.SampleRate < 0 || tr.SampleRate > 1 { - tr.SampleRate = defaultTracingSampleRate + // Only repair a value the operator actually wrote. Leaving it nil keeps + // "absent" distinct from "explicitly 0" (#1175); materialising the default + // here would write the key into every config that never mentioned it. + if tr.SampleRate != nil && (*tr.SampleRate < 0 || *tr.SampleRate > 1) { + repaired := defaultTracingSampleRate + tr.SampleRate = &repaired } return nil diff --git a/internal/config/effective_bounds.go b/internal/config/effective_bounds.go new file mode 100644 index 000000000..17e8828a2 --- /dev/null +++ b/internal/config/effective_bounds.go @@ -0,0 +1,49 @@ +package config + +// Defaults for the tri-state numeric settings of #1175. +// +// They live here, next to the readers that apply them, rather than only in +// DefaultConfig(): two REST write paths decode a client document into a +// ZERO-valued Config — handlePatchConfig's `var merged config.Config` and +// oauth.UnmaskLiveConfigDocument's `&config.Config{}` — and never see the +// constructor. A default that lives only in DefaultConfig() is wrong on those +// paths, so the reader is the single resolution point. +const ( + defaultMaxResultSizeChars = 500000 // Claude Code's inline-response hard max + defaultActivityMaxSizeMB = 256 // total activity-log size cap in MB +) + +// EffectiveMaxResultSizeChars resolves the `_meta.anthropic/maxResultSizeChars` +// ceiling advertised on every tool. +// +// nil (key absent) = the built-in default. An explicit 0 = the operator +// disabled the annotation, and stays 0. +func (c *Config) EffectiveMaxResultSizeChars() int { + if c == nil || c.MaxResultSizeChars == nil { + return defaultMaxResultSizeChars + } + return *c.MaxResultSizeChars +} + +// EffectiveActivityMaxSizeMB resolves the total activity-log size cap in MB. +// +// nil (key absent) = the built-in default. An explicit 0 = the size cap is +// disabled, and stays disabled. +func (c *Config) EffectiveActivityMaxSizeMB() int { + if c == nil || c.ActivityMaxSizeMB == nil { + return defaultActivityMaxSizeMB + } + return *c.ActivityMaxSizeMB +} + +// EffectiveSampleRate resolves the head-based trace sampling ratio. +// +// nil (key absent) = the built-in 0.1. An explicit 0 = sample nothing, and +// stays nothing. Nil-safe on the receiver: an absent tracing block is the +// common case. +func (t *TracingExporterConfig) EffectiveSampleRate() float64 { + if t == nil || t.SampleRate == nil { + return defaultTracingSampleRate + } + return *t.SampleRate +} diff --git a/internal/config/observability_test.go b/internal/config/observability_test.go index c37924c33..a63b79392 100644 --- a/internal/config/observability_test.go +++ b/internal/config/observability_test.go @@ -62,7 +62,7 @@ func TestDefaultObservabilityConfig_ExportersOffByDefault(t *testing.T) { // Sane transport defaults are pre-filled so enabling is a one-line change. assert.Equal(t, "http", o.Tracing.Protocol) assert.NotEmpty(t, o.Tracing.Endpoint) - assert.InDelta(t, 0.1, o.Tracing.SampleRate, 1e-9) + assert.InDelta(t, 0.1, o.Tracing.EffectiveSampleRate(), 1e-9) } func TestValidate_FillsExporterSubConfigs(t *testing.T) { @@ -85,11 +85,11 @@ func TestValidate_RepairsTracingProtocolAndSampleRate(t *testing.T) { cfg.Observability.Tracing = &TracingExporterConfig{ Enabled: true, Protocol: "carrier-pigeon", // unsupported -> repaired to http - SampleRate: 5.0, // out of [0,1] -> clamped to default + SampleRate: ptrFloat64(5.0), // out of [0,1] -> clamped to default } require.NoError(t, cfg.Validate()) assert.Equal(t, "http", cfg.Observability.Tracing.Protocol) - assert.InDelta(t, 0.1, cfg.Observability.Tracing.SampleRate, 1e-9) + assert.InDelta(t, 0.1, cfg.Observability.Tracing.EffectiveSampleRate(), 1e-9) // A missing endpoint is filled so the exporter can construct. assert.NotEmpty(t, cfg.Observability.Tracing.Endpoint) } @@ -101,11 +101,13 @@ func TestValidate_PreservesValidTracingExporter(t *testing.T) { Enabled: true, Protocol: "grpc", Endpoint: "otel-collector:4317", - SampleRate: 0.5, + SampleRate: ptrFloat64(0.5), } require.NoError(t, cfg.Validate()) assert.True(t, cfg.Observability.Metrics.Enabled) assert.Equal(t, "grpc", cfg.Observability.Tracing.Protocol) assert.Equal(t, "otel-collector:4317", cfg.Observability.Tracing.Endpoint) - assert.InDelta(t, 0.5, cfg.Observability.Tracing.SampleRate, 1e-9) + assert.InDelta(t, 0.5, cfg.Observability.Tracing.EffectiveSampleRate(), 1e-9) } + +func ptrFloat64(v float64) *float64 { return &v } diff --git a/internal/config/zero_value_preservation_test.go b/internal/config/zero_value_preservation_test.go new file mode 100644 index 000000000..000adf79d --- /dev/null +++ b/internal/config/zero_value_preservation_test.go @@ -0,0 +1,226 @@ +package config + +import ( + "encoding/json" + "os" + "path/filepath" + "reflect" + "strings" + "testing" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" +) + +// #1175: three config fields carried `omitempty` on a numeric type while 0 was +// a meaningful, documented value. SaveConfig is json.MarshalIndent, so an +// operator's explicit 0 was deleted from mcp_config.json on the next save and +// the field silently reverted to its default: +// +// max_result_size_chars 0 -> 500000 ("Set to 0 to disable") +// activity_max_size_mb 0 -> 256 ("0=disabled") +// observability.tracing.sample_rate 0 -> 0.1 (sample nothing) +// +// The distinction that has to survive is three-valued, which is why dropping +// `omitempty` from the int is NOT equivalent: absent means "the default +// applies", an explicit 0 means "the operator disabled it", and both must +// round-trip through marshal -> decode without becoming the other. + +func writeAndReload(t *testing.T, cfg *Config) *Config { + t.Helper() + path := filepath.Join(t.TempDir(), "mcp_config.json") + require.NoError(t, SaveConfig(cfg, path)) + reloaded, err := LoadFromFile(path) + require.NoError(t, err) + return reloaded +} + +func rawKeys(t *testing.T, cfg *Config) map[string]interface{} { + t.Helper() + path := filepath.Join(t.TempDir(), "mcp_config.json") + require.NoError(t, SaveConfig(cfg, path)) + data, err := os.ReadFile(path) + require.NoError(t, err) + var raw map[string]interface{} + require.NoError(t, json.Unmarshal(data, &raw)) + return raw +} + +func TestExplicitZeroMaxResultSizeCharsSurvivesSave(t *testing.T) { + cfg := DefaultConfig() + zero := 0 + cfg.MaxResultSizeChars = &zero + + raw := rawKeys(t, cfg) + require.Contains(t, raw, "max_result_size_chars", + "an operator's explicit 0 must be written, not erased by omitempty") + assert.EqualValues(t, 0, raw["max_result_size_chars"]) + + reloaded := writeAndReload(t, cfg) + require.NotNil(t, reloaded.MaxResultSizeChars) + assert.Equal(t, 0, *reloaded.MaxResultSizeChars) + assert.Equal(t, 0, reloaded.EffectiveMaxResultSizeChars(), + "0 means disabled and must stay disabled across a save") +} + +func TestExplicitZeroActivityMaxSizeMBSurvivesSave(t *testing.T) { + cfg := DefaultConfig() + zero := 0 + cfg.ActivityMaxSizeMB = &zero + + reloaded := writeAndReload(t, cfg) + require.NotNil(t, reloaded.ActivityMaxSizeMB) + assert.Equal(t, 0, reloaded.EffectiveActivityMaxSizeMB(), + "0 disables the activity size cap and must survive a save") +} + +func TestExplicitZeroSampleRateSurvivesSave(t *testing.T) { + cfg := DefaultConfig() + require.NotNil(t, cfg.Observability) + require.NotNil(t, cfg.Observability.Tracing) + zero := 0.0 + cfg.Observability.Tracing.SampleRate = &zero + + reloaded := writeAndReload(t, cfg) + require.NotNil(t, reloaded.Observability) + require.NotNil(t, reloaded.Observability.Tracing) + assert.Equal(t, 0.0, reloaded.Observability.Tracing.EffectiveSampleRate(), + "an operator who turns sampling off must not get 10% back") +} + +// The mirror image, and the reason dropping omitempty is not the fix: a config +// that never mentioned the key must stay silent about it and keep the default. +func TestAbsentKeysStayAbsentAndKeepDefaults(t *testing.T) { + cfg := DefaultConfig() + require.Nil(t, cfg.MaxResultSizeChars, "the default config states defaults in the reader, not the field") + require.Nil(t, cfg.ActivityMaxSizeMB) + + raw := rawKeys(t, cfg) + assert.NotContains(t, raw, "max_result_size_chars", + "an unset key must not be materialised at its default") + assert.NotContains(t, raw, "activity_max_size_mb") + + reloaded := writeAndReload(t, cfg) + assert.Nil(t, reloaded.MaxResultSizeChars) + assert.Equal(t, defaultMaxResultSizeChars, reloaded.EffectiveMaxResultSizeChars()) + assert.Equal(t, defaultActivityMaxSizeMB, reloaded.EffectiveActivityMaxSizeMB()) + assert.Equal(t, defaultTracingSampleRate, reloaded.Observability.Tracing.EffectiveSampleRate()) +} + +// Two REST write paths decode into a ZERO config.Config rather than a +// DefaultConfig-seeded one (handlePatchConfig's `var merged config.Config`, +// and oauth.UnmaskLiveConfigDocument's `&config.Config{}`). Any default that +// lives only in DefaultConfig() is therefore wrong on the API path, which is +// why the Effective readers — not the constructor — are the resolution point. +func TestEffectiveReadersResolveOnAZeroValuedConfig(t *testing.T) { + var cfg Config + assert.Equal(t, defaultMaxResultSizeChars, cfg.EffectiveMaxResultSizeChars()) + assert.Equal(t, defaultActivityMaxSizeMB, cfg.EffectiveActivityMaxSizeMB()) + + var tracing TracingExporterConfig + assert.Equal(t, defaultTracingSampleRate, tracing.EffectiveSampleRate()) + + var nilTracing *TracingExporterConfig + assert.Equal(t, defaultTracingSampleRate, nilTracing.EffectiveSampleRate(), + "the reader must be nil-safe: an absent tracing block is the common case") +} + +// numericOmitemptyAllowlist records every numeric config field that keeps +// `omitempty` deliberately, with the reason it is safe. A field is safe only +// when 0 and absent mean the SAME thing — otherwise the value an operator +// wrote is deleted on the next SaveConfig, which is exactly #1175. +// +// Adding a field here is a decision, not a formality: say why 0 is not a +// meaningful value, or convert the field to a pointer instead. +var numericOmitemptyAllowlist = map[string]string{ + // "0 = use the default" by construction: the setters ignore non-positive + // values so the store can never be unbounded again (#1176). + "Config.ToolCallMaxResponseSize": "non-positive means 'use the default'; there is deliberately no off switch", + "Config.ToolCallMaxRecordsPerServer": "non-positive means 'use the default'; there is deliberately no off switch", + "Config.ActivityMaxResponseSize": "ActivityService.SetMaxResponseSize ignores non-positive, so 0 and absent both mean 64KB", + "Config.ActivityRetentionDays": "0 and absent both fall back to the built-in retention age", + "Config.ActivityMaxRecords": "0 and absent both fall back to the built-in record cap", + "Config.ActivityCleanupIntervalMin": "0 and absent both fall back to the built-in interval", + "Config.TopK": "deprecated and inert; superseded by ToolsLimit", + "Config.OAuthExpiryWarningHours": "0 and absent both fall back to the 1.0h default", + "Config.ToonMinSavingsPct": "documented as '0/unset -> 15' — the two are the same value by design", + + // Durations whose own doc comments say zero and unset are the same value. + "Config.Servers.LauncherWaitTimeout": "doc comment: 'Zero or unset -> 30s default'", + "Config.DockerIsolation.Timeout": "container startup timeout; 0 and absent both take the built-in default", + "Config.Observability.UsageCacheTTL": "doc comment: 'Default 5s' — 0 and absent both resolve to it", + "Config.Observability.UsagePersistInterval": "doc comment: 'Default 30s' — 0 and absent both resolve to it", + "Config.Security.ScanTimeoutDefault": "0 and absent both take the built-in scan timeout", + "Config.Security.IntegrityCheckInterval": "0 and absent both take the built-in check interval", + + // Code execution: every one of these is validated as "0 means use default" + // (Validate: 'must be between 1 and 600000 milliseconds (or 0 for default)'). + "Config.CodeExecutionTimeoutMs": "validated as '0 for default'", + "Config.CodeExecutionPoolSize": "validated as '0 for default'", + "Config.CodeExecutionMaxParallel": "validated as '0 for default'", + "Config.CodeExecutionMaxToolCalls": "0 means unlimited AND is the default, so erasing it is a no-op", + + // 0 is not distinguishable from absent because the reader treats <= 0 as + // "use the default" — the same shape as an Effective…() pointer reader, + // minus the pointer. + "Config.OutputValidation.MaxBytes": "EffectiveMaxBytes treats <= 0 as the 5MB default", + "Config.OutputValidation.MaxDepth": "EffectiveMaxDepth treats <= 0 as the depth-64 default", + + // 0 and absent both fall back to the DefaultConfig value; there is no + // documented meaning for an explicit 0. + "Config.DockerRecovery.MaxRetries": "0 means unlimited AND is the zero default, so erasing it is a no-op", + "Config.OutputSanitisation.MaxRedactions": "no production reader distinguishes 0 from absent; both take the 100 default", +} + +// TestNumericFieldsWithOmitemptyAreAllowlisted walks the Config tree and fails +// on any numeric field carrying `omitempty` that has not been declared safe. +// This is the guard that stops the class coming back a fourth time. +func TestNumericFieldsWithOmitemptyAreAllowlisted(t *testing.T) { + var offenders []string + seen := map[reflect.Type]bool{} + + var walk func(t reflect.Type, path string) + walk = func(rt reflect.Type, path string) { + for rt.Kind() == reflect.Ptr || rt.Kind() == reflect.Slice || rt.Kind() == reflect.Map { + rt = rt.Elem() + } + if rt.Kind() != reflect.Struct || seen[rt] { + return + } + seen[rt] = true + + for i := 0; i < rt.NumField(); i++ { + field := rt.Field(i) + if field.PkgPath != "" { // unexported + continue + } + tag := field.Tag.Get("json") + name := path + "." + field.Name + + if isNumericKind(field.Type.Kind()) && strings.Contains(tag, ",omitempty") { + if _, ok := numericOmitemptyAllowlist[name]; !ok { + offenders = append(offenders, name+" (json:"+strings.Split(tag, ",")[0]+")") + } + } + walk(field.Type, name) + } + } + walk(reflect.TypeOf(Config{}), "Config") + + assert.Empty(t, offenders, + "numeric fields with omitempty silently erase an explicitly configured 0 on SaveConfig (#1175).\n"+ + "Either make the field a pointer with an Effective…() reader, or add it to numericOmitemptyAllowlist\n"+ + "with the reason 0 and absent mean the same thing.\nOffenders:\n %s", + strings.Join(offenders, "\n ")) +} + +func isNumericKind(k reflect.Kind) bool { + switch k { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, + reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, + reflect.Float32, reflect.Float64: + return true + default: + return false + } +} diff --git a/internal/contracts/types.go b/internal/contracts/types.go index c546b28d9..32e54c340 100644 --- a/internal/contracts/types.go +++ b/internal/contracts/types.go @@ -957,6 +957,15 @@ type ToolCallRecord struct { MCPClientName string `json:"mcp_client_name,omitempty"` // MCP client name from InitializeRequest MCPClientVersion string `json:"mcp_client_version,omitempty"` // MCP client version Annotations *ToolAnnotation `json:"annotations,omitempty"` // Tool behavior hints snapshot + + // ResponseTruncated and ResponseBytes describe a STORAGE-side cut (#1176): + // the caller received the response whole, and only the persisted copy was + // shortened to tool_call_max_response_size. When ResponseTruncated is true + // the Response object carries {truncated, original_bytes, preview, note} + // instead of the upstream result, and ResponseBytes is its size before the + // cut. + ResponseTruncated bool `json:"response_truncated,omitempty"` // Stored copy was shortened + ResponseBytes int64 `json:"response_bytes,omitempty"` // Marshalled response size before truncation } // GetToolCallsResponse is the response for GET /api/v1/tool-calls diff --git a/internal/runtime/lifecycle.go b/internal/runtime/lifecycle.go index 16642e28e..430c14a82 100644 --- a/internal/runtime/lifecycle.go +++ b/internal/runtime/lifecycle.go @@ -1061,6 +1061,17 @@ func (r *Runtime) LoadConfiguredServers(cfg *config.Config) error { } else if pruned > 0 { r.logger.Info("Pruned orphan tool-approval records", zap.Int("removed", pruned)) } + + // Same GC for per-server tool-call history (#1176). These buckets held + // ~432MB of one reporter's 940MB config.db and nothing ever deleted + // them — a server removed from the config left its whole call history + // behind forever. Guarded by the same non-empty check above, and the + // synthetic code_execution bucket is never treated as an orphan. + if pruned, perr := r.storageManager.PruneOrphanToolCalls(configuredNames); perr != nil { + r.logger.Warn("Failed to prune orphan tool-call history", zap.Error(perr)) + } else if pruned > 0 { + r.logger.Info("Pruned orphan tool-call history", zap.Int("servers_removed", pruned)) + } } // Add/remove servers asynchronously to prevent blocking on slow connections diff --git a/internal/runtime/runtime.go b/internal/runtime/runtime.go index b880b3f10..d940669a1 100644 --- a/internal/runtime/runtime.go +++ b/internal/runtime/runtime.go @@ -319,20 +319,28 @@ func New(cfg *config.Config, cfgPath string, logger *zap.Logger) (*Runtime, erro activityService.SetUsagePersistInterval(cfg.Observability.UsagePersistInterval.Duration()) } + // Per-record size caps are applied UNCONDITIONALLY, outside the retention + // guard below. They used to ride on that `if`, which only ever fired + // because `cfg.ActivityMaxSizeMB >= 0` is trivially true for a plain int — + // so making that field a tri-state pointer (#1175) would have silently + // disabled the 64KB cap #1174 shipped, for every config that omits the + // key. The caps are not retention; they do not belong behind its guard. + activityService.SetMaxResponseSize(cfg.ActivityMaxResponseSize) + storageManager.SetToolCallLimits(cfg.ToolCallMaxResponseSize, cfg.ToolCallMaxRecordsPerServer) + // Wire activity retention config from config file - if cfg.ActivityRetentionDays > 0 || cfg.ActivityMaxRecords > 0 || cfg.ActivityCleanupIntervalMin > 0 || cfg.ActivityMaxSizeMB >= 0 { + if cfg.ActivityRetentionDays > 0 || cfg.ActivityMaxRecords > 0 || cfg.ActivityCleanupIntervalMin > 0 || cfg.EffectiveActivityMaxSizeMB() >= 0 { maxAge := time.Duration(cfg.ActivityRetentionDays) * 24 * time.Hour checkInterval := time.Duration(cfg.ActivityCleanupIntervalMin) * time.Minute // ActivityMaxSizeMB: 0 disables the size cap, so pass the explicit byte // value (>= 0 is applied; -1 would mean "unchanged"). - maxSizeBytes := int64(cfg.ActivityMaxSizeMB) * 1024 * 1024 + maxSizeBytes := int64(cfg.EffectiveActivityMaxSizeMB()) * 1024 * 1024 activityService.SetRetentionConfig(maxAge, cfg.ActivityMaxRecords, checkInterval, maxSizeBytes) - activityService.SetMaxResponseSize(cfg.ActivityMaxResponseSize) logger.Info("Activity retention config applied", zap.Int("max_response_size", cfg.ActivityMaxResponseSize), zap.Int("retention_days", cfg.ActivityRetentionDays), zap.Int("max_records", cfg.ActivityMaxRecords), - zap.Int("max_size_mb", cfg.ActivityMaxSizeMB), + zap.Int("max_size_mb", cfg.EffectiveActivityMaxSizeMB()), zap.Int("cleanup_interval_min", cfg.ActivityCleanupIntervalMin)) } @@ -1188,24 +1196,26 @@ func (r *Runtime) GetToolCalls(limit, offset int, scope storage.ToolCallScope) ( contractCalls := make([]*contracts.ToolCallRecord, len(pagedCalls)) for i, call := range pagedCalls { contractCalls[i] = &contracts.ToolCallRecord{ - ID: call.ID, - ServerID: call.ServerID, - ServerName: call.ServerName, - ToolName: call.ToolName, - Arguments: call.Arguments, - Response: call.Response, - Error: call.Error, - Duration: call.Duration, - Timestamp: call.Timestamp, - ConfigPath: call.ConfigPath, - RequestID: call.RequestID, - Metrics: convertTokenMetrics(call.Metrics), - ParentCallID: call.ParentCallID, - ExecutionType: call.ExecutionType, - MCPSessionID: call.MCPSessionID, - MCPClientName: call.MCPClientName, - MCPClientVersion: call.MCPClientVersion, - Annotations: convertToolAnnotations(call.Annotations), + ID: call.ID, + ServerID: call.ServerID, + ServerName: call.ServerName, + ToolName: call.ToolName, + Arguments: call.Arguments, + Response: call.Response, + Error: call.Error, + Duration: call.Duration, + Timestamp: call.Timestamp, + ConfigPath: call.ConfigPath, + RequestID: call.RequestID, + Metrics: convertTokenMetrics(call.Metrics), + ParentCallID: call.ParentCallID, + ExecutionType: call.ExecutionType, + MCPSessionID: call.MCPSessionID, + MCPClientName: call.MCPClientName, + MCPClientVersion: call.MCPClientVersion, + Annotations: convertToolAnnotations(call.Annotations), + ResponseTruncated: call.ResponseTruncated, + ResponseBytes: call.ResponseBytes, } } @@ -1232,24 +1242,26 @@ func (r *Runtime) GetToolCallByID(id string) (*contracts.ToolCallRecord, error) for _, call := range calls { if call.ID == id { return &contracts.ToolCallRecord{ - ID: call.ID, - ServerID: call.ServerID, - ServerName: call.ServerName, - ToolName: call.ToolName, - Arguments: call.Arguments, - Response: call.Response, - Error: call.Error, - Duration: call.Duration, - Timestamp: call.Timestamp, - ConfigPath: call.ConfigPath, - RequestID: call.RequestID, - Metrics: convertTokenMetrics(call.Metrics), - ParentCallID: call.ParentCallID, - ExecutionType: call.ExecutionType, - MCPSessionID: call.MCPSessionID, - MCPClientName: call.MCPClientName, - MCPClientVersion: call.MCPClientVersion, - Annotations: convertToolAnnotations(call.Annotations), + ID: call.ID, + ServerID: call.ServerID, + ServerName: call.ServerName, + ToolName: call.ToolName, + Arguments: call.Arguments, + Response: call.Response, + Error: call.Error, + Duration: call.Duration, + Timestamp: call.Timestamp, + ConfigPath: call.ConfigPath, + RequestID: call.RequestID, + Metrics: convertTokenMetrics(call.Metrics), + ParentCallID: call.ParentCallID, + ExecutionType: call.ExecutionType, + MCPSessionID: call.MCPSessionID, + MCPClientName: call.MCPClientName, + MCPClientVersion: call.MCPClientVersion, + Annotations: convertToolAnnotations(call.Annotations), + ResponseTruncated: call.ResponseTruncated, + ResponseBytes: call.ResponseBytes, }, nil } } @@ -1281,24 +1293,26 @@ func (r *Runtime) GetServerToolCalls(serverName string, limit int) ([]*contracts contractCalls := make([]*contracts.ToolCallRecord, len(calls)) for i, call := range calls { contractCalls[i] = &contracts.ToolCallRecord{ - ID: call.ID, - ServerID: call.ServerID, - ServerName: call.ServerName, - ToolName: call.ToolName, - Arguments: call.Arguments, - Response: call.Response, - Error: call.Error, - Duration: call.Duration, - Timestamp: call.Timestamp, - ConfigPath: call.ConfigPath, - RequestID: call.RequestID, - Metrics: convertTokenMetrics(call.Metrics), - ParentCallID: call.ParentCallID, - ExecutionType: call.ExecutionType, - MCPSessionID: call.MCPSessionID, - MCPClientName: call.MCPClientName, - MCPClientVersion: call.MCPClientVersion, - Annotations: convertToolAnnotations(call.Annotations), + ID: call.ID, + ServerID: call.ServerID, + ServerName: call.ServerName, + ToolName: call.ToolName, + Arguments: call.Arguments, + Response: call.Response, + Error: call.Error, + Duration: call.Duration, + Timestamp: call.Timestamp, + ConfigPath: call.ConfigPath, + RequestID: call.RequestID, + Metrics: convertTokenMetrics(call.Metrics), + ParentCallID: call.ParentCallID, + ExecutionType: call.ExecutionType, + MCPSessionID: call.MCPSessionID, + MCPClientName: call.MCPClientName, + MCPClientVersion: call.MCPClientVersion, + Annotations: convertToolAnnotations(call.Annotations), + ResponseTruncated: call.ResponseTruncated, + ResponseBytes: call.ResponseBytes, } } @@ -1428,18 +1442,20 @@ func (r *Runtime) ReplayToolCall(ctx context.Context, id string, arguments map[s // Convert to contract type return &contracts.ToolCallRecord{ - ID: newCall.ID, - ServerID: newCall.ServerID, - ServerName: newCall.ServerName, - ToolName: newCall.ToolName, - Arguments: newCall.Arguments, - Response: newCall.Response, - Error: newCall.Error, - Duration: newCall.Duration, - Timestamp: newCall.Timestamp, - ConfigPath: newCall.ConfigPath, - RequestID: newCall.RequestID, - Annotations: convertToolAnnotations(newCall.Annotations), + ID: newCall.ID, + ServerID: newCall.ServerID, + ServerName: newCall.ServerName, + ToolName: newCall.ToolName, + Arguments: newCall.Arguments, + Response: newCall.Response, + Error: newCall.Error, + Duration: newCall.Duration, + Timestamp: newCall.Timestamp, + ConfigPath: newCall.ConfigPath, + RequestID: newCall.RequestID, + Annotations: convertToolAnnotations(newCall.Annotations), + ResponseTruncated: newCall.ResponseTruncated, + ResponseBytes: newCall.ResponseBytes, }, nil } @@ -1461,24 +1477,26 @@ func (r *Runtime) GetToolCallsBySession(sessionID string, limit, offset int, sco records := make([]*contracts.ToolCallRecord, 0, len(storageRecords)) for _, rec := range storageRecords { records = append(records, &contracts.ToolCallRecord{ - ID: rec.ID, - ServerID: rec.ServerID, - ServerName: rec.ServerName, - ToolName: rec.ToolName, - Arguments: rec.Arguments, - Response: rec.Response, - Error: rec.Error, - Duration: rec.Duration, - Timestamp: rec.Timestamp, - ConfigPath: rec.ConfigPath, - RequestID: rec.RequestID, - Metrics: convertTokenMetrics(rec.Metrics), - ParentCallID: rec.ParentCallID, - ExecutionType: rec.ExecutionType, - MCPSessionID: rec.MCPSessionID, - MCPClientName: rec.MCPClientName, - MCPClientVersion: rec.MCPClientVersion, - Annotations: convertToolAnnotations(rec.Annotations), + ID: rec.ID, + ServerID: rec.ServerID, + ServerName: rec.ServerName, + ToolName: rec.ToolName, + Arguments: rec.Arguments, + Response: rec.Response, + Error: rec.Error, + Duration: rec.Duration, + Timestamp: rec.Timestamp, + ConfigPath: rec.ConfigPath, + RequestID: rec.RequestID, + Metrics: convertTokenMetrics(rec.Metrics), + ParentCallID: rec.ParentCallID, + ExecutionType: rec.ExecutionType, + MCPSessionID: rec.MCPSessionID, + MCPClientName: rec.MCPClientName, + MCPClientVersion: rec.MCPClientVersion, + Annotations: convertToolAnnotations(rec.Annotations), + ResponseTruncated: rec.ResponseTruncated, + ResponseBytes: rec.ResponseBytes, }) } diff --git a/internal/server/mcp.go b/internal/server/mcp.go index cc9774623..eef629f35 100644 --- a/internal/server/mcp.go +++ b/internal/server/mcp.go @@ -504,7 +504,7 @@ func NewMCPProxyServer( // the default 50k chars up to the declared value (max 500k), so large // upstream tool responses flow through inline instead of being spilled // to disk as a 2KB preview. No-op when config is 0. - registerMaxResultSizeHook(hooks, config.MaxResultSizeChars) + registerMaxResultSizeHook(hooks, config.EffectiveMaxResultSizeChars()) // Create MCP server with capabilities and hooks capabilities := []mcpserver.ServerOption{ diff --git a/internal/server/observability_config_test.go b/internal/server/observability_config_test.go index e10e26cd1..a46d108a2 100644 --- a/internal/server/observability_config_test.go +++ b/internal/server/observability_config_test.go @@ -51,7 +51,7 @@ func TestBuildObservabilityConfig_EnablesAndMapsTracing(t *testing.T) { Enabled: true, Protocol: "grpc", Endpoint: "collector:4317", - SampleRate: 0.25, + SampleRate: samplePtr(0.25), } out := buildObservabilityConfig(cfg) assert.True(t, out.Metrics.Enabled) @@ -115,3 +115,6 @@ func TestFinishToolCall_NilObservabilityNoPanic(t *testing.T) { assert.Nil(t, span) p.finishToolCall(span, "s", "t", 1, nil) // must not panic } + +// samplePtr builds a *float64 for the tri-state SampleRate field (#1175). +func samplePtr(v float64) *float64 { return &v } diff --git a/internal/server/server.go b/internal/server/server.go index c6f15de67..23c6d4a8c 100644 --- a/internal/server/server.go +++ b/internal/server/server.go @@ -199,7 +199,10 @@ func buildObservabilityConfig(cfg *config.Config) observability.Config { out.Tracing.Enabled = obs.Tracing.Enabled out.Tracing.Protocol = obs.Tracing.Protocol out.Tracing.OTLPEndpoint = obs.Tracing.Endpoint - out.Tracing.SampleRate = obs.Tracing.SampleRate + // Resolve the tri-state pointer here (#1175): the observability manager + // takes a concrete ratio, and an operator's explicit 0 must reach it as 0 + // rather than as "unset, so 10%". + out.Tracing.SampleRate = obs.Tracing.EffectiveSampleRate() } return out } diff --git a/internal/storage/manager.go b/internal/storage/manager.go index 36479edb7..b728181e2 100644 --- a/internal/storage/manager.go +++ b/internal/storage/manager.go @@ -32,6 +32,13 @@ type Manager struct { // personal edition, where every token is ownerless. See // SetAgentTokenOwnerGate. ownerGate atomic.Value // agentTokenOwnerGate + + // toolCallMaxResponseBytes and toolCallMaxRecords bound the per-server + // tool-call history (#1176). Both are guarded by mu, set once from config + // via SetToolCallLimits and read on every RecordToolCall. Zero means "use + // the documented default" — see toolCallLimits. + toolCallMaxResponseBytes int + toolCallMaxRecords int } // NewManager creates a new storage manager @@ -343,7 +350,25 @@ func (m *Manager) DeleteUpstreamServer(name string) error { m.mu.Lock() defer m.mu.Unlock() - return m.db.DeleteUpstream(name) + if err := m.db.DeleteUpstream(name); err != nil { + return err + } + + // Drop the server's call history with it. Leaving it behind is how the + // tool-call buckets grew unbounded across a server's whole lifetime and + // beyond it (#1176): nothing else ever deleted them — CleanupStaleServerData + // exists but has no caller. + // + // The history is keyed by server IDENTITY, not by name, and one name can + // own several identities over its life (the id is a hash of the server's + // attributes, so editing a URL or command mints a new one). Delete every + // identity this name has held, plus a name-keyed bucket if some caller + // ever wrote one. + if err := m.deleteToolCallHistoryForName(name); err != nil { + return fmt.Errorf("failed to delete tool call history for %s: %w", name, err) + } + + return nil } // EnableUpstreamServer enables/disables an upstream server using async operations @@ -1048,7 +1073,10 @@ func (m *Manager) RecordToolCall(record *ToolCallRecord) error { m.mu.Lock() defer m.mu.Unlock() - bucketName := fmt.Sprintf("server_%s_tool_calls", record.ServerID) + maxResponseBytes, maxRecords := m.toolCallLimits() + bounded := boundToolCallResponse(record, maxResponseBytes) + + bucketName := toolCallsBucketName(record.ServerID) key := fmt.Sprintf("%d_%s", record.Timestamp.UnixNano(), record.ID) return m.db.db.Update(func(tx *bbolt.Tx) error { @@ -1057,12 +1085,20 @@ func (m *Manager) RecordToolCall(record *ToolCallRecord) error { return err } - data, err := json.Marshal(record) + data, err := json.Marshal(bounded) if err != nil { return err } - return bucket.Put([]byte(key), data) + if err := bucket.Put([]byte(key), data); err != nil { + return err + } + + // Bound the bucket in the same transaction as the write, so the + // history can never exceed the cap even briefly and no separate + // cleanup pass has to exist (there was none: CleanupStaleServerData + // has no caller). + return pruneToolCallBucket(bucket, maxRecords) }) } diff --git a/internal/storage/server_identity.go b/internal/storage/server_identity.go index f3074693c..4387d4525 100644 --- a/internal/storage/server_identity.go +++ b/internal/storage/server_identity.go @@ -76,6 +76,14 @@ type ToolCallRecord struct { MCPClientName string `json:"mcp_client_name,omitempty"` // MCP client name from InitializeRequest MCPClientVersion string `json:"mcp_client_version,omitempty"` // MCP client version Annotations *config.ToolAnnotations `json:"annotations,omitempty"` // Tool behavior hints snapshot + + // ResponseTruncated and ResponseBytes describe a STORAGE-side cut (#1176): + // the caller received the response whole, and only this persisted copy was + // shortened to tool_call_max_response_size. ResponseBytes is the size of + // the marshalled response before the cut, so a consumer can tell a + // shortened record from a small one. + ResponseTruncated bool `json:"response_truncated,omitempty"` + ResponseBytes int64 `json:"response_bytes,omitempty"` } // DiagnosticRecord represents a diagnostic event for a server diff --git a/internal/storage/tool_call_bounds.go b/internal/storage/tool_call_bounds.go new file mode 100644 index 000000000..6d3cbf764 --- /dev/null +++ b/internal/storage/tool_call_bounds.go @@ -0,0 +1,357 @@ +package storage + +import ( + "encoding/json" + "fmt" + "strings" + "unicode/utf8" + + "go.etcd.io/bbolt" +) + +const ( + // DefaultToolCallMaxResponseSize bounds the marshalled response persisted + // on a single per-server tool-call record, in bytes. It matches the + // activity log's DefaultMaxResponseSize so the two record types that + // mirror the same call are bounded the same way. + DefaultToolCallMaxResponseSize = 64 * 1024 + + // DefaultToolCallMaxRecordsPerServer bounds how many call records a single + // server__tool_calls bucket retains. The store is a debugging history, + // not an audit log — the activity log is the durable record — so it keeps + // a recent window rather than everything. + DefaultToolCallMaxRecordsPerServer = 1000 + + // toolCallPreviewBytes is how much of an oversized response survives as a + // readable head on the stored record. + toolCallPreviewBytes = 2048 + + // serverIdentitiesBucket holds the ServerIdentity records that map a + // server NAME to the SHA-256 id its tool-call bucket is keyed by. + serverIdentitiesBucket = "server_identities" + + // codeExecutionServerID is the synthetic server id under which the + // code_execution built-in records its parent call. It has a real bucket + // but no entry in server_identities, so every sweep keyed on configured + // servers must whitelist it or it deletes the parent of every recorded + // script run. + codeExecutionServerID = "code_execution" +) + +// toolCallsBucketName is the single place the per-server bucket name is built. +func toolCallsBucketName(serverID string) string { + return fmt.Sprintf("server_%s_tool_calls", serverID) +} + +// SetToolCallLimits configures the per-record response cap (in bytes of +// marshalled JSON) and the per-server record count for the tool-call history. +// +// Non-positive values are ignored, leaving the current limit in place, so a +// config that omits the keys cannot silently restore the unbounded growth of +// #1176. This mirrors ActivityService.SetMaxResponseSize. +func (m *Manager) SetToolCallLimits(maxResponseBytes, maxRecordsPerServer int) { + m.mu.Lock() + defer m.mu.Unlock() + + if maxResponseBytes > 0 { + m.toolCallMaxResponseBytes = maxResponseBytes + } + if maxRecordsPerServer > 0 { + m.toolCallMaxRecords = maxRecordsPerServer + } +} + +// toolCallLimits reads the effective limits, falling back to the documented +// defaults for a Manager built before SetToolCallLimits ran (or by a test). +func (m *Manager) toolCallLimits() (maxResponseBytes, maxRecords int) { + maxResponseBytes = m.toolCallMaxResponseBytes + if maxResponseBytes <= 0 { + maxResponseBytes = DefaultToolCallMaxResponseSize + } + maxRecords = m.toolCallMaxRecords + if maxRecords <= 0 { + maxRecords = DefaultToolCallMaxRecordsPerServer + } + return maxResponseBytes, maxRecords +} + +// boundToolCallResponse returns a copy of record whose Response is bounded to +// maxBytes of marshalled JSON, or record itself when it already fits. +// +// The caller keeps its own record after RecordToolCall returns — mcp.go reuses +// it for token accounting and code_execution links children to the parent — so +// this never writes through the pointer it was given. +// +// Response stays a JSON OBJECT. contracts.ToolCallRecord.Response is a +// documented REST payload on four endpoints (GET /api/v1/tool-calls and +// friends) and httpapi.maskToolCallRecord walks it as structured JSON, so +// replacing it with a bare string would be a breaking API change. +func boundToolCallResponse(record *ToolCallRecord, maxBytes int) *ToolCallRecord { + if record == nil { + return record + } + + bounded := record + if args := boundToolCallArguments(record.Arguments, maxBytes); args != nil { + copied := *record + copied.Arguments = args + bounded = &copied + } + if record.Response == nil { + return bounded + } + + encoded, err := json.Marshal(record.Response) + if err != nil { + // An unmarshallable response would fail the record write below anyway; + // leave it for that path to report rather than guessing at its size. + return bounded + } + if len(encoded) <= maxBytes { + return bounded + } + + if bounded == record { + copied := *record + bounded = &copied + } + bounded.Response = map[string]interface{}{ + "truncated": true, + "original_bytes": len(encoded), + "preview": truncateUTF8(string(encoded), toolCallPreviewBytes), + "note": "response omitted: exceeded tool_call_max_response_size. " + + "The full response was delivered to the caller; only this stored copy is shortened.", + } + bounded.ResponseTruncated = true + bounded.ResponseBytes = int64(len(encoded)) + return bounded +} + +// boundToolCallArguments caps the stored arguments the same way, returning nil +// when they already fit. +// +// A tool called with a megabyte of input persists that megabyte too — the +// echo-shaped case makes the record twice as big as the response cap allows. +// Unlike the activity log this store feeds no detector (sensitive-data +// scanning runs on the activity path, which keeps its own copy), so shortening +// here narrows nothing. +func boundToolCallArguments(args map[string]interface{}, maxBytes int) map[string]interface{} { + if len(args) == 0 { + return nil + } + encoded, err := json.Marshal(args) + if err != nil || len(encoded) <= maxBytes { + return nil + } + return map[string]interface{}{ + "truncated": true, + "original_bytes": len(encoded), + "preview": truncateUTF8(string(encoded), toolCallPreviewBytes), + "note": "arguments omitted: exceeded tool_call_max_response_size. " + + "The full arguments were sent to the upstream server; only this stored copy is shortened.", + } +} + +// truncateUTF8 cuts s to at most maxBytes without splitting a rune, so the +// preview stays valid JSON text. +func truncateUTF8(s string, maxBytes int) string { + if len(s) <= maxBytes { + return s + } + cut := maxBytes + for cut > 0 && !utf8.RuneStart(s[cut]) { + cut-- + } + return s[:cut] + "...[truncated]" +} + +// pruneToolCallBucket evicts the oldest records until at most maxRecords +// remain. Keys are "_", so cursor order is chronological and +// the oldest are at the front. +// +// It walks BACKWARDS from the newest key and stops after maxRecords+1 steps, +// so the cost of the common case (a bucket already at its cap) is bounded by +// the cap rather than by the bucket size. Bucket.Stats().KeyN is deliberately +// not used: inside the same write transaction it does not count the Put that +// just happened, which leaves the bucket one record over the cap forever. +func pruneToolCallBucket(bucket *bbolt.Bucket, maxRecords int) error { + cursor := bucket.Cursor() + + kept := 0 + k, _ := cursor.Last() + for k != nil && kept < maxRecords { + kept++ + k, _ = cursor.Prev() + } + if k == nil { + return nil + } + + // Everything from here to the front is excess. Collect first, then delete: + // mutating through the cursor while stepping it is not safe in bbolt. + var doomed [][]byte + for ; k != nil; k, _ = cursor.Prev() { + doomed = append(doomed, append([]byte(nil), k...)) + } + for _, key := range doomed { + if err := bucket.Delete(key); err != nil { + return err + } + } + return nil +} + +// deleteToolCallBucketTx drops a server's whole call history inside tx. +// Reports whether a bucket was actually removed. +func deleteToolCallBucketTx(tx *bbolt.Tx, serverID string) (bool, error) { + name := []byte(toolCallsBucketName(serverID)) + if tx.Bucket(name) == nil { + return false, nil + } + if err := tx.DeleteBucket(name); err != nil { + return false, err + } + return true, nil +} + +// PruneOrphanToolCalls drops per-server tool-call history for servers that are +// no longer configured, mirroring PruneOrphanToolApprovals. It takes server +// NAMES, as its sibling does, and returns how many server histories it removed. +// +// The translation in the middle is the whole point. These buckets are keyed by +// SERVER IDENTITY — the SHA-256 GenerateServerID computes from a server's +// stable attributes (mcp.go passes serverID, not serverName) — so comparing a +// bucket's key against configured NAMES marks every live history an orphan and +// deletes the lot. The names are resolved through server_identities first. +// +// Two guards on top of that: +// - the synthetic code_execution bucket is never an orphan; it holds the +// parent record of every code_execution run and has no identity at all; +// - an empty server_identities bucket aborts the sweep. That state means the +// identity store has not been populated yet, not that every server is gone. +func (m *Manager) PruneOrphanToolCalls(configuredServers []string) (int, error) { + m.mu.Lock() + defer m.mu.Unlock() + + configured := make(map[string]bool, len(configuredServers)) + for _, name := range configuredServers { + configured[name] = true + } + + removed := 0 + err := m.db.db.Update(func(tx *bbolt.Tx) error { + keep, identitiesKnown, err := liveToolCallOwners(tx, configured) + if err != nil { + return err + } + if !identitiesKnown { + // No identities recorded: we cannot tell a live history from a + // dead one, and guessing deletes real data. + return nil + } + + var orphans [][]byte + if err := tx.ForEach(func(name []byte, _ *bbolt.Bucket) error { + serverID, ok := serverIDFromToolCallsBucket(string(name)) + if !ok || keep[serverID] { + return nil + } + orphans = append(orphans, append([]byte(nil), name...)) + return nil + }); err != nil { + return err + } + + for _, name := range orphans { + if err := tx.DeleteBucket(name); err != nil { + return err + } + removed++ + } + return nil + }) + if err != nil { + return 0, fmt.Errorf("failed to prune orphan tool calls: %w", err) + } + return removed, nil +} + +// liveToolCallOwners returns the set of bucket keys whose history must be kept, +// and whether the identity store had anything to say. A configured server is +// kept under every identity it has ever had (its attributes change over time, +// and each variant hashes to a different id) and under its bare name, which is +// what a caller that never registered an identity would have written. +func liveToolCallOwners(tx *bbolt.Tx, configured map[string]bool) (keep map[string]bool, identitiesKnown bool, err error) { + keep = map[string]bool{codeExecutionServerID: true} + for name := range configured { + keep[name] = true + } + + bucket := tx.Bucket([]byte(serverIdentitiesBucket)) + if bucket == nil { + return keep, false, nil + } + + err = bucket.ForEach(func(_, value []byte) error { + var identity ServerIdentity + if uerr := json.Unmarshal(value, &identity); uerr != nil { + // An unreadable identity is a reason to keep data, not delete it. + identitiesKnown = true + return nil + } + identitiesKnown = true + if configured[identity.ServerName] { + keep[identity.ID] = true + } + return nil + }) + return keep, identitiesKnown, err +} + +// serverIDFromToolCallsBucket extracts the server id from a +// "server__tool_calls" bucket name. Server ids may themselves contain +// underscores, so the match is on the fixed prefix and suffix rather than a +// split. +func serverIDFromToolCallsBucket(name string) (string, bool) { + const prefix = "server_" + const suffix = "_tool_calls" + if !strings.HasPrefix(name, prefix) || !strings.HasSuffix(name, suffix) { + return "", false + } + id := name[len(prefix) : len(name)-len(suffix)] + if id == "" { + return "", false + } + return id, true +} + +// deleteToolCallHistoryForName drops every tool-call bucket belonging to a +// server name: one per identity the name has held, plus a name-keyed bucket +// for any caller that recorded without registering an identity. +func (m *Manager) deleteToolCallHistoryForName(name string) error { + return m.db.db.Update(func(tx *bbolt.Tx) error { + ids := []string{name} + + if bucket := tx.Bucket([]byte(serverIdentitiesBucket)); bucket != nil { + if err := bucket.ForEach(func(_, value []byte) error { + var identity ServerIdentity + if err := json.Unmarshal(value, &identity); err != nil { + return nil //nolint:nilerr // an unreadable identity is not a reason to fail a delete + } + if identity.ServerName == name { + ids = append(ids, identity.ID) + } + return nil + }); err != nil { + return err + } + } + + for _, id := range ids { + if _, err := deleteToolCallBucketTx(tx, id); err != nil { + return err + } + } + return nil + }) +} diff --git a/internal/storage/tool_call_bounds_test.go b/internal/storage/tool_call_bounds_test.go new file mode 100644 index 000000000..b86307bd2 --- /dev/null +++ b/internal/storage/tool_call_bounds_test.go @@ -0,0 +1,278 @@ +package storage + +import ( + "encoding/json" + "strings" + "testing" + "time" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" + "go.uber.org/zap" + + "github.com/smart-mcp-proxy/mcpproxy-go/internal/config" +) + +// The per-server "server__tool_calls" buckets were the other half of the +// 940MB config.db in #1173: RecordToolCall did CreateBucketIfNotExists + Put +// with no size cap, no count cap and no eviction, and ToolCallRecord.Response +// is a bare interface{} holding the whole upstream CallToolResult. One large +// response was persisted whole, per server, forever (#1176). +// +// These cases drive the real write path and assert against what actually +// landed in BBolt, so they fail on the pre-fix code rather than on a mock. + +func newBoundsManager(t *testing.T) *Manager { + t.Helper() + mgr, err := NewManager(t.TempDir(), zap.NewNop().Sugar()) + require.NoError(t, err) + t.Cleanup(func() { _ = mgr.Close() }) + return mgr +} + +func bigToolCall(id, serverID string, responseSize int) *ToolCallRecord { + return &ToolCallRecord{ + ID: id, + ServerID: serverID, + ServerName: serverID, + ToolName: "fetch", + Arguments: map[string]interface{}{"path": "/big"}, + Response: map[string]interface{}{"text": strings.Repeat("x", responseSize)}, + Timestamp: time.Now().UTC(), + } +} + +func TestRecordToolCallCapsOversizedResponse(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(4096, 0) + + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", "srv", 200_000))) + + stored, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + + encoded, err := json.Marshal(stored[0]) + require.NoError(t, err) + assert.Less(t, len(encoded), 50_000, + "a 200KB response must not be persisted whole under a 4KB cap") + assert.True(t, stored[0].ResponseTruncated, + "a record shortened on the write path must say so") + assert.Greater(t, stored[0].ResponseBytes, int64(200_000), + "ResponseBytes must record the size the upstream actually returned") + + // The field stays a JSON object. contracts.ToolCallRecord.Response is a + // documented REST payload (GET /api/v1/tool-calls) and the masking pass + // walks it as structured JSON, so retyping it to a bare string would be a + // breaking API change. + obj, ok := stored[0].Response.(map[string]interface{}) + require.True(t, ok, "Response must remain a JSON object, got %T", stored[0].Response) + assert.Equal(t, true, obj["truncated"]) + assert.NotEmpty(t, obj["preview"], "a truncated record keeps a readable head of the payload") +} + +func TestRecordToolCallKeepsSmallResponseVerbatim(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(64*1024, 0) + + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", "srv", 100))) + + stored, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + + assert.False(t, stored[0].ResponseTruncated) + assert.Zero(t, stored[0].ResponseBytes, "an untruncated record carries no size annotation") + obj, ok := stored[0].Response.(map[string]interface{}) + require.True(t, ok) + assert.Equal(t, strings.Repeat("x", 100), obj["text"], "a small response is stored verbatim") +} + +// The caller keeps its own record after RecordToolCall returns — mcp.go reuses +// toolCallRecord for token accounting and code_execution keeps the parent +// record to link children. Capping must not reach back into it. +func TestRecordToolCallDoesNotMutateCallersRecord(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(1024, 0) + + record := bigToolCall("call-1", "srv", 100_000) + require.NoError(t, mgr.RecordToolCall(record)) + + assert.False(t, record.ResponseTruncated, "the caller's record must be untouched") + obj, ok := record.Response.(map[string]interface{}) + require.True(t, ok) + assert.Len(t, obj["text"], 100_000, "the caller still holds the whole response") +} + +func TestRecordToolCallPrunesBucketToMaxRecords(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(64*1024, 5) + + base := time.Now().UTC() + for i := 0; i < 12; i++ { + rec := bigToolCall("call-"+string(rune('a'+i)), "srv", 10) + rec.Timestamp = base.Add(time.Duration(i) * time.Millisecond) + require.NoError(t, mgr.RecordToolCall(rec)) + } + + stored, err := mgr.GetServerToolCalls("srv", 100) + require.NoError(t, err) + assert.Len(t, stored, 5, "the bucket must be bounded to the configured record count") + + // GetServerToolCalls returns newest first, so the survivors are the tail. + assert.Equal(t, "call-"+string(rune('a'+11)), stored[0].ID, "the newest call survives") + for _, rec := range stored { + assert.NotEqual(t, "call-a", rec.ID, "the oldest calls are the ones evicted") + } +} + +// Every writer must be bounded, not just the ones a caller remembered to cap. +// code_execution writes its parent record through the same seam under a +// synthetic server id. +func TestRecordToolCallBoundsCodeExecutionBucket(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(2048, 0) + + require.NoError(t, mgr.RecordToolCall(bigToolCall("exec-1", "code_execution", 300_000))) + + stored, err := mgr.GetServerToolCalls("code_execution", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + assert.True(t, stored[0].ResponseTruncated) +} + +// registerServer stores a server and its identity, and returns the identity ID +// the tool-call bucket is actually keyed by. +// +// Using the ID rather than the name is load-bearing in these tests. mcp.go +// records with `ServerID: serverID` — the SHA-256 GenerateServerID computes +// from the server's attributes — never with the name. A test that passes the +// NAME as the ServerID makes the bucket key and the configured name identical, +// so a sweep comparing the two looks correct while deleting every live history +// in production. That is exactly what a live run caught. +func registerServer(t *testing.T, mgr *Manager, name string) string { + t.Helper() + cfg := &config.ServerConfig{Name: name, URL: "http://" + name, Protocol: "http", Enabled: true} + require.NoError(t, mgr.SaveUpstreamServer(cfg)) + identity, err := mgr.RegisterServerIdentity(cfg, "/tmp/mcp_config.json") + require.NoError(t, err) + require.NotEqual(t, name, identity.ID, "the identity ID must not be the server name, or this test proves nothing") + return identity.ID +} + +// Deleting a server used to leave its whole call history behind: the store had +// twelve Delete* helpers and the deletion path invoked none of them. +func TestDeleteUpstreamServerDropsToolCallHistory(t *testing.T) { + mgr := newBoundsManager(t) + + id := registerServer(t, mgr, "srv") + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", id, 10))) + + before, err := mgr.GetServerToolCalls(id, 10) + require.NoError(t, err) + require.Len(t, before, 1) + + require.NoError(t, mgr.DeleteUpstreamServer("srv")) + + after, err := mgr.GetServerToolCalls(id, 10) + require.NoError(t, err) + assert.Empty(t, after, "removing a server must not leave its call history behind") +} + +// The sweep takes NAMES but the buckets are keyed by identity, so it has to +// resolve one to the other. Comparing bucket keys against names directly marks +// every live history an orphan — a live run lost a real bucket that way. +func TestPruneOrphanToolCallsResolvesIdentitiesAndKeepsCodeExecution(t *testing.T) { + mgr := newBoundsManager(t) + + keptID := registerServer(t, mgr, "kept") + goneID := registerServer(t, mgr, "gone") + + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", keptID, 10))) + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-2", goneID, 10))) + require.NoError(t, mgr.RecordToolCall(bigToolCall("exec-1", "code_execution", 10))) + + removed, err := mgr.PruneOrphanToolCalls([]string{"kept"}) + require.NoError(t, err) + assert.Equal(t, 1, removed, "only the unconfigured server's history is dropped") + + kept, err := mgr.GetServerToolCalls(keptID, 10) + require.NoError(t, err) + assert.Len(t, kept, 1, "a configured server keeps its history — its bucket is keyed by identity, not by name") + + gone, err := mgr.GetServerToolCalls(goneID, 10) + require.NoError(t, err) + assert.Empty(t, gone) + + exec, err := mgr.GetServerToolCalls(codeExecutionServerID, 10) + require.NoError(t, err) + assert.Len(t, exec, 1, "the synthetic code_execution bucket is never an orphan") +} + +// An empty identity store means "not populated yet", not "every server is +// gone". Sweeping on that reading deletes live data on the next start. +func TestPruneOrphanToolCallsSkipsSweepWithNoIdentities(t *testing.T) { + mgr := newBoundsManager(t) + + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", "0bf5be9861b76413", 10))) + + removed, err := mgr.PruneOrphanToolCalls([]string{"whatever"}) + require.NoError(t, err) + assert.Zero(t, removed, "with no identities recorded the sweep must do nothing") + + stored, err := mgr.GetServerToolCalls("0bf5be9861b76413", 10) + require.NoError(t, err) + assert.Len(t, stored, 1) +} + +// An operator who never configures the limits must still be bounded: the +// setter ignores non-positive values so an unset config cannot silently +// restore unbounded growth (the shape SetMaxResponseSize established in #1174). +func TestToolCallDefaultsApplyWithoutConfiguration(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(0, 0) + + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", "srv", 2*DefaultToolCallMaxResponseSize))) + + stored, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + assert.True(t, stored[0].ResponseTruncated, + "the documented default cap applies when nothing configured one") +} + +// A tool called with a megabyte of input persists that megabyte too: capping +// only the response leaves the record unbounded from the other side. The +// echo-shaped case (arguments ≈ response) makes it twice the intended size. +func TestRecordToolCallCapsOversizedArguments(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(4096, 0) + + rec := bigToolCall("call-1", "srv", 10) + rec.Arguments = map[string]interface{}{"text": strings.Repeat("q", 200_000)} + require.NoError(t, mgr.RecordToolCall(rec)) + + stored, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + + encoded, err := json.Marshal(stored[0].Arguments) + require.NoError(t, err) + assert.Less(t, len(encoded), 50_000, "200KB of arguments must not be persisted whole under a 4KB cap") + assert.Equal(t, true, stored[0].Arguments["truncated"]) + assert.NotEmpty(t, stored[0].Arguments["preview"]) + + assert.Len(t, rec.Arguments["text"], 200_000, "the caller's arguments map must be untouched") +} + +func TestRecordToolCallKeepsSmallArgumentsVerbatim(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(64*1024, 0) + + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", "srv", 10))) + + stored, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + assert.Equal(t, "/big", stored[0].Arguments["path"], "small arguments are stored verbatim") +} diff --git a/oas/docs.go b/oas/docs.go index 21cfe19ea..c039c50e7 100644 --- a/oas/docs.go +++ b/oas/docs.go @@ -6,7 +6,7 @@ import "github.com/swaggo/swag/v2" const docTemplate = `{ "schemes": {{ marshal .Schemes }}, - "components": {"schemas":{"config.ConcurrencyDefaults":{"description":"ServerConcurrencyDefaults is scope (b) of FR-020: the blanket per-server\ndefault set inherited by every server that does not override a setting.\nAbsent (the default) = no per-server limiting unless a server configures\nit explicitly. File/API-configured only — no env scheme (FR-022).","properties":{"max_concurrent_requests":{"type":"integer"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"}},"type":"object"},"config.Config":{"properties":{"activity_cleanup_interval_min":{"description":"Background cleanup interval in minutes (default: 60)","type":"integer"},"activity_max_records":{"description":"Max records before pruning (default: 100000)","type":"integer"},"activity_max_response_size":{"description":"Response truncation limit in bytes (default: 65536)","type":"integer"},"activity_max_size_mb":{"description":"Max total activity-log size in MB before pruning oldest (default: 256, 0=disabled)","type":"integer"},"activity_retention_days":{"description":"Activity logging settings (RFC-003)","type":"integer"},"aggregate_upstream_prompts":{"description":"AggregateUpstreamPrompts, when true, aggregates every connected upstream\nserver's advertised MCP prompts into mcpproxy's own prompts/list\n(exposed as \"\u003cserver\u003e__\u003cprompt\u003e\"). OFF by default: users are safe by\ndefault and opt in deliberately. EnablePrompts still governs the built-in\nprompts + the prompts capability; this flag gates ONLY the upstream\naggregation performed by RefreshPrompts. Hot-reloadable.","type":"boolean"},"allow_private_registry_fetch":{"description":"AllowPrivateRegistryFetch opts out of the registry SSRF guard (MCP-1076,\nCWE-918). By default (false) registry fetches refuse any host that is — or\nresolves to — a non-routable address (loopback, RFC1918/CGNAT private,\nlink-local incl. the 169.254.169.254 cloud-metadata endpoint), so a\nmalicious or typo'd registry source cannot turn the daemon into a\nrequest-forgery vector against internal services.\n\nThis opt-out is BLANKET (all-or-nothing): setting it true disables the\nguard for EVERY non-routable range at once — loopback, RFC1918/CGNAT\nprivate, link-local AND the 169.254.169.254 cloud-metadata endpoint. There\nis no way to allow only loopback; enabling it for a localhost dev registry\nalso re-opens the cloud-metadata SSRF vector. Set true ONLY when you\nintentionally run a trusted registry mirror on an internal/private address,\nideally on a host with no cloud-metadata exposure. The change takes effect\nonly on daemon (re)start or config reload.","type":"boolean"},"allow_server_add":{"type":"boolean"},"allow_server_remove":{"type":"boolean"},"api_key":{"description":"Security settings","type":"string"},"call_tool_timeout":{"type":"string"},"check_server_repo":{"description":"Repository detection settings","type":"boolean"},"code_execution_max_parallel":{"description":"Default concurrency for call_tools() batches (1-32, default: 8)","type":"integer"},"code_execution_max_tool_calls":{"description":"Max tool calls per execution (0 = unlimited, default: 0)","type":"integer"},"code_execution_pool_size":{"description":"JavaScript runtime pool size (default: 10)","type":"integer"},"code_execution_timeout_ms":{"description":"Timeout in milliseconds (default: 120000, max: 600000)","type":"integer"},"data_dir":{"type":"string"},"debug_search":{"type":"boolean"},"direct_tool_response_mode":{"description":"DirectToolResponseMode selects the serialization of the DIRECT\nenumeration surface (Spec 102). Valid values: \"\" (= full), \"full\"\n(default: today's schema-bearing entries), \"deferred\" (description +\ncompact signature, with a minimal permissive input schema; upstream\ninputSchema and outputSchema are stripped and recovered on demand via\ndescribe_tool).\n\nDeliberately NOT an extension of tool_response_mode: reusing that axis\nwould silently change /mcp/all output for every deployment already\nrunning compact, which FR-015 forbids. Serialization-only — it never\nchanges WHICH tools are listed, only how (FR-008). Hot-reloadable.","type":"string"},"disable_management":{"type":"boolean"},"docker_isolation":{"$ref":"#/components/schemas/config.DockerIsolationConfig"},"docker_recovery":{"$ref":"#/components/schemas/config.DockerRecoveryConfig"},"enable_code_execution":{"description":"Code execution settings","type":"boolean"},"enable_prompts":{"description":"Prompts settings","type":"boolean"},"enable_socket":{"description":"Enable Unix socket/named pipe for local IPC (default: true)","type":"boolean"},"enable_tray":{"description":"Deprecated: EnableTray is unused and has no runtime effect. Kept for backward compatibility.","type":"boolean"},"environment":{"$ref":"#/components/schemas/secureenv.EnvConfig"},"features":{"$ref":"#/components/schemas/config.FeatureFlags"},"forward_proxy_env":{"description":"ForwardProxyEnv opts in to forwarding the ambient HTTP(S)/ALL/NO/FTP proxy\nenvironment variables to spawned stdio upstream servers (MCP-2769). OFF by\ndefault: proxy URLs commonly embed credentials (http://user:pass@proxy), so\nforwarding them to every upstream is a credential-leak risk. When enabled,\nvalues are forwarded with their userinfo (credentials) redacted.","type":"boolean"},"health_check_interval":{"description":"Discovery \u0026 health-check cadence (spec 074, #608). Both are *Duration\ntri-state pointers: nil = inherit the built-in default; a pointer to 0s =\nthe loop is disabled; a positive value = that interval. Defaults live only\nin the resolvers (ResolveHealthCheckInterval / ResolveToolDiscoveryInterval)\nso an unset key behaves exactly as before this feature (SC-005). Validated\nin Validate(): health-check ∈ {0} ∪ [5s,1h]; tool-discovery ∈ {0} ∪ [30s,24h].","type":"string"},"http_idle_timeout":{"description":"HTTPIdleTimeout caps how long an idle keep-alive connection is kept open.\nUnset = 180s. \"0s\" removes the dedicated idle deadline, but net/http then\nfalls back to ReadTimeout — idle is fully unbounded only when\nhttp_read_timeout is also \"0s\". Requires a restart.","type":"string"},"http_read_timeout":{"description":"HTTPReadTimeout caps how long reading a whole request (headers + body)\nmay take. Unset = 120s; \"0s\" disables it. Requires a restart.","type":"string"},"http_write_timeout":{"description":"HTTPWriteTimeout caps how long producing a whole response may take on\nnon-streaming endpoints (REST, Web UI, health). Unset = 120s; \"0s\"\ndisables it globally. MCP and SSE /events routes are exempt by design.","type":"string"},"init_timeout":{"description":"InitTimeout is the global default deadline for an upstream's MCP\n` + "`" + `initialize` + "`" + ` handshake (MCP-3322 / GH #760). *Duration tri-state: nil =\ninherit the built-in 30s default; a positive value = that deadline. A\nper-server InitTimeout overrides this. Resolved by ResolveInitTimeout;\nvalidated to {0} ∪ [1s, 30m] in Validate(). Servers doing legitimate\nfirst-run warmup (cache/index build) before answering ` + "`" + `initialize` + "`" + ` can\nraise this so they are not killed mid-startup.","type":"string"},"instructions":{"description":"Instructions text returned in the MCP initialize response to guide AI agents.\nWhen empty, a built-in default is used that explains retrieve_tools workflow.","type":"string"},"intent_declaration":{"$ref":"#/components/schemas/config.IntentDeclarationConfig"},"listen":{"type":"string"},"logging":{"$ref":"#/components/schemas/config.LogConfig"},"max_concurrent_requests":{"description":"Concurrency limits (spec 093, GH #955). Scope (a) of FR-020: the GLOBAL\nAGGREGATE limiter — one proxy-wide cap on concurrently running upstream\ntool calls, with its own bounded wait queue. Tri-state pointers: absent =\nthe limiter does not exist (default, zero behavior change); an explicit 0\nmax also disables it; positive = that cap. This scope is NEVER a\nper-server inheritance source — per-server values come from\nServerConcurrencyDefaults / the per-server overrides — but a server's\neffective concurrency is bounded by BOTH its own limiter and this one.\nResolved by ResolveGlobalConcurrency; hot-reloadable; overridable via\nMCPPROXY_MAX_CONCURRENT_REQUESTS / _QUEUE_SIZE / _QUEUE_TIMEOUT (FR-022).","type":"integer"},"max_result_size_chars":{"description":"Advertised on every tool as ` + "`" + `_meta.anthropic/maxResultSizeChars` + "`" + `; raises Claude Code's inline-response ceiling from 50k to up to 500k chars. Set to 0 to disable.","type":"integer"},"mcpServers":{"items":{"$ref":"#/components/schemas/config.ServerConfig"},"type":"array","uniqueItems":false},"oauth_expiry_warning_hours":{"description":"Health status settings","type":"number"},"observability":{"$ref":"#/components/schemas/config.ObservabilityConfig"},"output_sanitisation":{"$ref":"#/components/schemas/config.OutputSanitisationConfig"},"output_validation":{"$ref":"#/components/schemas/config.OutputValidationConfig"},"profiles":{"description":"Profiles are optional named, server-scoped views exposed at /mcp/p/\u003cname\u003e\n(Spec 057). Absent/empty is fully supported — /mcp is unchanged and configs\nwithout this key serialize byte-identically (SC-004).","items":{"$ref":"#/components/schemas/config.ProfileConfig"},"type":"array","uniqueItems":false},"quarantine_enabled":{"description":"QuarantineEnabled controls whether quarantine is active. It gates two\nthings together:\n 1. Server-level auto-quarantine for newly added servers (issue #370).\n When true, servers added via the upstream_servers MCP tool or the\n REST API default to quarantined=true; when false, they default to\n quarantined=false. Explicit per-request values always win.\n 2. Tool-level quarantine (Spec 032): per-tool SHA-256 approval of\n tool descriptions/schemas.\nWhen nil (default), quarantine is enabled (secure by default). Set to\nexplicit false to opt out of both. Per-server SkipQuarantine still\napplies for the tool-level check on individual servers.","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"read_only_mode":{"type":"boolean"},"registries":{"description":"Registries configuration for MCP server discovery","items":{"$ref":"#/components/schemas/config.RegistryEntry"},"type":"array","uniqueItems":false},"registries_locked":{"description":"RegistriesLocked is an enterprise stub knob (MCP-866): when true, runtime\nadditions of custom registries (e.g. ` + "`" + `registry add-source` + "`" + `, the REST/MCP\nadd-source surface) are rejected so an administrator can pin the discovery\nsources. Built-in defaults are unaffected. Documented but otherwise inert\nbeyond the add-source rejection.","type":"boolean"},"require_mcp_auth":{"description":"Require authentication on /mcp endpoint (default: false)","type":"boolean"},"reveal_secret_headers":{"description":"RevealSecretHeaders, when true, disables the redaction of the\nsecret-bearing server fields — sensitive header values (Authorization,\nX-API-Key, Cookie, …), env-var secrets, and URL query credentials — in\nresponses from the ` + "`" + `upstream_servers` + "`" + ` MCP tool, the ` + "`" + `/api/v1/servers` + "`" + `\nREST API, and the SSE event stream. It also lets URL secrets echoed\ninto last_error / health.detail through unscrubbed.\n\nDefault false — sensitive values are surfaced masked as\n` + "`" + `••••\u003clast2\u003e (\u003cN\u003e chars)` + "`" + ` (error strings use ` + "`" + `***REDACTED***` + "`" + `) so an\nMCP agent cannot read Bearer tokens / API keys / URL secrets out of\nanother upstream's config (PR #425, issue #872). ${env:…}/${keyring:…}\nreferences are labels, not secrets, and pass through unchanged.\n\nThe Web UI / macOS tray edit forms work without seeing the real\nvalues: PATCH /api/v1/servers/{id} deep-merges (omitted keys are\npreserved, see ` + "`" + `headers_remove` + "`" + ` / ` + "`" + `env_remove` + "`" + ` for explicit\ndeletes), so clients compute a diff and only send the keys that\nactually changed. Redacted-but-unchanged values never round-trip\n— the backend keeps the real string. Set this to true if a\ndownstream tool genuinely needs raw values in the response.","type":"boolean"},"routing_mode":{"description":"Routing mode (Spec 031): how MCP tools are exposed to clients\nValid values: \"retrieve_tools\" (default), \"direct\", \"code_execution\"","type":"string"},"security":{"$ref":"#/components/schemas/config.SecurityConfig"},"sensitive_data_detection":{"$ref":"#/components/schemas/config.SensitiveDataDetectionConfig"},"server_concurrency_defaults":{"$ref":"#/components/schemas/config.ConcurrencyDefaults"},"telemetry":{"$ref":"#/components/schemas/config.TelemetryConfig"},"tls":{"$ref":"#/components/schemas/config.TLSConfig"},"tokenizer":{"$ref":"#/components/schemas/config.TokenizerConfig"},"tool_discovery_interval":{"type":"string"},"tool_response_limit":{"type":"integer"},"tool_response_mode":{"description":"Tool response mode (Spec 085): how retrieve_tools serializes results.\nValid values: \"\" (= full), \"full\" (default: today's schema-bearing\nentries), \"compact\" (signature + first-sentence entries). Orthogonal to\nrouting_mode — routing_mode selects the tool SURFACE, this selects the\nSERIALIZATION within the retrieve_tools surface. Serialization-only: it\nnever affects the query, ranking, or result set. Hot-reloadable.","type":"string"},"tool_response_session_risk_warning":{"description":"ToolResponseSessionRiskWarning controls whether the prose ` + "`" + `warning` + "`" + ` field\nis included in the ` + "`" + `session_risk` + "`" + ` object returned by ` + "`" + `retrieve_tools` + "`" + `.\nThe structured fields (level, lethal_trifecta, has_open_world_tools, etc.)\nare always included. Default: false (quiet for LLM clients) — see issue #406.\nMost tools lack annotations, so the MCP-spec defaults treat them as fully\npermissive across all three risk axes, which makes the prose warning fire\non almost every call and wastes tokens.","type":"boolean"},"tools_limit":{"type":"integer"},"toon_min_savings_pct":{"description":"ToonMinSavingsPct is the minimum byte-savings percentage (validated\n1-90; 0/unset → 15) the complete TOON emission (marker + hint + body)\nmust achieve over the exact passthrough emission for adaptive mode to\nencode a block. Byte savings approximate token savings for the tabular\npayload class; the spec-083 profiler reports true token deltas.\nGlobal-only (no per-server override, FR-001).","type":"integer"},"toon_output":{"description":"ToonOutput selects the TOON encoding mode for call_tool_* result text\nblocks (spec 084): \"off\" (default — responses byte-identical to\npre-feature behavior), \"adaptive\" (encode only tabular-uniform payloads\nthat beat compact JSON by ToonMinSavingsPct), or \"always\"\n(benchmark/debug only — encodes every JSON-parseable block and can\nINCREASE token cost). Per-server override: ServerConfig.ToonOutput.\nResolved by ResolveToonOutput; hot-reloadable.","type":"string"},"top_k":{"description":"Deprecated: TopK is superseded by ToolsLimit and has no runtime effect. Kept for backward compatibility.","type":"integer"},"tray_endpoint":{"description":"Tray endpoint override (unix:// or npipe://)","type":"string"},"trusted_hosts":{"description":"TrustedHosts lists non-loopback Host header values accepted on loopback\nlisteners (GH #898). DNS-rebinding protection rejects requests whose Host\nheader is not a loopback address when mcpproxy listens on loopback; a\nreverse proxy (nginx → 127.0.0.1) forwarding the public domain in Host\ntrips it. Entries are hostnames, case-insensitive; an entry without a\nport matches any port, with a port it must match exactly; a leading dot\n(\".example.com\") is a subdomain wildcard. The single entry \"*\" disables\nHost and Origin validation entirely. The same list also validates the\nOrigin header when present (MCP spec DNS-rebinding defense). Empty\n(default) keeps full protection. Env override: MCPPROXY_TRUSTED_HOSTS\n(comma-separated).","items":{"type":"string"},"type":"array","uniqueItems":false},"update_check":{"$ref":"#/components/schemas/config.UpdateCheckConfig"}},"type":"object"},"config.CustomPattern":{"properties":{"category":{"description":"Category (defaults to \"custom\")","type":"string"},"keywords":{"description":"Keywords to match (mutually exclusive with Regex)","items":{"type":"string"},"type":"array","uniqueItems":false},"name":{"description":"Unique identifier for this pattern","type":"string"},"regex":{"description":"Regex pattern (mutually exclusive with Keywords)","type":"string"},"severity":{"description":"Risk level: critical, high, medium, low","type":"string"}},"type":"object"},"config.DeepScanConfig":{"description":"DeepScan is the opt-in \"deep scan\" layer (Spec 077 US3). It subsumes the\ndeprecated top-level scanner_fetch_package_source / scanner_disable_no_new_privileges\nkeys (migrated on load) and gates the heavy Docker-based scanners + source\nextraction. Disabled by default (FR-006): only the deterministic in-process\nbaseline scanner runs. A deep-scan failure NEVER changes the baseline verdict\n(FR-007/FR-008).","properties":{"disable_no_new_privileges":{"description":"DisableNoNewPrivileges, when true, omits the ` + "`" + `--security-opt\nno-new-privileges` + "`" + ` flag from scanner container runs (snap-docker/AppArmor\nescape hatch). Absorbs the deprecated top-level\nscanner_disable_no_new_privileges. Default false.","type":"boolean"},"enabled":{"description":"Enabled is the master opt-in for the heavy layer (FR-006). Default false.","type":"boolean"},"fetch_package_source":{"description":"FetchPackageSource controls whether the scanner fetches the PUBLISHED\nsource of package-runner servers (npx/uvx) — without executing it — when\nno local source is available. Absorbs the deprecated top-level\nscanner_fetch_package_source. Default (nil) is ENABLED within deep scan.","type":"boolean"},"scanners":{"description":"Scanners optionally restricts which deep scanners may run under the\numbrella (by scanner id). Empty ⇒ all enabled deep scanners are eligible.","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.DockerIsolationConfig":{"description":"Docker isolation settings","properties":{"cpu_limit":{"description":"CPU limit for containers","type":"string"},"default_images":{"additionalProperties":{"type":"string"},"description":"Map of runtime type to Docker image","type":"object"},"enable_cache_volume":{"description":"Mount shared cache volumes for faster restarts (default: true)","type":"boolean"},"enabled":{"description":"Global enable/disable for Docker isolation (legacy; superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments","items":{"type":"string"},"type":"array","uniqueItems":false},"log_driver":{"description":"Docker log driver (default: json-file)","type":"string"},"log_max_files":{"description":"Maximum number of log files (default: 3)","type":"string"},"log_max_size":{"description":"Maximum size of log files (default: 100m)","type":"string"},"memory_limit":{"description":"Memory limit for containers","type":"string"},"mode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"network_mode":{"description":"Docker network mode (default: bridge)","type":"string"},"registry":{"description":"Custom registry (defaults to docker.io)","type":"string"},"timeout":{"description":"Container startup timeout","type":"string"}},"type":"object"},"config.DockerRecoveryConfig":{"description":"Docker recovery settings","properties":{"enabled":{"description":"Enable Docker recovery monitoring (default: true)","type":"boolean"},"max_retries":{"description":"Maximum retry attempts (0 = unlimited)","type":"integer"},"notify_on_failure":{"description":"Show notification on recovery failure (default: true)","type":"boolean"},"notify_on_retry":{"description":"Show notification on each retry (default: false)","type":"boolean"},"notify_on_start":{"description":"Show notification when recovery starts (default: true)","type":"boolean"},"notify_on_success":{"description":"Show notification on successful recovery (default: true)","type":"boolean"},"persistent_state":{"description":"Save recovery state across restarts (default: true)","type":"boolean"}},"type":"object"},"config.FeatureFlags":{"description":"Deprecated: Features flags are unused and have no runtime effect. Kept for backward compatibility.","properties":{"enable_async_storage":{"type":"boolean"},"enable_caching":{"type":"boolean"},"enable_contract_tests":{"type":"boolean"},"enable_debug_logging":{"description":"Development features","type":"boolean"},"enable_docker_isolation":{"type":"boolean"},"enable_event_bus":{"type":"boolean"},"enable_health_checks":{"type":"boolean"},"enable_metrics":{"type":"boolean"},"enable_oauth":{"description":"Security features","type":"boolean"},"enable_observability":{"description":"Observability features","type":"boolean"},"enable_quarantine":{"type":"boolean"},"enable_runtime":{"description":"Runtime features","type":"boolean"},"enable_search":{"description":"Storage features","type":"boolean"},"enable_sse":{"type":"boolean"},"enable_tracing":{"type":"boolean"},"enable_tray":{"type":"boolean"},"enable_web_ui":{"description":"UI features","type":"boolean"}},"type":"object"},"config.IntentDeclarationConfig":{"description":"Intent declaration settings (Spec 018)","properties":{"strict_server_validation":{"description":"StrictServerValidation controls whether server annotation mismatches\ncause rejection (true) or just warnings (false).\nDefault: true (reject mismatches)","type":"boolean"}},"type":"object"},"config.IsolationConfig":{"description":"Per-server isolation settings","properties":{"enabled":{"description":"Enable Docker isolation for this server (nil = inherit global; legacy, superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments for this server","items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"description":"Custom Docker image (overrides default)","type":"string"},"log_driver":{"description":"Docker log driver override for this server","type":"string"},"log_max_files":{"description":"Maximum number of log files override","type":"string"},"log_max_size":{"description":"Maximum size of log files override","type":"string"},"mode":{"$ref":"#/components/schemas/config.IsolationMode"},"network_mode":{"description":"Custom network mode for this server","type":"string"},"working_dir":{"description":"Custom working directory in container","type":"string"}},"type":"object"},"config.IsolationMode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"config.LogConfig":{"description":"Logging configuration","properties":{"compress":{"type":"boolean"},"enable_console":{"type":"boolean"},"enable_file":{"type":"boolean"},"filename":{"type":"string"},"json_format":{"type":"boolean"},"level":{"type":"string"},"log_dir":{"description":"Custom log directory","type":"string"},"max_age":{"description":"days","type":"integer"},"max_backups":{"description":"number of backup files","type":"integer"},"max_size":{"description":"MB","type":"integer"}},"type":"object"},"config.MetricsExporterConfig":{"description":"Metrics gates the Prometheus /metrics scrape endpoint (MCP-32). Disabled\nby default — operators opt in for k8s/enterprise deployments.","properties":{"enabled":{"description":"Enabled exposes /metrics on the existing HTTP listener when true.","type":"boolean"}},"type":"object"},"config.OAuthConfig":{"description":"OAuth configuration (keep even when empty to signal OAuth requirement)","properties":{"client_id":{"type":"string"},"client_secret":{"type":"string"},"extra_params":{"additionalProperties":{"type":"string"},"description":"Additional OAuth parameters (e.g., RFC 8707 resource)","type":"object"},"pkce_enabled":{"type":"boolean"},"redirect_uri":{"type":"string"},"scopes":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ObservabilityConfig":{"description":"Observability settings (Spec 069): usage aggregate cache/persistence cadence.","properties":{"metrics":{"$ref":"#/components/schemas/config.MetricsExporterConfig"},"tracing":{"$ref":"#/components/schemas/config.TracingExporterConfig"},"usage_cache_ttl":{"description":"UsageCacheTTL bounds the freshness of the usage endpoint's read cache for\nwide windows (FR-005). Default 5s.","type":"string"},"usage_persist_interval":{"description":"UsagePersistInterval is how often the actor-owned usage aggregate snapshot\nis flushed to storage. Default 30s.","type":"string"}},"type":"object"},"config.OutputSanitisationConfig":{"description":"Output sanitisation settings (Spec 054 Track B)","properties":{"max_redactions":{"description":"cap on redactions per response; default 100","type":"integer"},"response_action":{"description":"\"spotlight\" | \"redact\" | \"block\"; default \"spotlight\"","type":"string"},"spotlight_untrusted":{"description":"wrap untrusted output in spotlight markers; default true","type":"boolean"},"strip_classes":{"description":"classes to strip: ansi/c0c1/bidi/zero_width","items":{"type":"string"},"type":"array","uniqueItems":false},"strip_control_chars":{"description":"strip control-character classes; default false","type":"boolean"}},"type":"object"},"config.OutputValidationConfig":{"description":"Output-schema validation settings (Spec 056)","properties":{"max_bytes":{"description":"structured payload byte cap; default 5\u003c\u003c20","type":"integer"},"max_depth":{"description":"nesting depth cap; default 64","type":"integer"},"missing_structured_content":{"description":"\"allow\" | \"block\"; default \"allow\"","type":"string"},"mode":{"description":"\"off\" | \"warn\" | \"strict\"; default \"warn\"","type":"string"}},"type":"object"},"config.ProfileConfig":{"properties":{"name":{"description":"URL slug, validated","type":"string"},"servers":{"description":"references to mcpServers[].name","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.RegistryEntry":{"properties":{"count":{"description":"number or string","type":"string"},"description":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"},"protocol":{"type":"string"},"provenance":{"description":"Provenance is the trust tag for this registry (MCP-866):\nRegistryProvenanceOfficial for built-in defaults, RegistryProvenanceCustom\nfor user-added registries. It is authoritatively (re)computed by the\nregistries merge from whether the ID is a shipped default — a user cannot\nclaim \"official\" by writing it into their config.","type":"string"},"requires_key":{"description":"RequiresKey marks a registry that needs an API key to be queried. When\ntrue and no key is configured, the registry is skipped/marked unavailable\nrather than failing the whole search (FR-008).","type":"boolean"},"servers_url":{"type":"string"},"tags":{"items":{"type":"string"},"type":"array","uniqueItems":false},"url":{"type":"string"}},"type":"object"},"config.SecurityConfig":{"description":"Security scanner settings (Spec 039)","properties":{"auto_baseline_scan":{"description":"AutoBaselineScan is the kill-switch for the AUTOMATIC, informational\nPass-1 baseline scan: the free in-process TPA scan mcpproxy runs for every\nnewly admitted server (any trust mode) and, once per installation, over\npre-existing servers that have never been scanned.\n\nInformational ONLY: the resulting verdict populates the security badge and\nthe scan summary, and NEVER gates quarantine or approval. The\ntrust_mode:\"scan\" admission gate is a separate path and is unaffected by\nthis flag.\n\nDefault (nil) is ENABLED. Set to false to suppress every automatic scan\n(manual scans keep working). Env override: MCPPROXY_AUTO_BASELINE_SCAN,\nwhich wins over this field on every path.","type":"boolean"},"deep_scan":{"$ref":"#/components/schemas/config.DeepScanConfig"},"integrity_check_interval":{"type":"string"},"integrity_check_on_restart":{"type":"boolean"},"runtime_read_only":{"type":"boolean"},"runtime_tmpfs_size":{"type":"string"},"scan_timeout_default":{"type":"string"},"scanner_disable_no_new_privileges":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.DisableNoNewPrivileges\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.IsDisableNoNewPrivileges. Cleared after migration.\n\nScannerDisableNoNewPrivileges, when true, omits the\n` + "`" + `--security-opt no-new-privileges` + "`" + ` flag from scanner container runs.\n\nBackground: snap-installed Docker on Ubuntu confines dockerd under the\n` + "`" + `snap.docker.dockerd` + "`" + ` AppArmor profile. When runc tries to transition\nthe container into the inner ` + "`" + `docker-default` + "`" + ` profile to exec the\nentrypoint, AppArmor refuses the transition because NO_NEW_PRIVS\nforbids privilege/profile changes on exec — the result is EPERM\n(\"operation not permitted\") and every scanner fails immediately.\n\nSet this to true ONLY on hosts hitting that incompatibility. Scanner\ncontainers still run with read-only rootfs, tmpfs /tmp, no-network by\ndefault, and read-only source mounts, so the marginal isolation loss\nis small. The preferred fix remains replacing snap docker with a\ndistro-packaged docker.","type":"boolean"},"scanner_fetch_package_source":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.FetchPackageSource\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.EffectiveFetchPackageSource. Cleared after migration.\n\nScannerFetchPackageSource controls whether the scanner fetches the\nPUBLISHED source of package-runner servers (npx/uvx) — without executing\nit — when no local source is available (no Docker container, no local\npackage cache, no working_dir). This is the primary quarantine/scan\ntarget: a quarantined-on-add server is never run locally, so without this\nthe scan degrades to tool-definitions-only (no real source-level\nanalysis). See MCP-2206.\n\nFetching uses ` + "`" + `npm pack --ignore-scripts` + "`" + ` (npm) and ` + "`" + `uv pip download` + "`" + ` /\n` + "`" + `pip download` + "`" + ` with ` + "`" + `--only-binary=:all:` + "`" + ` (Python), which only download +\nunpack archives and NEVER run install, build, or setup.py — a scanner must\nnot execute the untrusted code it is scanning. The Python\n` + "`" + `--only-binary=:all:` + "`" + ` flag is required because downloading an sdist would\ninvoke its build backend (setup.py); packages with no wheel fall back to\ntool-definitions-only instead. Extraction is hardened against path\ntraversal and decompression bombs.\n\nDefault (nil) is ENABLED. Set to false on air-gapped deployments to\nforbid the scanner's network egress; such servers then fall back to the\ntool-definitions-only scan with no regression.","type":"boolean"},"scanner_registry_url":{"type":"string"},"tpa_bundle_path":{"description":"TPABundlePath is the filesystem path to the tpa-db scanner-bundle.json\nthe offline TPA scanner runs (spec 086 FR-019: the signature-DB location\nMUST be configuration-driven, not hardcoded). Empty (the default) runs the\ncorpus embedded in this build.\n\nEnv override: MCPPROXY_TPA_BUNDLE_PATH. Hot-reloadable — the path is\nre-read on every config.reloaded event via\nscanner.Service.ApplySecurityConfig, so a corpus refresh needs no restart.\nA configured bundle that fails to read/parse/version-check/compile is\nREFUSED and the previously active corpus stays live (fail-closed, never\nfail-empty); the reason is logged and surfaced in the security overview's\nsignature_bundle.load_error.","type":"string"}},"type":"object"},"config.SensitiveDataDetectionConfig":{"description":"Sensitive data detection settings (Spec 026)","properties":{"categories":{"additionalProperties":{"type":"boolean"},"description":"Enable/disable specific detection categories","type":"object"},"custom_patterns":{"description":"User-defined detection patterns","items":{"$ref":"#/components/schemas/config.CustomPattern"},"type":"array","uniqueItems":false},"enabled":{"description":"Enable sensitive data detection (default: true)","type":"boolean"},"entropy_threshold":{"description":"Shannon entropy threshold for high-entropy detection (default: 4.5)","type":"number"},"max_payload_size_kb":{"description":"Max size to scan before truncating (default: 1024)","type":"integer"},"scan_requests":{"description":"Scan tool call arguments (default: true)","type":"boolean"},"scan_responses":{"description":"Scan tool responses (default: true)","type":"boolean"},"sensitive_keywords":{"description":"Keywords to flag","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ServerConfig":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve tool\nchanges/additions (disabling per-server rug-pull protection). Supersedes\nskip_quarantine. MCP-2930 only ACCEPTS, persists, and migrates this flag — it\nis NOT yet consulted at runtime; auto-approval is still governed by\nSkipQuarantine until the trust-baseline behavior change (MCP-2931) migrates the\nruntime consumers onto it.\nTri-state pointer (mirrors QuarantineEnabled): nil = unset (inherit/migrate\nfrom legacy skip_quarantine), explicit true/false = honored as-is so an\nexplicit auto_approve_tool_changes:false overrides a legacy skip_quarantine:true.\nRead via IsAutoApproveToolChanges().","type":"boolean"},"command":{"type":"string"},"created":{"type":"string"},"disabled_tools":{"description":"Denylist: these tools are hidden; mutually exclusive with enabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"enabled":{"type":"boolean"},"enabled_tools":{"description":"Allowlist: only these tools are exposed; mutually exclusive with disabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts overrides whether this server's advertised MCP prompts are\naggregated into mcpproxy's prompts/list. nil (default) inherits the\ndefault-aggregate behavior (included if the server advertises\nCapabilities.Prompts); false excludes it regardless of capability.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"description":"For HTTP servers","type":"object"},"health_check_interval":{"description":"Per-server discovery \u0026 health-check overrides (spec 074). Same *Duration\ntri-state as the global keys: nil = inherit the global value (or default),\npointer to 0s = disabled for this server, positive = that interval.\nHealthCheckInterval is fully wired into the per-server health loop;\nToolDiscoveryInterval is accepted/validated and round-trips for\nforward-compat, but the periodic index sweep is governed by the global\ncadence in this iteration (see spec 074 plan §C).","type":"string"},"init_timeout":{"description":"InitTimeout overrides the global init_timeout for this server's MCP\n` + "`" + `initialize` + "`" + ` handshake deadline (MCP-3322 / GH #760). *Duration tri-state:\nnil = inherit the global value (or 30s default), positive = that deadline.\nResolved by Config.ResolveInitTimeout; validated to {0} ∪ [1s, 30m]. Raise\nthis for upstreams that do legitimate first-run warmup (e.g. caching many\nchannels/users) before responding to ` + "`" + `initialize` + "`" + `.","type":"string"},"isolation":{"$ref":"#/components/schemas/config.IsolationConfig"},"launcher_wait_timeout":{"description":"LauncherWaitTimeout caps how long mcpproxy will wait for a locally-launched\nHTTP/SSE upstream's URL to become reachable after Spawn(). Only consulted\nwhen the server is configured with both Command and an HTTP/SSE URL — i.e.,\nmcpproxy starts the process AND connects via network. Stdio servers ignore\nthis field. Zero or unset → 30s default.","type":"string"},"max_concurrent_requests":{"description":"Per-server concurrency overrides — scope (c) of FR-020 (spec 093, #955).\nTri-state per setting, exactly like HealthCheckInterval: absent = inherit\nthe per-server default set (server_concurrency_defaults), explicit 0 =\ndisable that setting for this server (0 max = no per-server limiter at\nall; 0 queue_size = no pending capacity, shed immediately at the cap),\npositive = override. The global aggregate limiter is never inherited from\nhere — it applies on top, so effective concurrency is min(per-server,\nglobal). Resolved by Config.ResolveServerConcurrency.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/config.OAuthConfig"},"protocol":{"description":"stdio, http, sse, streamable-http, auto","type":"string"},"quarantined":{"description":"Security quarantine status","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets a disconnected server","type":"boolean"},"shared":{"description":"Server edition: shared with all users","type":"boolean"},"skip_quarantine":{"description":"SkipQuarantine is DEPRECATED (MCP-2930): use AutoApproveToolChanges instead.\nKept for back-compat parsing; on config load a legacy skip_quarantine:true is\nmigrated to auto_approve_tool_changes:true only when the new field is unset\n(see normalizeServerQuarantineFlags).","type":"boolean"},"source_registry_id":{"description":"SourceRegistryID records which registry this server was added from (empty\nfor manually-configured servers). MCP-866: surfaced in the approval /\nquarantine view so a reviewer can see a server's origin.","type":"string"},"source_registry_provenance":{"description":"SourceRegistryProvenance records the source registry's provenance at add\ntime (RegistryProvenanceOfficial / RegistryProvenanceCustom). It is purely\ninformational (MCP-1072) — surfaced so a reviewer can see a server's origin\n— and no longer gates quarantine or skip_quarantine.","type":"string"},"tool_discovery_interval":{"type":"string"},"toon_output":{"description":"ToonOutput overrides the global toon_output mode for this server's\ntools (spec 084, FR-001). Plain string, not a pointer: \"\"/absent =\ninherit the global value; \"off\"|\"adaptive\"|\"always\" = override (\"off\"\nis the explicit force-off). Resolved by Config.ResolveToonOutput.","type":"string"},"trust_mode":{"description":"TrustMode is the per-server trust tier: auto|scan|manual. Supersedes\nauto_approve_tool_changes (spec 086). An empty value is derived from the\nlegacy fields at load via normalizeServerQuarantineFlags; the single\nresolution point is EffectiveTrustMode(), which treats an empty or\nunrecognized value as manual (secure by default). Read via\nEffectiveTrustMode(), never the raw string.","type":"string"},"updated":{"type":"string"},"url":{"type":"string"},"working_dir":{"description":"Working directory for stdio servers","type":"string"}},"type":"object"},"config.TLSConfig":{"description":"TLS configuration","properties":{"certs_dir":{"description":"Directory for certificates","type":"string"},"enabled":{"description":"Enable HTTPS","type":"boolean"},"hsts":{"description":"Enable HTTP Strict Transport Security","type":"boolean"},"require_client_cert":{"description":"Enable mTLS","type":"boolean"}},"type":"object"},"config.TelemetryConfig":{"description":"Telemetry settings (Spec 036)","properties":{"anonymous_id":{"description":"Auto-generated UUIDv4","type":"string"},"anonymous_id_created_at":{"description":"Spec 042 (Tier 2) additions — all default-zero, all backwards-compatible.","type":"string"},"enabled":{"description":"Default: true (opt-out)","type":"boolean"},"endpoint":{"description":"Override for testing","type":"string"},"last_reported_version":{"description":"Upgrade funnel","type":"string"},"last_startup_outcome":{"description":"success|port_conflict|db_locked|...","type":"string"},"notice_shown":{"description":"First-run notice flag","type":"boolean"}},"type":"object"},"config.TokenizerConfig":{"description":"Tokenizer configuration for token counting","properties":{"default_model":{"description":"Default model for tokenization (e.g., \"gpt-4\")","type":"string"},"enabled":{"description":"Enable token counting","type":"boolean"},"encoding":{"description":"Default encoding (e.g., \"cl100k_base\")","type":"string"}},"type":"object"},"config.TracingExporterConfig":{"description":"Tracing gates the OpenTelemetry OTLP trace exporter (MCP-32). Disabled by\ndefault.","properties":{"enabled":{"description":"Enabled turns on OTLP trace export for tool calls and upstream hops.","type":"boolean"},"endpoint":{"description":"Endpoint is the collector address as host:port (no scheme), e.g.\n\"localhost:4318\" for http or \"localhost:4317\" for grpc.","type":"string"},"protocol":{"description":"Protocol selects the OTLP transport: \"http\" or \"grpc\".","type":"string"},"sample_rate":{"description":"SampleRate is the head-based trace sampling ratio in [0,1]. Default 0.1.","type":"number"}},"type":"object"},"config.UpdateCheckConfig":{"description":"Update-check settings (Spec 079 FR-012): config-file control of the\nbackground upgrade-awareness checker (internal/updatecheck). nil =\nenabled on the stable channel (existing default behavior). The existing\nenvironment switches keep working and WIN over these keys (FR-014):\nMCPPROXY_DISABLE_AUTO_UPDATE=true force-disables even when\nenabled=true, and MCPPROXY_ALLOW_PRERELEASE_UPDATES=true force-selects\nthe rc channel even when channel=stable.","properties":{"channel":{"description":"Channel selects which releases are offered as updates: \"stable\"\n(default; prereleases never offered) or \"rc\" (prereleases included).\nEmpty resolves to stable. Validated in ValidateDetailed.\n\nNOTE: for a RELEASED build the running binary's own version is\nauthoritative and overrides this field — a stable build is never\noffered an RC (even with channel=rc), and an RC build always tracks the\nrc channel. This field only takes effect on dev/unstamped builds. See\ninternal/updatecheck.Checker.IncludePrereleases.","type":"string"},"enabled":{"description":"Enabled gates all update checking. Tri-state: nil/absent = enabled\n(default true, matching pre-079 behavior). 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Never disclosed to an agent token.","type":"string"},"id":{"type":"string"},"reason":{"$ref":"#/components/schemas/contracts.PreflightReason"},"remediation":{"type":"string"},"retryable":{"type":"boolean"},"status":{"$ref":"#/components/schemas/contracts.PreflightStatus"}},"type":"object"},"contracts.PreflightVerdict":{"type":"string","x-enum-varnames":["PreflightVerdictReady","PreflightVerdictDegradedRetryable","PreflightVerdictBlocked","PreflightVerdictUnknownIDs"]},"contracts.QuarantineStats":{"description":"Tool quarantine metrics for this server","properties":{"blocked_count":{"description":"Number of disabled (blocked) tools","type":"integer"},"changed_count":{"description":"Number of tools whose description/schema changed since approval","type":"integer"},"pending_count":{"description":"Number of newly discovered tools awaiting approval","type":"integer"}},"type":"object"},"contracts.RefreshRegistryResponse":{"properties":{"cleared":{"description":"number of cached entries dropped","type":"integer"},"registry_id":{"type":"string"}},"type":"object"},"contracts.Registry":{"properties":{"count":{"description":"number or string","type":"string"},"description":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"},"protocol":{"type":"string"},"provenance":{"description":"Provenance is the trust tag (MCP-866): \"official/trusted\" for built-in\ndefaults, \"custom/unverified\" for user-added registries.","type":"string"},"servers_url":{"type":"string"},"tags":{"items":{"type":"string"},"type":"array","uniqueItems":false},"trusted":{"description":"Trusted indicates whether this is an official, shipped-by-default\nregistry. Trust is derived from membership in the default set, never\nfrom self-assertion in config.","type":"boolean"},"url":{"type":"string"}},"type":"object"},"contracts.RegistryCacheInfo":{"properties":{"age_seconds":{"type":"number"},"stale":{"type":"boolean"}},"type":"object"},"contracts.RegistryUnavailable":{"properties":{"reason":{"type":"string"}},"type":"object"},"contracts.ReplayToolCallRequest":{"properties":{"arguments":{"description":"Modified arguments for replay","type":"object"}},"type":"object"},"contracts.ReplayToolCallResponse":{"properties":{"error":{"description":"Error if replay failed","type":"string"},"new_call_id":{"description":"ID of the newly created call","type":"string"},"new_tool_call":{"$ref":"#/components/schemas/contracts.ToolCallRecord"},"replayed_from":{"description":"Original call ID","type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.RepositoryInfo":{"description":"Detected package info","properties":{"npm":{"$ref":"#/components/schemas/contracts.NPMPackageInfo"}},"type":"object"},"contracts.RepositoryServer":{"properties":{"connect_url":{"description":"Alternative connection URL","type":"string"},"created_at":{"type":"string"},"description":{"type":"string"},"id":{"type":"string"},"install_cmd":{"description":"Installation command","type":"string"},"name":{"type":"string"},"registry":{"description":"Which registry this came from","type":"string"},"repository_info":{"$ref":"#/components/schemas/contracts.RepositoryInfo"},"source_code_url":{"description":"Source repository URL","type":"string"},"updated_at":{"type":"string"},"url":{"description":"MCP endpoint for remote servers only","type":"string"}},"type":"object"},"contracts.SearchRegistryServersResponse":{"properties":{"cache":{"$ref":"#/components/schemas/contracts.RegistryCacheInfo"},"query":{"type":"string"},"registry_id":{"type":"string"},"servers":{"items":{"$ref":"#/components/schemas/contracts.RepositoryServer"},"type":"array","uniqueItems":false},"tag":{"type":"string"},"total":{"type":"integer"},"unavailable":{"$ref":"#/components/schemas/contracts.RegistryUnavailable"}},"type":"object"},"contracts.SearchResult":{"properties":{"matches":{"type":"integer"},"score":{"type":"number"},"snippet":{"type":"string"},"tool":{"$ref":"#/components/schemas/contracts.Tool"}},"type":"object"},"contracts.SearchToolsResponse":{"properties":{"query":{"type":"string"},"results":{"items":{"$ref":"#/components/schemas/contracts.SearchResult"},"type":"array","uniqueItems":false},"took":{"type":"string"},"total":{"type":"integer"}},"type":"object"},"contracts.SecurityScanSummary":{"description":"Latest security scan results summary","properties":{"deep_scan":{"$ref":"#/components/schemas/contracts.DeepScanDescriptor"},"finding_counts":{"$ref":"#/components/schemas/contracts.FindingCounts"},"last_scan_at":{"type":"string"},"risk_score":{"description":"0-100","type":"integer"},"scanners_failed":{"type":"integer"},"scanners_run":{"description":"Scanner coverage for the primary (baseline) scan pass — informational only.\nSpec 077 US3 (FR-008/FR-014): Status is derived SOLELY from the\ndeterministic baseline findings; a failed Docker deep scanner no longer\ndowngrades a clean verdict. That failure is surfaced via DeepScan instead.","type":"integer"},"scanners_total":{"type":"integer"},"status":{"description":"\"clean\", \"warnings\", \"dangerous\", \"failed\", \"not_scanned\", \"scanning\"","type":"string"}},"type":"object"},"contracts.Server":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"authenticated":{"description":"OAuth authentication status","type":"boolean"},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges mirrors config.ServerConfig.AutoApproveToolChanges\n(MCP-2930): the per-server intent to auto-approve new/changed tools past\nthe trust baseline. Tri-state *bool — nil means \"never set\" (omitted from\nthe payload), so the Web UI toggle (MCP-2932) can distinguish unset from\nan explicit false. Read-only on the GET path; PATCH/POST accept it via\nAddServerRequest.","type":"boolean"},"command":{"type":"string"},"connected":{"type":"boolean"},"connected_at":{"type":"string"},"connecting":{"type":"boolean"},"created":{"type":"string"},"diagnostic":{"$ref":"#/components/schemas/contracts.Diagnostic"},"enabled":{"type":"boolean"},"env":{"additionalProperties":{"type":"string"},"type":"object"},"error_code":{"type":"string"},"expose_prompts":{"description":"ExposePrompts mirrors config.ServerConfig.ExposePrompts (F9): the per-server\nprompt-aggregation override. Tri-state *bool — nil/omitted means \"inherit\ndefault aggregation\". Surfaced on GET so a caller that PATCHed the override\ncan read it back; PATCH/POST accept it via AddServerRequest.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"health":{"$ref":"#/components/schemas/contracts.HealthStatus"},"id":{"type":"string"},"init_timeout":{"description":"InitTimeout mirrors config.ServerConfig.InitTimeout (MCP-3322 / GH #760):\nthe per-server MCP ` + "`" + `initialize` + "`" + ` handshake deadline override. Serialized as\na duration string (e.g. \"120s\"); nil/omitted means \"inherit the global\ndefault\". Surfaced on the GET path so clients can read back a configured\noverride; PATCH/POST accept it via AddServerRequest.","type":"string"},"isolation":{"$ref":"#/components/schemas/contracts.IsolationConfig"},"isolation_defaults":{"$ref":"#/components/schemas/contracts.IsolationDefaults"},"isolation_effective":{"$ref":"#/components/schemas/contracts.IsolationEffective"},"last_error":{"type":"string"},"last_reconnect_at":{"type":"string"},"last_retry_time":{"type":"string"},"max_concurrent_requests":{"description":"Spec 093 (GH #955) — per-server concurrency overrides, scope (c) of\nFR-020. Each setting is tri-state: nil (omitted) means \"inherit\nserver_concurrency_defaults\", 0 disables that setting for this server,\npositive overrides it. Surfaced on the GET path so a caller can read back\nwhat it set; PATCH/POST accept them via AddServerRequest. The effective\nconcurrency for a server is additionally bounded by the global aggregate\nlimiter, which is NOT an inheritance source for these fields.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/contracts.OAuthConfig"},"oauth_status":{"description":"OAuth status: \"authenticated\", \"expired\", \"error\", \"none\"","type":"string"},"protocol":{"type":"string"},"quarantine":{"$ref":"#/components/schemas/contracts.QuarantineStats"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_count":{"type":"integer"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets this disconnected server","type":"boolean"},"retry_count":{"type":"integer"},"retry_stopped":{"description":"RetryStopped reports that automatic reconnection has been given up for\ngood because the failure is deterministic and unrecoverable — a missing\nbinary, an image without the interpreter, an unparseable config (GH\n#1145). It is NOT ordinary exponential backoff, which keeps retrying;\nnothing will happen until the user fixes the config or restarts the\nserver. RetryStoppedCode is the stable MCPX_* code that proved it and\nRetryStoppedReason the catalog message explaining how to fix it. All three\nare omitted for servers that are healthy or still retrying.","type":"boolean"},"retry_stopped_code":{"type":"string"},"retry_stopped_reason":{"type":"string"},"security_scan":{"$ref":"#/components/schemas/contracts.SecurityScanSummary"},"should_retry":{"type":"boolean"},"source_registry_id":{"description":"MCP-901 — registry provenance of an upstream that was added from a\nregistry. SourceRegistryID names the source registry (empty for\nmanually-configured servers); SourceRegistryProvenance is the trust tag\nrecorded at add time (\"official/trusted\" or \"custom/unverified\"). Both\nare projected from config.ServerConfig so the approval/quarantine view\ncan render an \"added from \u003cregistry\u003e · unverified\" origin badge. Optional\nand omitted when empty — clients that pre-date this treat them as absent.","type":"string"},"source_registry_provenance":{"type":"string"},"status":{"type":"string"},"token_expires_at":{"description":"When the OAuth token expires (ISO 8601)","type":"string"},"tool_count":{"type":"integer"},"tool_list_token_size":{"description":"Token size for this server's tools","type":"integer"},"trust_mode":{"description":"TrustMode mirrors config.ServerConfig.TrustMode (spec 086): the per-server\ntrust tier (\"auto\"/\"scan\"/\"manual\"). Surfaced on the GET path so clients can\nread back the persisted mode; PATCH/POST accept it via AddServerRequest.\nOmitted when empty (server predates the field / relies on legacy flags).","type":"string"},"updated":{"type":"string"},"url":{"type":"string"},"user_logged_out":{"description":"True if user explicitly logged out (prevents auto-reconnection)","type":"boolean"},"working_dir":{"type":"string"}},"type":"object"},"contracts.ServerActionResponse":{"properties":{"action":{"type":"string"},"async":{"type":"boolean"},"server":{"type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.ServerStats":{"properties":{"connected_servers":{"type":"integer"},"docker_containers":{"type":"integer"},"quarantined_servers":{"type":"integer"},"token_metrics":{"$ref":"#/components/schemas/contracts.ServerTokenMetrics"},"total_servers":{"type":"integer"},"total_tools":{"type":"integer"}},"type":"object"},"contracts.ServerTokenMetrics":{"properties":{"average_query_result_size":{"description":"Typical retrieve_tools output (tokens)","type":"integer"},"per_server_tool_list_sizes":{"additionalProperties":{"type":"integer"},"description":"Token size per server","type":"object"},"saved_tokens":{"description":"Difference","type":"integer"},"saved_tokens_percentage":{"description":"Percentage saved","type":"number"},"total_server_tool_list_size":{"description":"All upstream tools combined (tokens)","type":"integer"}},"type":"object"},"contracts.SuccessResponse":{"properties":{"data":{"type":"object"},"success":{"type":"boolean"}},"type":"object"},"contracts.TokenMetrics":{"description":"Token usage metrics (nil for older records)","properties":{"encoding":{"description":"Encoding used (e.g., cl100k_base)","type":"string"},"estimated_cost":{"description":"Optional cost estimate","type":"number"},"input_tokens":{"description":"Tokens in the request","type":"integer"},"model":{"description":"Model used for tokenization","type":"string"},"output_tokens":{"description":"Tokens in the response","type":"integer"},"total_tokens":{"description":"Total tokens (input + output)","type":"integer"},"truncated_tokens":{"description":"Tokens removed by truncation","type":"integer"},"was_truncated":{"description":"Whether response was truncated","type":"boolean"}},"type":"object"},"contracts.Tool":{"properties":{"annotations":{"$ref":"#/components/schemas/contracts.ToolAnnotation"},"approval_status":{"type":"string"},"config_denied":{"description":"ConfigDenied is true when the tool is denied by the server's static\nenabled_tools / disabled_tools config. The user cannot override this toggle.","type":"boolean"},"description":{"type":"string"},"disabled":{"description":"Disabled mirrors ToolApprovalRecord.Disabled so per-tool enable state is\navailable without a second round-trip to the approvals endpoint. Absent\nin the JSON when false (default) to keep responses compact.","type":"boolean"},"hash":{"description":"Hash is the tool's current stored hash rendered in the preflight pin\nformat \"sha256/v{N}:{hex}\" (Spec 098 FR-011), where N is the approval\nrecord's HashSchemaVersion. It is the authoring surface for\n` + "`" + `POST /api/v1/preflight` + "`" + ` pins and ` + "`" + `mcpproxy tools preflight --pin` + "`" + `:\ncopy the value straight into a pin.\n\nDisclosure is OPERATOR TIER ONLY — same rule as the preflight per-tool\nresult. The field is omitted for agent-token callers and for tools with\nno stored hash (no approval record yet, or a record written before\nhashes existed).","type":"string"},"held_reason":{"description":"HeldReason, HeldVerdict and HeldSignals mirror the same-named fields on\nstorage.ToolApprovalRecord: the offline-scan evidence that made\ntrust_mode: scan hold this tool for review (spec 086 FR-018). HeldSignals\nnames the matched deterministic check ids, e.g.\n\"tpa.TPA-2026-0001.hidden_instruction\", so a reviewer can see WHY the tool\nis held. All three are omitted for tools that are not held by the scan gate\n(including every record written before the field existed).","type":"string"},"held_signals":{"items":{"type":"string"},"type":"array","uniqueItems":false},"held_verdict":{"type":"string"},"last_used":{"type":"string"},"name":{"type":"string"},"schema":{"type":"object"},"server_name":{"type":"string"},"usage":{"type":"integer"}},"type":"object"},"contracts.ToolAnnotation":{"description":"Tool behavior hints snapshot","properties":{"destructiveHint":{"type":"boolean"},"idempotentHint":{"type":"boolean"},"openWorldHint":{"type":"boolean"},"readOnlyHint":{"type":"boolean"},"title":{"type":"string"}},"type":"object"},"contracts.ToolCallRecord":{"description":"The new tool call record","properties":{"annotations":{"$ref":"#/components/schemas/contracts.ToolAnnotation"},"arguments":{"description":"Tool arguments","type":"object"},"config_path":{"description":"Active config file path","type":"string"},"duration":{"description":"Duration in nanoseconds","type":"integer"},"error":{"description":"Error message (failure only)","type":"string"},"execution_type":{"description":"\"direct\" or \"code_execution\"","type":"string"},"id":{"description":"Unique identifier","type":"string"},"mcp_client_name":{"description":"MCP client name from InitializeRequest","type":"string"},"mcp_client_version":{"description":"MCP client version","type":"string"},"mcp_session_id":{"description":"MCP session identifier","type":"string"},"metrics":{"$ref":"#/components/schemas/contracts.TokenMetrics"},"parent_call_id":{"description":"Links nested calls to parent code_execution","type":"string"},"request_id":{"description":"Request correlation ID","type":"string"},"response":{"description":"Tool response (success only)","type":"object"},"server_id":{"description":"Server identity hash","type":"string"},"server_name":{"description":"Human-readable server name","type":"string"},"timestamp":{"description":"When the call was made","type":"string"},"tool_name":{"description":"Tool name (without server prefix)","type":"string"}},"type":"object"},"contracts.UpdateInfo":{"description":"Update information (if available)","properties":{"available":{"description":"Whether an update is available","type":"boolean"},"behind_summary":{"description":"Spec 079 FR-002 — how far behind the running build is. All four are\nadditive (FR-021) and absent when the delta could not be resolved, in\nwhich case every surface renders its pre-delta wording.","type":"string"},"check_error":{"description":"Error message if update check failed","type":"string"},"checked_at":{"description":"When the update check was performed","type":"string"},"install_channel":{"description":"Detected install channel (homebrew, dmg, deb, rpm, docker, go-install, windows-installer, tarball, unknown) — Spec 079 FR-008","type":"string"},"is_prerelease":{"description":"Whether the latest version is a prerelease","type":"boolean"},"latest_version":{"description":"Latest version available (e.g., \"v1.2.3\")","type":"string"},"nudges_suppressed":{"description":"UI surfaces must stay quiet (CI / non-interactive context); machine-readable fields still report the facts — Spec 079 FR-019","type":"boolean"},"release_url":{"description":"URL to the release page","type":"string"},"releases_behind":{"description":"Releases on the offered channel between the running and offered versions","type":"integer"},"releases_behind_saturated":{"description":"ReleasesBehind is a lower bound: the running build predates the scanned release window","type":"boolean"},"update_command":{"description":"One-line update command for the channel; only set when an update is available and the channel has one — Spec 079 FR-009","type":"string"},"weeks_behind":{"description":"Whole weeks between the two releases' publish dates; 0 is a real value, absent means unknown","type":"integer"}},"type":"object"},"contracts.UpdatePolicy":{"description":"UpdatePolicy is the effective, hot-reloadable update policy (Spec 092\nFR-015). Always present: the ` + "`" + `update` + "`" + ` object above is omitted both when\nupdate checking is disabled AND when no check has produced a result\nyet, so its absence cannot tell a client whether it is allowed to run\nits own (e.g. Sparkle feed) check. This field states the answer.","properties":{"channel":{"description":"Channel is the tracked release channel: \"stable\" or \"rc\".","type":"string"},"enabled":{"description":"Enabled is the effective automatic-check kill switch: update_check.enabled\nwith MCPPROXY_DISABLE_AUTO_UPDATE=true winning over it. A user-initiated\n\"Check for Updates\" stays available regardless.","type":"boolean"},"nudges_suppressed":{"description":"NudgesSuppressed asks UI surfaces to stay quiet (CI / non-interactive)\nwhile machine-readable fields keep reporting the facts.","type":"boolean"}},"type":"object"},"contracts.UpstreamError":{"properties":{"error_message":{"type":"string"},"server_name":{"type":"string"},"timestamp":{"type":"string"}},"type":"object"},"contracts.UsageAggregateResponse":{"properties":{"freshness_ms":{"description":"age of the underlying snapshot in ms","type":"integer"},"generated_at":{"type":"string"},"other":{"$ref":"#/components/schemas/contracts.UsageOtherBucket"},"timeline":{"items":{"$ref":"#/components/schemas/contracts.UsageTimeBucket"},"type":"array","uniqueItems":false},"token_source":{"description":"\"bytes\" (size-based proxy, FR-006)","type":"string"},"tokens_saved":{"description":"echoed from ServerTokenMetrics (FR-007)","type":"integer"},"tokens_saved_percentage":{"type":"number"},"tools":{"items":{"$ref":"#/components/schemas/contracts.UsageToolStat"},"type":"array","uniqueItems":false},"total_calls":{"description":"TotalCalls and TotalErrors are the headline counts for the window: the sum\nof the timeline this same response carries, so the tiles and the histogram\nunder them cannot disagree. They are NOT the sum of Tools — that list is\nlifetime-cumulative, upstream-only and truncated to top-N, and summing it\nclient-side is what made the Usage tab print a third number for the same\n24 hours (audit finding F1, #1046). The population is\nstorage.CountsAsCall, shared with ActivitySummaryResponse.CallCount.\n\nTwo bounds on how exactly this matches the Activity Log's own count.\nBoth are bounded and disclosed, unlike the population mismatch they\nreplace, which was unbounded and silent:\n\n - Window granularity is the timeline's: whole hour buckets, so the span\n is the requested window rounded up to a bucket edge.\n - This response is served from a snapshot behind a short read cache\n (observability.usage_cache_ttl, 5s by default) so the endpoint never\n scans the activity log per request, while the summary endpoint counts\n live. Calls that land inside that window appear on the Activity Log\n first. FreshnessMs and GeneratedAt say how old the figures are, and\n the Usage tab prints it (\"Updated 3s ago\").","type":"integer"},"total_errors":{"type":"integer"},"window":{"type":"string"}},"type":"object"},"contracts.UsageOtherBucket":{"description":"present only when the list was truncated to top-N","properties":{"calls":{"type":"integer"},"tools_folded":{"type":"integer"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.UsageTimeBucket":{"properties":{"calls":{"type":"integer"},"errors":{"type":"integer"},"start":{"type":"string"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.UsageToolStat":{"properties":{"avg_req_bytes":{"description":"null when no sized request calls","type":"integer"},"avg_resp_bytes":{"description":"null when sized_calls == 0 (only legacy 0-byte calls)","type":"integer"},"blocked":{"type":"integer"},"calls":{"type":"integer"},"error_rate":{"type":"number"},"errors":{"type":"integer"},"last_used":{"type":"string"},"p50_exceeds":{"type":"boolean"},"p50_ms":{"description":"P50Ms and P95Ms are read off a fixed latency histogram, so they are BUCKET\nBOUNDS, not measured durations: the true percentile is at or below the\nvalue, and a client must render it as a bound (\"≤ 5 ms\"). P50Exceeds /\nP95Exceeds flip that reading for the unbounded overflow bucket, where the\nvalue is the last bound and the truth is above it (\"\u003e 10 s\").","type":"integer"},"p95_exceeds":{"type":"boolean"},"p95_ms":{"type":"integer"},"rejected":{"description":"spec 093: shed by a concurrency limit; never executed, so excluded from calls/latency","type":"integer"},"server":{"type":"string"},"sized_calls":{"description":"calls with known response size (basis for avg_resp_bytes)","type":"integer"},"tool":{"type":"string"},"total_req_bytes":{"type":"integer"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.ValidateConfigResponse":{"properties":{"errors":{"items":{"$ref":"#/components/schemas/contracts.ValidationError"},"type":"array","uniqueItems":false},"valid":{"type":"boolean"}},"type":"object"},"contracts.ValidationError":{"properties":{"field":{"type":"string"},"message":{"type":"string"}},"type":"object"},"data":{"properties":{"data":{"$ref":"#/components/schemas/contracts.InfoResponse"}},"type":"object"},"httpapi.AddServerRequest":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve\nnew/changed tools past the trust baseline (MCP-2930). Tri-state *bool:\na nil pointer means \"leave unchanged\" on PATCH; a present value\n(including false) is applied. Mirrors config.ServerConfig's *bool\nsemantics — do NOT collapse to a plain bool, or an omitted field would\nsilently reset a previously-set value.","type":"boolean"},"command":{"type":"string"},"enabled":{"type":"boolean"},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts is the per-server override for prompt aggregation (F9):\nwhether this server's advertised MCP prompts are merged into mcpproxy's\nprompts/list. Tri-state *bool mirroring config.ServerConfig.ExposePrompts —\na nil pointer means \"leave unchanged\" on PATCH (and \"inherit the default\naggregate behavior\" on create); a present value (including false) is applied.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"init_timeout":{"description":"InitTimeout is the per-server MCP ` + "`" + `initialize` + "`" + ` handshake deadline override\n(MCP-3322 / GH #760), serialized as a duration string (e.g. \"120s\"). A nil\npointer means \"leave unchanged\" on PATCH; a present value is applied.\nMirrors config.ServerConfig.InitTimeout's *Duration tri-state.","type":"string"},"isolation":{"$ref":"#/components/schemas/httpapi.IsolationRequest"},"max_concurrent_requests":{"description":"MaxConcurrentRequests / QueueSize / QueueTimeout are the per-server\nconcurrency overrides (spec 093 / GH #955, FR-020 scope (c)). Each is\ntri-state: a nil pointer means \"leave unchanged\" on PATCH and \"inherit\nserver_concurrency_defaults\" on create; an explicit 0 disables that\nsetting for this server; a positive value overrides it. Do NOT collapse\nthem to plain values — an omitted field would then silently reset a\nconfigured limit.","type":"integer"},"name":{"type":"string"},"protocol":{"type":"string"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"type":"boolean"},"trust_mode":{"description":"TrustMode is the per-server trust tier (spec 086): \"auto\", \"scan\", or\n\"manual\". Empty means \"leave unchanged\" on PATCH (and inherit the migrated\ndefault on create). A non-empty value is applied to ServerConfig.TrustMode\nand resolved by EffectiveTrustMode (an unrecognized value fails closed to\nmanual). This is the REST seam for changing the trust tier via\nPOST/PATCH /api/v1/servers.","type":"string"},"url":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.CanonicalConfigPath":{"properties":{"description":{"description":"Brief description","type":"string"},"exists":{"description":"Whether the file exists","type":"boolean"},"format":{"description":"Format identifier (e.g., \"claude_desktop\")","type":"string"},"name":{"description":"Display name (e.g., \"Claude Desktop\")","type":"string"},"os":{"description":"Operating system (darwin, windows, linux)","type":"string"},"path":{"description":"Full path to the config file","type":"string"}},"type":"object"},"httpapi.CanonicalConfigPathsResponse":{"properties":{"os":{"description":"Current operating system","type":"string"},"paths":{"description":"List of canonical config paths","items":{"$ref":"#/components/schemas/httpapi.CanonicalConfigPath"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ConnectConflictResponse":{"properties":{"action":{"description":"already_exists | precondition_failed","type":"string"},"data":{"$ref":"#/components/schemas/connect.ConnectResult"},"error":{"description":"Human-readable message","type":"string"},"success":{"description":"Always false","type":"boolean"}},"type":"object"},"httpapi.ConnectRequest":{"properties":{"force":{"description":"Overwrite existing entry","type":"boolean"},"precondition_token":{"description":"PreconditionToken is the opaque token from the preview this write was\nconfirmed against (Spec 091 FR-005). When present, the core rechecks it\nat write time and responds 409 with action \"precondition_failed\" —\nwriting nothing — if the config or the entry MCPProxy would write has\ndrifted since; the caller then re-previews instead of retrying. Absent\nmeans exactly the pre-091 behavior. A replace-classified flow sends this\nTOGETHER with force=true: the token, not the absence of force, is the\noverwrite safety.","type":"string"},"server_name":{"description":"Defaults to \"mcpproxy\"","type":"string"}},"type":"object"},"httpapi.ImportFromPathRequest":{"properties":{"format":{"description":"Optional format hint","type":"string"},"path":{"description":"File path to import from","type":"string"},"rename":{"additionalProperties":{"type":"string"},"description":"Rename maps a server name → new name. Applied after parsing so the\ncaller can disambiguate cross-source name collisions (Spec 046 v2 —\ne.g. \"mcpproxy\" → \"mcpproxy_claude_code\"). Keys are matched against\neither the raw source name (OriginalName) or the sanitized name shown\nin the preview (Server.Name); these differ for names that need\nsanitizing (e.g. \"Figma Desktop\" → \"Figma_Desktop\"). Keys not present\nin the imported set are ignored.","type":"object"},"server_names":{"description":"Optional: import only these servers","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportRequest":{"properties":{"content":{"description":"Raw JSON or TOML content","type":"string"},"format":{"description":"Optional format hint","type":"string"},"server_names":{"description":"Optional: import only these servers","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportResponse":{"properties":{"failed":{"items":{"$ref":"#/components/schemas/configimport.FailedServer"},"type":"array","uniqueItems":false},"format":{"type":"string"},"format_name":{"type":"string"},"imported":{"items":{"$ref":"#/components/schemas/httpapi.ImportedServerResponse"},"type":"array","uniqueItems":false},"skipped":{"items":{"$ref":"#/components/schemas/configimport.SkippedServer"},"type":"array","uniqueItems":false},"summary":{"$ref":"#/components/schemas/configimport.ImportSummary"},"warnings":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportedServerResponse":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"command":{"type":"string"},"fields_skipped":{"items":{"type":"string"},"type":"array","uniqueItems":false},"name":{"type":"string"},"original_name":{"type":"string"},"protocol":{"type":"string"},"source_format":{"type":"string"},"url":{"type":"string"},"warnings":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.IsolationRequest":{"description":"Isolation carries per-server Docker isolation overrides (enabled,\nmode_override, image, network_mode, extra_args, working_dir). A nil\npointer means \"do not touch isolation config\". A present object is\napplied field-by-field ON TOP of the persisted overrides, so omitting a\nfield leaves it alone; clear an individual override by sending it\nexplicitly (` + "`" + `\"enabled\": null` + "`" + `, ` + "`" + `\"image\": \"\"` + "`" + `).","properties":{"enabled":{"description":"Enabled exists ONLY to detect and reject an echoed-back read. It is the\neffective state on the read surface and is never writable; see validate().","type":"boolean"},"enabled_override":{"description":"EnabledOverride is the tri-state per-server override — the RAW value, the\nsame one reads return as ` + "`" + `enabled_override` + "`" + `. It has THREE meaningful wire\nstates, and collapsing them is what silently un-isolated servers\n(GH #1142):\n - absent → leave the persisted override untouched\n - null → clear the override, back to inheriting the global\n - true / false → set an explicit opt-in / opt-out","type":"boolean"},"extra_args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"type":"string"},"mode_override":{"description":"ModeOverride sets ` + "`" + `isolation.mode` + "`" + ` (\"docker\" | \"sandbox\" | \"none\").\nnil leaves the persisted value alone; an empty string clears it. An\nunrecognized value is rejected with a 400 rather than persisted.","type":"string"},"network_mode":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.OnboardingMarkRequest":{"properties":{"connect_step_status":{"description":"ConnectStepStatus is one of: \"\", \"completed\", \"skipped\". Empty\npreserves the existing value. The stored enum is wider (Spec 080\nFR-001): a \"skipped\" request for a previously untouched connect step\nis upgraded server-side to \"completed_external\" when the install\nshows positive evidence of an external connection (Spec 080 FR-002).\n\"completed_external\" is NOT accepted from clients — it must never be\npersisted without that server-verified evidence (edge case: \"never\nguess completed_external without positive evidence\").","type":"string"},"engaged":{"description":"Engaged marks the wizard as engaged (completed or explicitly skipped).\nOnce true, the wizard does not auto-show again.","type":"boolean"},"mark_shown":{"description":"MarkShown records the wizard's first display time if not already set.","type":"boolean"},"server_step_status":{"description":"ServerStepStatus is one of: \"\", \"completed\", \"skipped\". Empty\npreserves the existing value.","type":"string"}},"type":"object"},"httpapi.SetActiveProfileRequest":{"properties":{"active_profile":{"type":"string"},"profile":{"type":"string"}},"type":"object"},"httpapi.UndoConnectRequest":{"properties":{"backup_name":{"description":"BackupName is the bare filename (filepath.Base) of the backup returned as\nbackup_path by the preceding connect — a name, never a path. Undo resolves\nthe full path server-side by joining it with the client's own config\ndirectory, so a client-supplied value can never contribute a directory\ncomponent (traversal is impossible by construction). Empty means the\nconnect created the file (no prior file existed), so undo removes it.","type":"string"},"server_name":{"description":"Defaults to \"mcpproxy\"","type":"string"}},"type":"object"},"httpapi.UpdateFailureRequest":{"properties":{"stage":{"description":"Stage is the failure stage of the update session.","enum":["appcast","download","install","other"],"type":"string"}},"type":"object"},"management.BulkOperationResult":{"properties":{"errors":{"additionalProperties":{"type":"string"},"description":"Map of server name to error message","type":"object"},"failed":{"description":"Number of failed operations","type":"integer"},"successful":{"description":"Number of successful operations","type":"integer"},"total":{"description":"Total servers processed","type":"integer"}},"type":"object"},"observability.HealthResponse":{"properties":{"components":{"items":{"$ref":"#/components/schemas/observability.HealthStatus"},"type":"array","uniqueItems":false},"status":{"description":"\"healthy\" or \"unhealthy\"","type":"string"},"timestamp":{"type":"string"}},"type":"object"},"observability.HealthStatus":{"properties":{"error":{"type":"string"},"latency":{"type":"string"},"name":{"type":"string"},"status":{"description":"\"healthy\" or \"unhealthy\"","type":"string"}},"type":"object"},"observability.ReadinessResponse":{"properties":{"components":{"items":{"$ref":"#/components/schemas/observability.HealthStatus"},"type":"array","uniqueItems":false},"status":{"description":"\"ready\" or \"not_ready\"","type":"string"},"timestamp":{"type":"string"}},"type":"object"},"secureenv.EnvConfig":{"description":"Environment configuration for secure variable filtering","properties":{"allowed_system_vars":{"items":{"type":"string"},"type":"array","uniqueItems":false},"custom_vars":{"additionalProperties":{"type":"string"},"type":"object"},"enhance_path":{"description":"Enable PATH enhancement for Launchd scenarios","type":"boolean"},"forward_proxy_env":{"description":"ForwardProxyEnv opts in to forwarding the ambient HTTP(S)/ALL/NO/FTP proxy\nenvironment variables to spawned upstream servers (MCP-2769). It is OFF by\ndefault and deliberately kept out of the AllowedSystemVars default list:\nproxy URLs frequently carry credentials (http://user:pass@proxy), so\nforwarding them to every stdio upstream is a credential-leak risk. When\nenabled, values are forwarded with their userinfo (credentials) redacted.","type":"boolean"},"inherit_system_safe":{"type":"boolean"}},"type":"object"},"telemetry.FeedbackContext":{"properties":{"arch":{"type":"string"},"connected_server_count":{"type":"integer"},"edition":{"type":"string"},"os":{"type":"string"},"routing_mode":{"type":"string"},"server_count":{"type":"integer"},"version":{"type":"string"}},"type":"object"},"telemetry.FeedbackRequest":{"properties":{"category":{"description":"bug, feature, other","type":"string"},"context":{"$ref":"#/components/schemas/telemetry.FeedbackContext"},"email":{"type":"string"},"message":{"type":"string"}},"type":"object"},"telemetry.FeedbackResponse":{"properties":{"error":{"type":"string"},"issue_url":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}},"securitySchemes":{"ApiKeyAuth":{"description":"API key authentication via query parameter. Use ?apikey=your-key","in":"query","name":"apikey","type":"apiKey"}}}, + "components": {"schemas":{"config.ConcurrencyDefaults":{"description":"ServerConcurrencyDefaults is scope (b) of FR-020: the blanket per-server\ndefault set inherited by every server that does not override a setting.\nAbsent (the default) = no per-server limiting unless a server configures\nit explicitly. File/API-configured only — no env scheme (FR-022).","properties":{"max_concurrent_requests":{"type":"integer"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"}},"type":"object"},"config.Config":{"properties":{"activity_cleanup_interval_min":{"description":"Background cleanup interval in minutes (default: 60)","type":"integer"},"activity_max_records":{"description":"Max records before pruning (default: 100000)","type":"integer"},"activity_max_response_size":{"description":"Response truncation limit in bytes (default: 65536)","type":"integer"},"activity_max_size_mb":{"description":"ActivityMaxSizeMB caps the total activity-log size in MB before the\noldest records are pruned. Omit the key for the 256MB default; set it to\n0 to disable the size cap.","type":"integer"},"activity_retention_days":{"description":"Activity logging settings (RFC-003)","type":"integer"},"aggregate_upstream_prompts":{"description":"AggregateUpstreamPrompts, when true, aggregates every connected upstream\nserver's advertised MCP prompts into mcpproxy's own prompts/list\n(exposed as \"\u003cserver\u003e__\u003cprompt\u003e\"). OFF by default: users are safe by\ndefault and opt in deliberately. EnablePrompts still governs the built-in\nprompts + the prompts capability; this flag gates ONLY the upstream\naggregation performed by RefreshPrompts. Hot-reloadable.","type":"boolean"},"allow_private_registry_fetch":{"description":"AllowPrivateRegistryFetch opts out of the registry SSRF guard (MCP-1076,\nCWE-918). By default (false) registry fetches refuse any host that is — or\nresolves to — a non-routable address (loopback, RFC1918/CGNAT private,\nlink-local incl. the 169.254.169.254 cloud-metadata endpoint), so a\nmalicious or typo'd registry source cannot turn the daemon into a\nrequest-forgery vector against internal services.\n\nThis opt-out is BLANKET (all-or-nothing): setting it true disables the\nguard for EVERY non-routable range at once — loopback, RFC1918/CGNAT\nprivate, link-local AND the 169.254.169.254 cloud-metadata endpoint. There\nis no way to allow only loopback; enabling it for a localhost dev registry\nalso re-opens the cloud-metadata SSRF vector. Set true ONLY when you\nintentionally run a trusted registry mirror on an internal/private address,\nideally on a host with no cloud-metadata exposure. The change takes effect\nonly on daemon (re)start or config reload.","type":"boolean"},"allow_server_add":{"type":"boolean"},"allow_server_remove":{"type":"boolean"},"api_key":{"description":"Security settings","type":"string"},"call_tool_timeout":{"type":"string"},"check_server_repo":{"description":"Repository detection settings","type":"boolean"},"code_execution_max_parallel":{"description":"Default concurrency for call_tools() batches (1-32, default: 8)","type":"integer"},"code_execution_max_tool_calls":{"description":"Max tool calls per execution (0 = unlimited, default: 0)","type":"integer"},"code_execution_pool_size":{"description":"JavaScript runtime pool size (default: 10)","type":"integer"},"code_execution_timeout_ms":{"description":"Timeout in milliseconds (default: 120000, max: 600000)","type":"integer"},"data_dir":{"type":"string"},"debug_search":{"type":"boolean"},"direct_tool_response_mode":{"description":"DirectToolResponseMode selects the serialization of the DIRECT\nenumeration surface (Spec 102). Valid values: \"\" (= full), \"full\"\n(default: today's schema-bearing entries), \"deferred\" (description +\ncompact signature, with a minimal permissive input schema; upstream\ninputSchema and outputSchema are stripped and recovered on demand via\ndescribe_tool).\n\nDeliberately NOT an extension of tool_response_mode: reusing that axis\nwould silently change /mcp/all output for every deployment already\nrunning compact, which FR-015 forbids. Serialization-only — it never\nchanges WHICH tools are listed, only how (FR-008). Hot-reloadable.","type":"string"},"disable_management":{"type":"boolean"},"docker_isolation":{"$ref":"#/components/schemas/config.DockerIsolationConfig"},"docker_recovery":{"$ref":"#/components/schemas/config.DockerRecoveryConfig"},"enable_code_execution":{"description":"Code execution settings","type":"boolean"},"enable_prompts":{"description":"Prompts settings","type":"boolean"},"enable_socket":{"description":"Enable Unix socket/named pipe for local IPC (default: true)","type":"boolean"},"enable_tray":{"description":"Deprecated: EnableTray is unused and has no runtime effect. Kept for backward compatibility.","type":"boolean"},"environment":{"$ref":"#/components/schemas/secureenv.EnvConfig"},"features":{"$ref":"#/components/schemas/config.FeatureFlags"},"forward_proxy_env":{"description":"ForwardProxyEnv opts in to forwarding the ambient HTTP(S)/ALL/NO/FTP proxy\nenvironment variables to spawned stdio upstream servers (MCP-2769). OFF by\ndefault: proxy URLs commonly embed credentials (http://user:pass@proxy), so\nforwarding them to every upstream is a credential-leak risk. When enabled,\nvalues are forwarded with their userinfo (credentials) redacted.","type":"boolean"},"health_check_interval":{"description":"Discovery \u0026 health-check cadence (spec 074, #608). Both are *Duration\ntri-state pointers: nil = inherit the built-in default; a pointer to 0s =\nthe loop is disabled; a positive value = that interval. Defaults live only\nin the resolvers (ResolveHealthCheckInterval / ResolveToolDiscoveryInterval)\nso an unset key behaves exactly as before this feature (SC-005). Validated\nin Validate(): health-check ∈ {0} ∪ [5s,1h]; tool-discovery ∈ {0} ∪ [30s,24h].","type":"string"},"http_idle_timeout":{"description":"HTTPIdleTimeout caps how long an idle keep-alive connection is kept open.\nUnset = 180s. \"0s\" removes the dedicated idle deadline, but net/http then\nfalls back to ReadTimeout — idle is fully unbounded only when\nhttp_read_timeout is also \"0s\". Requires a restart.","type":"string"},"http_read_timeout":{"description":"HTTPReadTimeout caps how long reading a whole request (headers + body)\nmay take. Unset = 120s; \"0s\" disables it. Requires a restart.","type":"string"},"http_write_timeout":{"description":"HTTPWriteTimeout caps how long producing a whole response may take on\nnon-streaming endpoints (REST, Web UI, health). Unset = 120s; \"0s\"\ndisables it globally. MCP and SSE /events routes are exempt by design.","type":"string"},"init_timeout":{"description":"InitTimeout is the global default deadline for an upstream's MCP\n` + "`" + `initialize` + "`" + ` handshake (MCP-3322 / GH #760). *Duration tri-state: nil =\ninherit the built-in 30s default; a positive value = that deadline. A\nper-server InitTimeout overrides this. Resolved by ResolveInitTimeout;\nvalidated to {0} ∪ [1s, 30m] in Validate(). Servers doing legitimate\nfirst-run warmup (cache/index build) before answering ` + "`" + `initialize` + "`" + ` can\nraise this so they are not killed mid-startup.","type":"string"},"instructions":{"description":"Instructions text returned in the MCP initialize response to guide AI agents.\nWhen empty, a built-in default is used that explains retrieve_tools workflow.","type":"string"},"intent_declaration":{"$ref":"#/components/schemas/config.IntentDeclarationConfig"},"listen":{"type":"string"},"logging":{"$ref":"#/components/schemas/config.LogConfig"},"max_concurrent_requests":{"description":"Concurrency limits (spec 093, GH #955). Scope (a) of FR-020: the GLOBAL\nAGGREGATE limiter — one proxy-wide cap on concurrently running upstream\ntool calls, with its own bounded wait queue. Tri-state pointers: absent =\nthe limiter does not exist (default, zero behavior change); an explicit 0\nmax also disables it; positive = that cap. This scope is NEVER a\nper-server inheritance source — per-server values come from\nServerConcurrencyDefaults / the per-server overrides — but a server's\neffective concurrency is bounded by BOTH its own limiter and this one.\nResolved by ResolveGlobalConcurrency; hot-reloadable; overridable via\nMCPPROXY_MAX_CONCURRENT_REQUESTS / _QUEUE_SIZE / _QUEUE_TIMEOUT (FR-022).","type":"integer"},"max_result_size_chars":{"description":"MaxResultSizeChars is advertised on every tool as\n` + "`" + `_meta.anthropic/maxResultSizeChars` + "`" + `; it raises Claude Code's\ninline-response ceiling from 50k to up to 500k chars. Omit the key for\nthe 500000 default; set it to 0 to disable the annotation.","type":"integer"},"mcpServers":{"items":{"$ref":"#/components/schemas/config.ServerConfig"},"type":"array","uniqueItems":false},"oauth_expiry_warning_hours":{"description":"Health status settings","type":"number"},"observability":{"$ref":"#/components/schemas/config.ObservabilityConfig"},"output_sanitisation":{"$ref":"#/components/schemas/config.OutputSanitisationConfig"},"output_validation":{"$ref":"#/components/schemas/config.OutputValidationConfig"},"profiles":{"description":"Profiles are optional named, server-scoped views exposed at /mcp/p/\u003cname\u003e\n(Spec 057). Absent/empty is fully supported — /mcp is unchanged and configs\nwithout this key serialize byte-identically (SC-004).","items":{"$ref":"#/components/schemas/config.ProfileConfig"},"type":"array","uniqueItems":false},"quarantine_enabled":{"description":"QuarantineEnabled controls whether quarantine is active. It gates two\nthings together:\n 1. Server-level auto-quarantine for newly added servers (issue #370).\n When true, servers added via the upstream_servers MCP tool or the\n REST API default to quarantined=true; when false, they default to\n quarantined=false. Explicit per-request values always win.\n 2. Tool-level quarantine (Spec 032): per-tool SHA-256 approval of\n tool descriptions/schemas.\nWhen nil (default), quarantine is enabled (secure by default). Set to\nexplicit false to opt out of both. Per-server SkipQuarantine still\napplies for the tool-level check on individual servers.","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"read_only_mode":{"type":"boolean"},"registries":{"description":"Registries configuration for MCP server discovery","items":{"$ref":"#/components/schemas/config.RegistryEntry"},"type":"array","uniqueItems":false},"registries_locked":{"description":"RegistriesLocked is an enterprise stub knob (MCP-866): when true, runtime\nadditions of custom registries (e.g. ` + "`" + `registry add-source` + "`" + `, the REST/MCP\nadd-source surface) are rejected so an administrator can pin the discovery\nsources. Built-in defaults are unaffected. Documented but otherwise inert\nbeyond the add-source rejection.","type":"boolean"},"require_mcp_auth":{"description":"Require authentication on /mcp endpoint (default: false)","type":"boolean"},"reveal_secret_headers":{"description":"RevealSecretHeaders, when true, disables the redaction of the\nsecret-bearing server fields — sensitive header values (Authorization,\nX-API-Key, Cookie, …), env-var secrets, and URL query credentials — in\nresponses from the ` + "`" + `upstream_servers` + "`" + ` MCP tool, the ` + "`" + `/api/v1/servers` + "`" + `\nREST API, and the SSE event stream. It also lets URL secrets echoed\ninto last_error / health.detail through unscrubbed.\n\nDefault false — sensitive values are surfaced masked as\n` + "`" + `••••\u003clast2\u003e (\u003cN\u003e chars)` + "`" + ` (error strings use ` + "`" + `***REDACTED***` + "`" + `) so an\nMCP agent cannot read Bearer tokens / API keys / URL secrets out of\nanother upstream's config (PR #425, issue #872). ${env:…}/${keyring:…}\nreferences are labels, not secrets, and pass through unchanged.\n\nThe Web UI / macOS tray edit forms work without seeing the real\nvalues: PATCH /api/v1/servers/{id} deep-merges (omitted keys are\npreserved, see ` + "`" + `headers_remove` + "`" + ` / ` + "`" + `env_remove` + "`" + ` for explicit\ndeletes), so clients compute a diff and only send the keys that\nactually changed. Redacted-but-unchanged values never round-trip\n— the backend keeps the real string. Set this to true if a\ndownstream tool genuinely needs raw values in the response.","type":"boolean"},"routing_mode":{"description":"Routing mode (Spec 031): how MCP tools are exposed to clients\nValid values: \"retrieve_tools\" (default), \"direct\", \"code_execution\"","type":"string"},"security":{"$ref":"#/components/schemas/config.SecurityConfig"},"sensitive_data_detection":{"$ref":"#/components/schemas/config.SensitiveDataDetectionConfig"},"server_concurrency_defaults":{"$ref":"#/components/schemas/config.ConcurrencyDefaults"},"telemetry":{"$ref":"#/components/schemas/config.TelemetryConfig"},"tls":{"$ref":"#/components/schemas/config.TLSConfig"},"tokenizer":{"$ref":"#/components/schemas/config.TokenizerConfig"},"tool_call_max_records_per_server":{"description":"Calls retained per server (default: 1000)","type":"integer"},"tool_call_max_response_size":{"description":"Bounds for the per-server tool-call history behind GET /api/v1/tool-calls\n(#1176). It is a recent-debugging window, not an audit log — the activity\nlog is the durable record — and it kept every upstream response whole,\nper server, forever. A non-positive value means \"use the default\", not\n\"disable\": this store must never be unbounded again, so there is\ndeliberately no off switch.","type":"integer"},"tool_discovery_interval":{"type":"string"},"tool_response_limit":{"type":"integer"},"tool_response_mode":{"description":"Tool response mode (Spec 085): how retrieve_tools serializes results.\nValid values: \"\" (= full), \"full\" (default: today's schema-bearing\nentries), \"compact\" (signature + first-sentence entries). Orthogonal to\nrouting_mode — routing_mode selects the tool SURFACE, this selects the\nSERIALIZATION within the retrieve_tools surface. Serialization-only: it\nnever affects the query, ranking, or result set. Hot-reloadable.","type":"string"},"tool_response_session_risk_warning":{"description":"ToolResponseSessionRiskWarning controls whether the prose ` + "`" + `warning` + "`" + ` field\nis included in the ` + "`" + `session_risk` + "`" + ` object returned by ` + "`" + `retrieve_tools` + "`" + `.\nThe structured fields (level, lethal_trifecta, has_open_world_tools, etc.)\nare always included. Default: false (quiet for LLM clients) — see issue #406.\nMost tools lack annotations, so the MCP-spec defaults treat them as fully\npermissive across all three risk axes, which makes the prose warning fire\non almost every call and wastes tokens.","type":"boolean"},"tools_limit":{"type":"integer"},"toon_min_savings_pct":{"description":"ToonMinSavingsPct is the minimum byte-savings percentage (validated\n1-90; 0/unset → 15) the complete TOON emission (marker + hint + body)\nmust achieve over the exact passthrough emission for adaptive mode to\nencode a block. Byte savings approximate token savings for the tabular\npayload class; the spec-083 profiler reports true token deltas.\nGlobal-only (no per-server override, FR-001).","type":"integer"},"toon_output":{"description":"ToonOutput selects the TOON encoding mode for call_tool_* result text\nblocks (spec 084): \"off\" (default — responses byte-identical to\npre-feature behavior), \"adaptive\" (encode only tabular-uniform payloads\nthat beat compact JSON by ToonMinSavingsPct), or \"always\"\n(benchmark/debug only — encodes every JSON-parseable block and can\nINCREASE token cost). Per-server override: ServerConfig.ToonOutput.\nResolved by ResolveToonOutput; hot-reloadable.","type":"string"},"top_k":{"description":"Deprecated: TopK is superseded by ToolsLimit and has no runtime effect. Kept for backward compatibility.","type":"integer"},"tray_endpoint":{"description":"Tray endpoint override (unix:// or npipe://)","type":"string"},"trusted_hosts":{"description":"TrustedHosts lists non-loopback Host header values accepted on loopback\nlisteners (GH #898). DNS-rebinding protection rejects requests whose Host\nheader is not a loopback address when mcpproxy listens on loopback; a\nreverse proxy (nginx → 127.0.0.1) forwarding the public domain in Host\ntrips it. Entries are hostnames, case-insensitive; an entry without a\nport matches any port, with a port it must match exactly; a leading dot\n(\".example.com\") is a subdomain wildcard. The single entry \"*\" disables\nHost and Origin validation entirely. The same list also validates the\nOrigin header when present (MCP spec DNS-rebinding defense). Empty\n(default) keeps full protection. Env override: MCPPROXY_TRUSTED_HOSTS\n(comma-separated).","items":{"type":"string"},"type":"array","uniqueItems":false},"update_check":{"$ref":"#/components/schemas/config.UpdateCheckConfig"}},"type":"object"},"config.CustomPattern":{"properties":{"category":{"description":"Category (defaults to \"custom\")","type":"string"},"keywords":{"description":"Keywords to match (mutually exclusive with Regex)","items":{"type":"string"},"type":"array","uniqueItems":false},"name":{"description":"Unique identifier for this pattern","type":"string"},"regex":{"description":"Regex pattern (mutually exclusive with Keywords)","type":"string"},"severity":{"description":"Risk level: critical, high, medium, low","type":"string"}},"type":"object"},"config.DeepScanConfig":{"description":"DeepScan is the opt-in \"deep scan\" layer (Spec 077 US3). It subsumes the\ndeprecated top-level scanner_fetch_package_source / scanner_disable_no_new_privileges\nkeys (migrated on load) and gates the heavy Docker-based scanners + source\nextraction. Disabled by default (FR-006): only the deterministic in-process\nbaseline scanner runs. A deep-scan failure NEVER changes the baseline verdict\n(FR-007/FR-008).","properties":{"disable_no_new_privileges":{"description":"DisableNoNewPrivileges, when true, omits the ` + "`" + `--security-opt\nno-new-privileges` + "`" + ` flag from scanner container runs (snap-docker/AppArmor\nescape hatch). Absorbs the deprecated top-level\nscanner_disable_no_new_privileges. Default false.","type":"boolean"},"enabled":{"description":"Enabled is the master opt-in for the heavy layer (FR-006). Default false.","type":"boolean"},"fetch_package_source":{"description":"FetchPackageSource controls whether the scanner fetches the PUBLISHED\nsource of package-runner servers (npx/uvx) — without executing it — when\nno local source is available. Absorbs the deprecated top-level\nscanner_fetch_package_source. Default (nil) is ENABLED within deep scan.","type":"boolean"},"scanners":{"description":"Scanners optionally restricts which deep scanners may run under the\numbrella (by scanner id). Empty ⇒ all enabled deep scanners are eligible.","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.DockerIsolationConfig":{"description":"Docker isolation settings","properties":{"cpu_limit":{"description":"CPU limit for containers","type":"string"},"default_images":{"additionalProperties":{"type":"string"},"description":"Map of runtime type to Docker image","type":"object"},"enable_cache_volume":{"description":"Mount shared cache volumes for faster restarts (default: true)","type":"boolean"},"enabled":{"description":"Global enable/disable for Docker isolation (legacy; superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments","items":{"type":"string"},"type":"array","uniqueItems":false},"log_driver":{"description":"Docker log driver (default: json-file)","type":"string"},"log_max_files":{"description":"Maximum number of log files (default: 3)","type":"string"},"log_max_size":{"description":"Maximum size of log files (default: 100m)","type":"string"},"memory_limit":{"description":"Memory limit for containers","type":"string"},"mode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"network_mode":{"description":"Docker network mode (default: bridge)","type":"string"},"registry":{"description":"Custom registry (defaults to docker.io)","type":"string"},"timeout":{"description":"Container startup timeout","type":"string"}},"type":"object"},"config.DockerRecoveryConfig":{"description":"Docker recovery settings","properties":{"enabled":{"description":"Enable Docker recovery monitoring (default: true)","type":"boolean"},"max_retries":{"description":"Maximum retry attempts (0 = unlimited)","type":"integer"},"notify_on_failure":{"description":"Show notification on recovery failure (default: true)","type":"boolean"},"notify_on_retry":{"description":"Show notification on each retry (default: false)","type":"boolean"},"notify_on_start":{"description":"Show notification when recovery starts (default: true)","type":"boolean"},"notify_on_success":{"description":"Show notification on successful recovery (default: true)","type":"boolean"},"persistent_state":{"description":"Save recovery state across restarts (default: true)","type":"boolean"}},"type":"object"},"config.FeatureFlags":{"description":"Deprecated: Features flags are unused and have no runtime effect. Kept for backward compatibility.","properties":{"enable_async_storage":{"type":"boolean"},"enable_caching":{"type":"boolean"},"enable_contract_tests":{"type":"boolean"},"enable_debug_logging":{"description":"Development features","type":"boolean"},"enable_docker_isolation":{"type":"boolean"},"enable_event_bus":{"type":"boolean"},"enable_health_checks":{"type":"boolean"},"enable_metrics":{"type":"boolean"},"enable_oauth":{"description":"Security features","type":"boolean"},"enable_observability":{"description":"Observability features","type":"boolean"},"enable_quarantine":{"type":"boolean"},"enable_runtime":{"description":"Runtime features","type":"boolean"},"enable_search":{"description":"Storage features","type":"boolean"},"enable_sse":{"type":"boolean"},"enable_tracing":{"type":"boolean"},"enable_tray":{"type":"boolean"},"enable_web_ui":{"description":"UI features","type":"boolean"}},"type":"object"},"config.IntentDeclarationConfig":{"description":"Intent declaration settings (Spec 018)","properties":{"strict_server_validation":{"description":"StrictServerValidation controls whether server annotation mismatches\ncause rejection (true) or just warnings (false).\nDefault: true (reject mismatches)","type":"boolean"}},"type":"object"},"config.IsolationConfig":{"description":"Per-server isolation settings","properties":{"enabled":{"description":"Enable Docker isolation for this server (nil = inherit global; legacy, superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments for this server","items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"description":"Custom Docker image (overrides default)","type":"string"},"log_driver":{"description":"Docker log driver override for this server","type":"string"},"log_max_files":{"description":"Maximum number of log files override","type":"string"},"log_max_size":{"description":"Maximum size of log files override","type":"string"},"mode":{"$ref":"#/components/schemas/config.IsolationMode"},"network_mode":{"description":"Custom network mode for this server","type":"string"},"working_dir":{"description":"Custom working directory in container","type":"string"}},"type":"object"},"config.IsolationMode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"config.LogConfig":{"description":"Logging configuration","properties":{"compress":{"type":"boolean"},"enable_console":{"type":"boolean"},"enable_file":{"type":"boolean"},"filename":{"type":"string"},"json_format":{"type":"boolean"},"level":{"type":"string"},"log_dir":{"description":"Custom log directory","type":"string"},"max_age":{"description":"days","type":"integer"},"max_backups":{"description":"number of backup files","type":"integer"},"max_size":{"description":"MB","type":"integer"}},"type":"object"},"config.MetricsExporterConfig":{"description":"Metrics gates the Prometheus /metrics scrape endpoint (MCP-32). Disabled\nby default — operators opt in for k8s/enterprise deployments.","properties":{"enabled":{"description":"Enabled exposes /metrics on the existing HTTP listener when true.","type":"boolean"}},"type":"object"},"config.OAuthConfig":{"description":"OAuth configuration (keep even when empty to signal OAuth requirement)","properties":{"client_id":{"type":"string"},"client_secret":{"type":"string"},"extra_params":{"additionalProperties":{"type":"string"},"description":"Additional OAuth parameters (e.g., RFC 8707 resource)","type":"object"},"pkce_enabled":{"type":"boolean"},"redirect_uri":{"type":"string"},"scopes":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ObservabilityConfig":{"description":"Observability settings (Spec 069): usage aggregate cache/persistence cadence.","properties":{"metrics":{"$ref":"#/components/schemas/config.MetricsExporterConfig"},"tracing":{"$ref":"#/components/schemas/config.TracingExporterConfig"},"usage_cache_ttl":{"description":"UsageCacheTTL bounds the freshness of the usage endpoint's read cache for\nwide windows (FR-005). Default 5s.","type":"string"},"usage_persist_interval":{"description":"UsagePersistInterval is how often the actor-owned usage aggregate snapshot\nis flushed to storage. Default 30s.","type":"string"}},"type":"object"},"config.OutputSanitisationConfig":{"description":"Output sanitisation settings (Spec 054 Track B)","properties":{"max_redactions":{"description":"cap on redactions per response; default 100","type":"integer"},"response_action":{"description":"\"spotlight\" | \"redact\" | \"block\"; default \"spotlight\"","type":"string"},"spotlight_untrusted":{"description":"wrap untrusted output in spotlight markers; default true","type":"boolean"},"strip_classes":{"description":"classes to strip: ansi/c0c1/bidi/zero_width","items":{"type":"string"},"type":"array","uniqueItems":false},"strip_control_chars":{"description":"strip control-character classes; default false","type":"boolean"}},"type":"object"},"config.OutputValidationConfig":{"description":"Output-schema validation settings (Spec 056)","properties":{"max_bytes":{"description":"structured payload byte cap; default 5\u003c\u003c20","type":"integer"},"max_depth":{"description":"nesting depth cap; default 64","type":"integer"},"missing_structured_content":{"description":"\"allow\" | \"block\"; default \"allow\"","type":"string"},"mode":{"description":"\"off\" | \"warn\" | \"strict\"; default \"warn\"","type":"string"}},"type":"object"},"config.ProfileConfig":{"properties":{"name":{"description":"URL slug, validated","type":"string"},"servers":{"description":"references to mcpServers[].name","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.RegistryEntry":{"properties":{"count":{"description":"number or string","type":"string"},"description":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"},"protocol":{"type":"string"},"provenance":{"description":"Provenance is the trust tag for this registry (MCP-866):\nRegistryProvenanceOfficial for built-in defaults, RegistryProvenanceCustom\nfor user-added registries. It is authoritatively (re)computed by the\nregistries merge from whether the ID is a shipped default — a user cannot\nclaim \"official\" by writing it into their config.","type":"string"},"requires_key":{"description":"RequiresKey marks a registry that needs an API key to be queried. When\ntrue and no key is configured, the registry is skipped/marked unavailable\nrather than failing the whole search (FR-008).","type":"boolean"},"servers_url":{"type":"string"},"tags":{"items":{"type":"string"},"type":"array","uniqueItems":false},"url":{"type":"string"}},"type":"object"},"config.SecurityConfig":{"description":"Security scanner settings (Spec 039)","properties":{"auto_baseline_scan":{"description":"AutoBaselineScan is the kill-switch for the AUTOMATIC, informational\nPass-1 baseline scan: the free in-process TPA scan mcpproxy runs for every\nnewly admitted server (any trust mode) and, once per installation, over\npre-existing servers that have never been scanned.\n\nInformational ONLY: the resulting verdict populates the security badge and\nthe scan summary, and NEVER gates quarantine or approval. The\ntrust_mode:\"scan\" admission gate is a separate path and is unaffected by\nthis flag.\n\nDefault (nil) is ENABLED. Set to false to suppress every automatic scan\n(manual scans keep working). Env override: MCPPROXY_AUTO_BASELINE_SCAN,\nwhich wins over this field on every path.","type":"boolean"},"deep_scan":{"$ref":"#/components/schemas/config.DeepScanConfig"},"integrity_check_interval":{"type":"string"},"integrity_check_on_restart":{"type":"boolean"},"runtime_read_only":{"type":"boolean"},"runtime_tmpfs_size":{"type":"string"},"scan_timeout_default":{"type":"string"},"scanner_disable_no_new_privileges":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.DisableNoNewPrivileges\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.IsDisableNoNewPrivileges. Cleared after migration.\n\nScannerDisableNoNewPrivileges, when true, omits the\n` + "`" + `--security-opt no-new-privileges` + "`" + ` flag from scanner container runs.\n\nBackground: snap-installed Docker on Ubuntu confines dockerd under the\n` + "`" + `snap.docker.dockerd` + "`" + ` AppArmor profile. When runc tries to transition\nthe container into the inner ` + "`" + `docker-default` + "`" + ` profile to exec the\nentrypoint, AppArmor refuses the transition because NO_NEW_PRIVS\nforbids privilege/profile changes on exec — the result is EPERM\n(\"operation not permitted\") and every scanner fails immediately.\n\nSet this to true ONLY on hosts hitting that incompatibility. Scanner\ncontainers still run with read-only rootfs, tmpfs /tmp, no-network by\ndefault, and read-only source mounts, so the marginal isolation loss\nis small. The preferred fix remains replacing snap docker with a\ndistro-packaged docker.","type":"boolean"},"scanner_fetch_package_source":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.FetchPackageSource\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.EffectiveFetchPackageSource. Cleared after migration.\n\nScannerFetchPackageSource controls whether the scanner fetches the\nPUBLISHED source of package-runner servers (npx/uvx) — without executing\nit — when no local source is available (no Docker container, no local\npackage cache, no working_dir). This is the primary quarantine/scan\ntarget: a quarantined-on-add server is never run locally, so without this\nthe scan degrades to tool-definitions-only (no real source-level\nanalysis). See MCP-2206.\n\nFetching uses ` + "`" + `npm pack --ignore-scripts` + "`" + ` (npm) and ` + "`" + `uv pip download` + "`" + ` /\n` + "`" + `pip download` + "`" + ` with ` + "`" + `--only-binary=:all:` + "`" + ` (Python), which only download +\nunpack archives and NEVER run install, build, or setup.py — a scanner must\nnot execute the untrusted code it is scanning. The Python\n` + "`" + `--only-binary=:all:` + "`" + ` flag is required because downloading an sdist would\ninvoke its build backend (setup.py); packages with no wheel fall back to\ntool-definitions-only instead. Extraction is hardened against path\ntraversal and decompression bombs.\n\nDefault (nil) is ENABLED. Set to false on air-gapped deployments to\nforbid the scanner's network egress; such servers then fall back to the\ntool-definitions-only scan with no regression.","type":"boolean"},"scanner_registry_url":{"type":"string"},"tpa_bundle_path":{"description":"TPABundlePath is the filesystem path to the tpa-db scanner-bundle.json\nthe offline TPA scanner runs (spec 086 FR-019: the signature-DB location\nMUST be configuration-driven, not hardcoded). Empty (the default) runs the\ncorpus embedded in this build.\n\nEnv override: MCPPROXY_TPA_BUNDLE_PATH. Hot-reloadable — the path is\nre-read on every config.reloaded event via\nscanner.Service.ApplySecurityConfig, so a corpus refresh needs no restart.\nA configured bundle that fails to read/parse/version-check/compile is\nREFUSED and the previously active corpus stays live (fail-closed, never\nfail-empty); the reason is logged and surfaced in the security overview's\nsignature_bundle.load_error.","type":"string"}},"type":"object"},"config.SensitiveDataDetectionConfig":{"description":"Sensitive data detection settings (Spec 026)","properties":{"categories":{"additionalProperties":{"type":"boolean"},"description":"Enable/disable specific detection categories","type":"object"},"custom_patterns":{"description":"User-defined detection patterns","items":{"$ref":"#/components/schemas/config.CustomPattern"},"type":"array","uniqueItems":false},"enabled":{"description":"Enable sensitive data detection (default: true)","type":"boolean"},"entropy_threshold":{"description":"Shannon entropy threshold for high-entropy detection (default: 4.5)","type":"number"},"max_payload_size_kb":{"description":"Max size to scan before truncating (default: 1024)","type":"integer"},"scan_requests":{"description":"Scan tool call arguments (default: true)","type":"boolean"},"scan_responses":{"description":"Scan tool responses (default: true)","type":"boolean"},"sensitive_keywords":{"description":"Keywords to flag","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ServerConfig":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve tool\nchanges/additions (disabling per-server rug-pull protection). Supersedes\nskip_quarantine. MCP-2930 only ACCEPTS, persists, and migrates this flag — it\nis NOT yet consulted at runtime; auto-approval is still governed by\nSkipQuarantine until the trust-baseline behavior change (MCP-2931) migrates the\nruntime consumers onto it.\nTri-state pointer (mirrors QuarantineEnabled): nil = unset (inherit/migrate\nfrom legacy skip_quarantine), explicit true/false = honored as-is so an\nexplicit auto_approve_tool_changes:false overrides a legacy skip_quarantine:true.\nRead via IsAutoApproveToolChanges().","type":"boolean"},"command":{"type":"string"},"created":{"type":"string"},"disabled_tools":{"description":"Denylist: these tools are hidden; mutually exclusive with enabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"enabled":{"type":"boolean"},"enabled_tools":{"description":"Allowlist: only these tools are exposed; mutually exclusive with disabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts overrides whether this server's advertised MCP prompts are\naggregated into mcpproxy's prompts/list. nil (default) inherits the\ndefault-aggregate behavior (included if the server advertises\nCapabilities.Prompts); false excludes it regardless of capability.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"description":"For HTTP servers","type":"object"},"health_check_interval":{"description":"Per-server discovery \u0026 health-check overrides (spec 074). Same *Duration\ntri-state as the global keys: nil = inherit the global value (or default),\npointer to 0s = disabled for this server, positive = that interval.\nHealthCheckInterval is fully wired into the per-server health loop;\nToolDiscoveryInterval is accepted/validated and round-trips for\nforward-compat, but the periodic index sweep is governed by the global\ncadence in this iteration (see spec 074 plan §C).","type":"string"},"init_timeout":{"description":"InitTimeout overrides the global init_timeout for this server's MCP\n` + "`" + `initialize` + "`" + ` handshake deadline (MCP-3322 / GH #760). *Duration tri-state:\nnil = inherit the global value (or 30s default), positive = that deadline.\nResolved by Config.ResolveInitTimeout; validated to {0} ∪ [1s, 30m]. Raise\nthis for upstreams that do legitimate first-run warmup (e.g. caching many\nchannels/users) before responding to ` + "`" + `initialize` + "`" + `.","type":"string"},"isolation":{"$ref":"#/components/schemas/config.IsolationConfig"},"launcher_wait_timeout":{"description":"LauncherWaitTimeout caps how long mcpproxy will wait for a locally-launched\nHTTP/SSE upstream's URL to become reachable after Spawn(). Only consulted\nwhen the server is configured with both Command and an HTTP/SSE URL — i.e.,\nmcpproxy starts the process AND connects via network. Stdio servers ignore\nthis field. Zero or unset → 30s default.","type":"string"},"max_concurrent_requests":{"description":"Per-server concurrency overrides — scope (c) of FR-020 (spec 093, #955).\nTri-state per setting, exactly like HealthCheckInterval: absent = inherit\nthe per-server default set (server_concurrency_defaults), explicit 0 =\ndisable that setting for this server (0 max = no per-server limiter at\nall; 0 queue_size = no pending capacity, shed immediately at the cap),\npositive = override. The global aggregate limiter is never inherited from\nhere — it applies on top, so effective concurrency is min(per-server,\nglobal). Resolved by Config.ResolveServerConcurrency.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/config.OAuthConfig"},"protocol":{"description":"stdio, http, sse, streamable-http, auto","type":"string"},"quarantined":{"description":"Security quarantine status","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets a disconnected server","type":"boolean"},"shared":{"description":"Server edition: shared with all users","type":"boolean"},"skip_quarantine":{"description":"SkipQuarantine is DEPRECATED (MCP-2930): use AutoApproveToolChanges instead.\nKept for back-compat parsing; on config load a legacy skip_quarantine:true is\nmigrated to auto_approve_tool_changes:true only when the new field is unset\n(see normalizeServerQuarantineFlags).","type":"boolean"},"source_registry_id":{"description":"SourceRegistryID records which registry this server was added from (empty\nfor manually-configured servers). MCP-866: surfaced in the approval /\nquarantine view so a reviewer can see a server's origin.","type":"string"},"source_registry_provenance":{"description":"SourceRegistryProvenance records the source registry's provenance at add\ntime (RegistryProvenanceOfficial / RegistryProvenanceCustom). It is purely\ninformational (MCP-1072) — surfaced so a reviewer can see a server's origin\n— and no longer gates quarantine or skip_quarantine.","type":"string"},"tool_discovery_interval":{"type":"string"},"toon_output":{"description":"ToonOutput overrides the global toon_output mode for this server's\ntools (spec 084, FR-001). Plain string, not a pointer: \"\"/absent =\ninherit the global value; \"off\"|\"adaptive\"|\"always\" = override (\"off\"\nis the explicit force-off). Resolved by Config.ResolveToonOutput.","type":"string"},"trust_mode":{"description":"TrustMode is the per-server trust tier: auto|scan|manual. Supersedes\nauto_approve_tool_changes (spec 086). An empty value is derived from the\nlegacy fields at load via normalizeServerQuarantineFlags; the single\nresolution point is EffectiveTrustMode(), which treats an empty or\nunrecognized value as manual (secure by default). Read via\nEffectiveTrustMode(), never the raw string.","type":"string"},"updated":{"type":"string"},"url":{"type":"string"},"working_dir":{"description":"Working directory for stdio servers","type":"string"}},"type":"object"},"config.TLSConfig":{"description":"TLS configuration","properties":{"certs_dir":{"description":"Directory for certificates","type":"string"},"enabled":{"description":"Enable HTTPS","type":"boolean"},"hsts":{"description":"Enable HTTP Strict Transport Security","type":"boolean"},"require_client_cert":{"description":"Enable mTLS","type":"boolean"}},"type":"object"},"config.TelemetryConfig":{"description":"Telemetry settings (Spec 036)","properties":{"anonymous_id":{"description":"Auto-generated UUIDv4","type":"string"},"anonymous_id_created_at":{"description":"Spec 042 (Tier 2) additions — all default-zero, all backwards-compatible.","type":"string"},"enabled":{"description":"Default: true (opt-out)","type":"boolean"},"endpoint":{"description":"Override for testing","type":"string"},"last_reported_version":{"description":"Upgrade funnel","type":"string"},"last_startup_outcome":{"description":"success|port_conflict|db_locked|...","type":"string"},"notice_shown":{"description":"First-run notice flag","type":"boolean"}},"type":"object"},"config.TokenizerConfig":{"description":"Tokenizer configuration for token counting","properties":{"default_model":{"description":"Default model for tokenization (e.g., \"gpt-4\")","type":"string"},"enabled":{"description":"Enable token counting","type":"boolean"},"encoding":{"description":"Default encoding (e.g., \"cl100k_base\")","type":"string"}},"type":"object"},"config.TracingExporterConfig":{"description":"Tracing gates the OpenTelemetry OTLP trace exporter (MCP-32). Disabled by\ndefault.","properties":{"enabled":{"description":"Enabled turns on OTLP trace export for tool calls and upstream hops.","type":"boolean"},"endpoint":{"description":"Endpoint is the collector address as host:port (no scheme), e.g.\n\"localhost:4318\" for http or \"localhost:4317\" for grpc.","type":"string"},"protocol":{"description":"Protocol selects the OTLP transport: \"http\" or \"grpc\".","type":"string"},"sample_rate":{"description":"SampleRate is the head-based trace sampling ratio in [0,1]. Default 0.1.\nOmit the key for the 0.1 default; set it to 0 to sample nothing.","type":"number"}},"type":"object"},"config.UpdateCheckConfig":{"description":"Update-check settings (Spec 079 FR-012): config-file control of the\nbackground upgrade-awareness checker (internal/updatecheck). nil =\nenabled on the stable channel (existing default behavior). The existing\nenvironment switches keep working and WIN over these keys (FR-014):\nMCPPROXY_DISABLE_AUTO_UPDATE=true force-disables even when\nenabled=true, and MCPPROXY_ALLOW_PRERELEASE_UPDATES=true force-selects\nthe rc channel even when channel=stable.","properties":{"channel":{"description":"Channel selects which releases are offered as updates: \"stable\"\n(default; prereleases never offered) or \"rc\" (prereleases included).\nEmpty resolves to stable. Validated in ValidateDetailed.\n\nNOTE: for a RELEASED build the running binary's own version is\nauthoritative and overrides this field — a stable build is never\noffered an RC (even with channel=rc), and an RC build always tracks the\nrc channel. This field only takes effect on dev/unstamped builds. See\ninternal/updatecheck.Checker.IncludePrereleases.","type":"string"},"enabled":{"description":"Enabled gates all update checking. Tri-state: nil/absent = enabled\n(default true, matching pre-079 behavior). When false, no network\ncheck is performed and no upgrade nudge appears on any surface\n(FR-015) — /api/v1/info omits the update object entirely.","type":"boolean"}},"type":"object"},"configimport.FailedServer":{"properties":{"details":{"type":"string"},"error":{"type":"string"},"name":{"type":"string"}},"type":"object"},"configimport.ImportSummary":{"properties":{"failed":{"type":"integer"},"imported":{"type":"integer"},"skipped":{"type":"integer"},"total":{"type":"integer"}},"type":"object"},"configimport.SkippedServer":{"properties":{"name":{"type":"string"},"reason":{"description":"\"already_exists\", \"filtered_out\", \"invalid_name\"","type":"string"}},"type":"object"},"connect.ConnectResult":{"description":"The full result; its action mirrors the top-level one","properties":{"action":{"description":"\"created\", \"updated\", \"already_exists\", \"removed\", \"not_found\"","type":"string"},"backup_path":{"type":"string"},"client":{"type":"string"},"config_path":{"type":"string"},"message":{"type":"string"},"server_name":{"type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.APIResponse":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.ActivityDetailResponse":{"properties":{"activity":{"$ref":"#/components/schemas/contracts.ActivityRecord"}},"type":"object"},"contracts.ActivityListResponse":{"properties":{"activities":{"items":{"$ref":"#/components/schemas/contracts.ActivityRecord"},"type":"array","uniqueItems":false},"limit":{"type":"integer"},"offset":{"type":"integer"},"total":{"type":"integer"}},"type":"object"},"contracts.ActivityRecord":{"properties":{"arguments":{"description":"Tool call arguments","type":"object"},"detection_types":{"description":"List of detection types found","items":{"type":"string"},"type":"array","uniqueItems":false},"duration_ms":{"description":"Execution duration in milliseconds","type":"integer"},"error_message":{"description":"Error details if status is \"error\"","type":"string"},"has_sensitive_data":{"description":"Sensitive data detection fields (Spec 026)","type":"boolean"},"id":{"description":"Unique identifier (ULID format)","type":"string"},"max_severity":{"description":"Highest severity level detected (critical, high, medium, low)","type":"string"},"metadata":{"description":"Additional context-specific data","type":"object"},"parent_id":{"description":"Correlation id of the parent call (the code_execution whose sandbox issued this sub-call)","type":"string"},"request_bytes":{"description":"Byte sizes measured pre-truncation, mirroring storage.ActivityRecord\n(Spec 069 A1). They are the only cost signal a bodies-off export carries:\nwith payloads suppressed there is no text left to measure, so a consumer\naccounting for a record it cannot read has nothing else to go on. They are\nbyte LENGTHS, not token counts — the basis for an explicit estimate, never\na measured figure (spec 103, contracts/replay-input.md).\n\nZero means UNKNOWN, not free: legacy records predate the measurement and\ncode-execution sub-calls record both as zero. Hence omitempty — an absent\nkey tells a consumer to fall to exclusion accounting, whereas a present\nzero would read as a costless call and silently understate the workload.","type":"integer"},"request_id":{"description":"HTTP request ID for correlation","type":"string"},"response":{"description":"Tool response (potentially truncated)","type":"string"},"response_bytes":{"description":"Raw upstream response size in bytes before truncation","type":"integer"},"response_truncated":{"description":"True if response was truncated","type":"boolean"},"server_name":{"description":"Name of upstream MCP server","type":"string"},"session_id":{"description":"MCP transport session ID (regenerated on every reconnect)","type":"string"},"source":{"$ref":"#/components/schemas/contracts.ActivitySource"},"status":{"description":"Result status: \"success\", \"error\", \"blocked\", \"rejected\"","type":"string"},"timestamp":{"description":"When activity occurred","type":"string"},"tool_name":{"description":"Name of tool called","type":"string"},"type":{"$ref":"#/components/schemas/contracts.ActivityType"},"work_session_id":{"description":"Spec 082: one client, one project, across reconnects","type":"string"}},"type":"object"},"contracts.ActivitySource":{"description":"How activity was triggered: \"mcp\", \"cli\", \"api\"","type":"string","x-enum-varnames":["ActivitySourceMCP","ActivitySourceCLI","ActivitySourceAPI"]},"contracts.ActivitySummaryResponse":{"properties":{"blocked_count":{"description":"Count of blocked activities","type":"integer"},"call_count":{"description":"CallCount is how many of those records are CALLS THE USER MADE, as\ndefined once in storage.CountsAsCall and shared with the usage aggregate\nbehind the Usage tab (audit finding F1, #1046). TotalCount answers \"how\nmany rows does the Activity Log have\"; CallCount answers \"how many calls\nwere there\". They are different questions — quarantine auto-approvals,\nsystem start, security scans and management chatter are events, not calls\n— and printing either one under the other's label is how the same instance\ncame to report 51 calls on one screen and 19 on another.","type":"integer"},"call_error_count":{"description":"CallErrorCount is the failures within CallCount, so an error RATE computed\nfrom this response has one denominator. It is not ErrorCount: a policy\nblock is a failed call but carries status \"blocked\", and a shed call is an\nerror in neither sense because it never ran.","type":"integer"},"end_time":{"description":"End of the period (RFC3339)","type":"string"},"error_count":{"description":"Count of error activities","type":"integer"},"other_count":{"description":"OtherCount is every record whose status is outside the four-value\nvocabulary above, so that\n\n\tsuccess + error + blocked + rejected + other == total\n\nholds by construction. The status field is a CLOSED vocabulary for tool\ncalls, but the activity log is wider than tool calls: a quarantine change\nstores its ACTION there (\"approved\", \"auto_approved\"), a policy decision\nstores its DECISION (\"allow\"). Those rows were counted in the total and in\nnone of the four buckets, so the Activity Log's own status tiles summed to\nless than the denominator printed beside them — 15+4+0+0 under a \"42\"\n(audit finding F2, #1046). The residual now has a name and a tile.","type":"integer"},"period":{"description":"Time period (1h, 24h, 7d, 30d)","type":"string"},"rejected_count":{"description":"RejectedCount is the number of calls shed by a concurrency limiter before\nthey reached an upstream (spec 093). 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The effective\nconcurrency for a server is additionally bounded by the global aggregate\nlimiter, which is NOT an inheritance source for these fields.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/contracts.OAuthConfig"},"oauth_status":{"description":"OAuth status: \"authenticated\", \"expired\", \"error\", \"none\"","type":"string"},"protocol":{"type":"string"},"quarantine":{"$ref":"#/components/schemas/contracts.QuarantineStats"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_count":{"type":"integer"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets this disconnected server","type":"boolean"},"retry_count":{"type":"integer"},"retry_stopped":{"description":"RetryStopped reports that automatic reconnection has been given up for\ngood because the failure is deterministic and unrecoverable — a missing\nbinary, an image without the interpreter, an unparseable config (GH\n#1145). It is NOT ordinary exponential backoff, which keeps retrying;\nnothing will happen until the user fixes the config or restarts the\nserver. RetryStoppedCode is the stable MCPX_* code that proved it and\nRetryStoppedReason the catalog message explaining how to fix it. All three\nare omitted for servers that are healthy or still retrying.","type":"boolean"},"retry_stopped_code":{"type":"string"},"retry_stopped_reason":{"type":"string"},"security_scan":{"$ref":"#/components/schemas/contracts.SecurityScanSummary"},"should_retry":{"type":"boolean"},"source_registry_id":{"description":"MCP-901 — registry provenance of an upstream that was added from a\nregistry. SourceRegistryID names the source registry (empty for\nmanually-configured servers); SourceRegistryProvenance is the trust tag\nrecorded at add time (\"official/trusted\" or \"custom/unverified\"). Both\nare projected from config.ServerConfig so the approval/quarantine view\ncan render an \"added from \u003cregistry\u003e · unverified\" origin badge. Optional\nand omitted when empty — clients that pre-date this treat them as absent.","type":"string"},"source_registry_provenance":{"type":"string"},"status":{"type":"string"},"token_expires_at":{"description":"When the OAuth token expires (ISO 8601)","type":"string"},"tool_count":{"type":"integer"},"tool_list_token_size":{"description":"Token size for this server's tools","type":"integer"},"trust_mode":{"description":"TrustMode mirrors config.ServerConfig.TrustMode (spec 086): the per-server\ntrust tier (\"auto\"/\"scan\"/\"manual\"). Surfaced on the GET path so clients can\nread back the persisted mode; PATCH/POST accept it via AddServerRequest.\nOmitted when empty (server predates the field / relies on legacy flags).","type":"string"},"updated":{"type":"string"},"url":{"type":"string"},"user_logged_out":{"description":"True if user explicitly logged out (prevents auto-reconnection)","type":"boolean"},"working_dir":{"type":"string"}},"type":"object"},"contracts.ServerActionResponse":{"properties":{"action":{"type":"string"},"async":{"type":"boolean"},"server":{"type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.ServerStats":{"properties":{"connected_servers":{"type":"integer"},"docker_containers":{"type":"integer"},"quarantined_servers":{"type":"integer"},"token_metrics":{"$ref":"#/components/schemas/contracts.ServerTokenMetrics"},"total_servers":{"type":"integer"},"total_tools":{"type":"integer"}},"type":"object"},"contracts.ServerTokenMetrics":{"properties":{"average_query_result_size":{"description":"Typical retrieve_tools output (tokens)","type":"integer"},"per_server_tool_list_sizes":{"additionalProperties":{"type":"integer"},"description":"Token size per server","type":"object"},"saved_tokens":{"description":"Difference","type":"integer"},"saved_tokens_percentage":{"description":"Percentage saved","type":"number"},"total_server_tool_list_size":{"description":"All upstream tools combined (tokens)","type":"integer"}},"type":"object"},"contracts.SuccessResponse":{"properties":{"data":{"type":"object"},"success":{"type":"boolean"}},"type":"object"},"contracts.TokenMetrics":{"description":"Token usage metrics (nil for older records)","properties":{"encoding":{"description":"Encoding used (e.g., cl100k_base)","type":"string"},"estimated_cost":{"description":"Optional cost estimate","type":"number"},"input_tokens":{"description":"Tokens in the request","type":"integer"},"model":{"description":"Model used for tokenization","type":"string"},"output_tokens":{"description":"Tokens in the response","type":"integer"},"total_tokens":{"description":"Total tokens (input + output)","type":"integer"},"truncated_tokens":{"description":"Tokens removed by truncation","type":"integer"},"was_truncated":{"description":"Whether response was truncated","type":"boolean"}},"type":"object"},"contracts.Tool":{"properties":{"annotations":{"$ref":"#/components/schemas/contracts.ToolAnnotation"},"approval_status":{"type":"string"},"config_denied":{"description":"ConfigDenied is true when the tool is denied by the server's static\nenabled_tools / disabled_tools config. The user cannot override this toggle.","type":"boolean"},"description":{"type":"string"},"disabled":{"description":"Disabled mirrors ToolApprovalRecord.Disabled so per-tool enable state is\navailable without a second round-trip to the approvals endpoint. Absent\nin the JSON when false (default) to keep responses compact.","type":"boolean"},"hash":{"description":"Hash is the tool's current stored hash rendered in the preflight pin\nformat \"sha256/v{N}:{hex}\" (Spec 098 FR-011), where N is the approval\nrecord's HashSchemaVersion. It is the authoring surface for\n` + "`" + `POST /api/v1/preflight` + "`" + ` pins and ` + "`" + `mcpproxy tools preflight --pin` + "`" + `:\ncopy the value straight into a pin.\n\nDisclosure is OPERATOR TIER ONLY — same rule as the preflight per-tool\nresult. The field is omitted for agent-token callers and for tools with\nno stored hash (no approval record yet, or a record written before\nhashes existed).","type":"string"},"held_reason":{"description":"HeldReason, HeldVerdict and HeldSignals mirror the same-named fields on\nstorage.ToolApprovalRecord: the offline-scan evidence that made\ntrust_mode: scan hold this tool for review (spec 086 FR-018). HeldSignals\nnames the matched deterministic check ids, e.g.\n\"tpa.TPA-2026-0001.hidden_instruction\", so a reviewer can see WHY the tool\nis held. All three are omitted for tools that are not held by the scan gate\n(including every record written before the field existed).","type":"string"},"held_signals":{"items":{"type":"string"},"type":"array","uniqueItems":false},"held_verdict":{"type":"string"},"last_used":{"type":"string"},"name":{"type":"string"},"schema":{"type":"object"},"server_name":{"type":"string"},"usage":{"type":"integer"}},"type":"object"},"contracts.ToolAnnotation":{"description":"Tool behavior hints snapshot","properties":{"destructiveHint":{"type":"boolean"},"idempotentHint":{"type":"boolean"},"openWorldHint":{"type":"boolean"},"readOnlyHint":{"type":"boolean"},"title":{"type":"string"}},"type":"object"},"contracts.ToolCallRecord":{"description":"The new tool call record","properties":{"annotations":{"$ref":"#/components/schemas/contracts.ToolAnnotation"},"arguments":{"description":"Tool arguments","type":"object"},"config_path":{"description":"Active config file path","type":"string"},"duration":{"description":"Duration in nanoseconds","type":"integer"},"error":{"description":"Error message (failure only)","type":"string"},"execution_type":{"description":"\"direct\" or \"code_execution\"","type":"string"},"id":{"description":"Unique identifier","type":"string"},"mcp_client_name":{"description":"MCP client name from InitializeRequest","type":"string"},"mcp_client_version":{"description":"MCP client version","type":"string"},"mcp_session_id":{"description":"MCP session identifier","type":"string"},"metrics":{"$ref":"#/components/schemas/contracts.TokenMetrics"},"parent_call_id":{"description":"Links nested calls to parent code_execution","type":"string"},"request_id":{"description":"Request correlation ID","type":"string"},"response":{"description":"Tool response (success only)","type":"object"},"response_bytes":{"description":"Marshalled response size before truncation","type":"integer"},"response_truncated":{"description":"ResponseTruncated and ResponseBytes describe a STORAGE-side cut (#1176):\nthe caller received the response whole, and only the persisted copy was\nshortened to tool_call_max_response_size. When ResponseTruncated is true\nthe Response object carries {truncated, original_bytes, preview, note}\ninstead of the upstream result, and ResponseBytes is its size before the\ncut.","type":"boolean"},"server_id":{"description":"Server identity hash","type":"string"},"server_name":{"description":"Human-readable server name","type":"string"},"timestamp":{"description":"When the call was made","type":"string"},"tool_name":{"description":"Tool name (without server prefix)","type":"string"}},"type":"object"},"contracts.UpdateInfo":{"description":"Update information (if available)","properties":{"available":{"description":"Whether an update is available","type":"boolean"},"behind_summary":{"description":"Spec 079 FR-002 — how far behind the running build is. All four are\nadditive (FR-021) and absent when the delta could not be resolved, in\nwhich case every surface renders its pre-delta wording.","type":"string"},"check_error":{"description":"Error message if update check failed","type":"string"},"checked_at":{"description":"When the update check was performed","type":"string"},"install_channel":{"description":"Detected install channel (homebrew, dmg, deb, rpm, docker, go-install, windows-installer, tarball, unknown) — Spec 079 FR-008","type":"string"},"is_prerelease":{"description":"Whether the latest version is a prerelease","type":"boolean"},"latest_version":{"description":"Latest version available (e.g., \"v1.2.3\")","type":"string"},"nudges_suppressed":{"description":"UI surfaces must stay quiet (CI / non-interactive context); machine-readable fields still report the facts — Spec 079 FR-019","type":"boolean"},"release_url":{"description":"URL to the release page","type":"string"},"releases_behind":{"description":"Releases on the offered channel between the running and offered versions","type":"integer"},"releases_behind_saturated":{"description":"ReleasesBehind is a lower bound: the running build predates the scanned release window","type":"boolean"},"update_command":{"description":"One-line update command for the channel; only set when an update is available and the channel has one — Spec 079 FR-009","type":"string"},"weeks_behind":{"description":"Whole weeks between the two releases' publish dates; 0 is a real value, absent means unknown","type":"integer"}},"type":"object"},"contracts.UpdatePolicy":{"description":"UpdatePolicy is the effective, hot-reloadable update policy (Spec 092\nFR-015). Always present: the ` + "`" + `update` + "`" + ` object above is omitted both when\nupdate checking is disabled AND when no check has produced a result\nyet, so its absence cannot tell a client whether it is allowed to run\nits own (e.g. Sparkle feed) check. This field states the answer.","properties":{"channel":{"description":"Channel is the tracked release channel: \"stable\" or \"rc\".","type":"string"},"enabled":{"description":"Enabled is the effective automatic-check kill switch: update_check.enabled\nwith MCPPROXY_DISABLE_AUTO_UPDATE=true winning over it. A user-initiated\n\"Check for Updates\" stays available regardless.","type":"boolean"},"nudges_suppressed":{"description":"NudgesSuppressed asks UI surfaces to stay quiet (CI / non-interactive)\nwhile machine-readable fields keep reporting the facts.","type":"boolean"}},"type":"object"},"contracts.UpstreamError":{"properties":{"error_message":{"type":"string"},"server_name":{"type":"string"},"timestamp":{"type":"string"}},"type":"object"},"contracts.UsageAggregateResponse":{"properties":{"freshness_ms":{"description":"age of the underlying snapshot in ms","type":"integer"},"generated_at":{"type":"string"},"other":{"$ref":"#/components/schemas/contracts.UsageOtherBucket"},"timeline":{"items":{"$ref":"#/components/schemas/contracts.UsageTimeBucket"},"type":"array","uniqueItems":false},"token_source":{"description":"\"bytes\" (size-based proxy, FR-006)","type":"string"},"tokens_saved":{"description":"echoed from ServerTokenMetrics (FR-007)","type":"integer"},"tokens_saved_percentage":{"type":"number"},"tools":{"items":{"$ref":"#/components/schemas/contracts.UsageToolStat"},"type":"array","uniqueItems":false},"total_calls":{"description":"TotalCalls and TotalErrors are the headline counts for the window: the sum\nof the timeline this same response carries, so the tiles and the histogram\nunder them cannot disagree. They are NOT the sum of Tools — that list is\nlifetime-cumulative, upstream-only and truncated to top-N, and summing it\nclient-side is what made the Usage tab print a third number for the same\n24 hours (audit finding F1, #1046). The population is\nstorage.CountsAsCall, shared with ActivitySummaryResponse.CallCount.\n\nTwo bounds on how exactly this matches the Activity Log's own count.\nBoth are bounded and disclosed, unlike the population mismatch they\nreplace, which was unbounded and silent:\n\n - Window granularity is the timeline's: whole hour buckets, so the span\n is the requested window rounded up to a bucket edge.\n - This response is served from a snapshot behind a short read cache\n (observability.usage_cache_ttl, 5s by default) so the endpoint never\n scans the activity log per request, while the summary endpoint counts\n live. Calls that land inside that window appear on the Activity Log\n first. FreshnessMs and GeneratedAt say how old the figures are, and\n the Usage tab prints it (\"Updated 3s ago\").","type":"integer"},"total_errors":{"type":"integer"},"window":{"type":"string"}},"type":"object"},"contracts.UsageOtherBucket":{"description":"present only when the list was truncated to top-N","properties":{"calls":{"type":"integer"},"tools_folded":{"type":"integer"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.UsageTimeBucket":{"properties":{"calls":{"type":"integer"},"errors":{"type":"integer"},"start":{"type":"string"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.UsageToolStat":{"properties":{"avg_req_bytes":{"description":"null when no sized request calls","type":"integer"},"avg_resp_bytes":{"description":"null when sized_calls == 0 (only legacy 0-byte calls)","type":"integer"},"blocked":{"type":"integer"},"calls":{"type":"integer"},"error_rate":{"type":"number"},"errors":{"type":"integer"},"last_used":{"type":"string"},"p50_exceeds":{"type":"boolean"},"p50_ms":{"description":"P50Ms and P95Ms are read off a fixed latency histogram, so they are BUCKET\nBOUNDS, not measured durations: the true percentile is at or below the\nvalue, and a client must render it as a bound (\"≤ 5 ms\"). P50Exceeds /\nP95Exceeds flip that reading for the unbounded overflow bucket, where the\nvalue is the last bound and the truth is above it (\"\u003e 10 s\").","type":"integer"},"p95_exceeds":{"type":"boolean"},"p95_ms":{"type":"integer"},"rejected":{"description":"spec 093: shed by a concurrency limit; never executed, so excluded from calls/latency","type":"integer"},"server":{"type":"string"},"sized_calls":{"description":"calls with known response size (basis for avg_resp_bytes)","type":"integer"},"tool":{"type":"string"},"total_req_bytes":{"type":"integer"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.ValidateConfigResponse":{"properties":{"errors":{"items":{"$ref":"#/components/schemas/contracts.ValidationError"},"type":"array","uniqueItems":false},"valid":{"type":"boolean"}},"type":"object"},"contracts.ValidationError":{"properties":{"field":{"type":"string"},"message":{"type":"string"}},"type":"object"},"data":{"properties":{"data":{"$ref":"#/components/schemas/contracts.InfoResponse"}},"type":"object"},"httpapi.AddServerRequest":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve\nnew/changed tools past the trust baseline (MCP-2930). Tri-state *bool:\na nil pointer means \"leave unchanged\" on PATCH; a present value\n(including false) is applied. Mirrors config.ServerConfig's *bool\nsemantics — do NOT collapse to a plain bool, or an omitted field would\nsilently reset a previously-set value.","type":"boolean"},"command":{"type":"string"},"enabled":{"type":"boolean"},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts is the per-server override for prompt aggregation (F9):\nwhether this server's advertised MCP prompts are merged into mcpproxy's\nprompts/list. Tri-state *bool mirroring config.ServerConfig.ExposePrompts —\na nil pointer means \"leave unchanged\" on PATCH (and \"inherit the default\naggregate behavior\" on create); a present value (including false) is applied.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"init_timeout":{"description":"InitTimeout is the per-server MCP ` + "`" + `initialize` + "`" + ` handshake deadline override\n(MCP-3322 / GH #760), serialized as a duration string (e.g. \"120s\"). A nil\npointer means \"leave unchanged\" on PATCH; a present value is applied.\nMirrors config.ServerConfig.InitTimeout's *Duration tri-state.","type":"string"},"isolation":{"$ref":"#/components/schemas/httpapi.IsolationRequest"},"max_concurrent_requests":{"description":"MaxConcurrentRequests / QueueSize / QueueTimeout are the per-server\nconcurrency overrides (spec 093 / GH #955, FR-020 scope (c)). Each is\ntri-state: a nil pointer means \"leave unchanged\" on PATCH and \"inherit\nserver_concurrency_defaults\" on create; an explicit 0 disables that\nsetting for this server; a positive value overrides it. Do NOT collapse\nthem to plain values — an omitted field would then silently reset a\nconfigured limit.","type":"integer"},"name":{"type":"string"},"protocol":{"type":"string"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"type":"boolean"},"trust_mode":{"description":"TrustMode is the per-server trust tier (spec 086): \"auto\", \"scan\", or\n\"manual\". Empty means \"leave unchanged\" on PATCH (and inherit the migrated\ndefault on create). A non-empty value is applied to ServerConfig.TrustMode\nand resolved by EffectiveTrustMode (an unrecognized value fails closed to\nmanual). This is the REST seam for changing the trust tier via\nPOST/PATCH /api/v1/servers.","type":"string"},"url":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.CanonicalConfigPath":{"properties":{"description":{"description":"Brief description","type":"string"},"exists":{"description":"Whether the file exists","type":"boolean"},"format":{"description":"Format identifier (e.g., \"claude_desktop\")","type":"string"},"name":{"description":"Display name (e.g., \"Claude Desktop\")","type":"string"},"os":{"description":"Operating system (darwin, windows, linux)","type":"string"},"path":{"description":"Full path to the config file","type":"string"}},"type":"object"},"httpapi.CanonicalConfigPathsResponse":{"properties":{"os":{"description":"Current operating system","type":"string"},"paths":{"description":"List of canonical config paths","items":{"$ref":"#/components/schemas/httpapi.CanonicalConfigPath"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ConnectConflictResponse":{"properties":{"action":{"description":"already_exists | precondition_failed","type":"string"},"data":{"$ref":"#/components/schemas/connect.ConnectResult"},"error":{"description":"Human-readable message","type":"string"},"success":{"description":"Always false","type":"boolean"}},"type":"object"},"httpapi.ConnectRequest":{"properties":{"force":{"description":"Overwrite existing entry","type":"boolean"},"precondition_token":{"description":"PreconditionToken is the opaque token from the preview this write was\nconfirmed against (Spec 091 FR-005). When present, the core rechecks it\nat write time and responds 409 with action \"precondition_failed\" —\nwriting nothing — if the config or the entry MCPProxy would write has\ndrifted since; the caller then re-previews instead of retrying. Absent\nmeans exactly the pre-091 behavior. A replace-classified flow sends this\nTOGETHER with force=true: the token, not the absence of force, is the\noverwrite safety.","type":"string"},"server_name":{"description":"Defaults to \"mcpproxy\"","type":"string"}},"type":"object"},"httpapi.ImportFromPathRequest":{"properties":{"format":{"description":"Optional format hint","type":"string"},"path":{"description":"File path to import from","type":"string"},"rename":{"additionalProperties":{"type":"string"},"description":"Rename maps a server name → new name. Applied after parsing so the\ncaller can disambiguate cross-source name collisions (Spec 046 v2 —\ne.g. \"mcpproxy\" → \"mcpproxy_claude_code\"). Keys are matched against\neither the raw source name (OriginalName) or the sanitized name shown\nin the preview (Server.Name); these differ for names that need\nsanitizing (e.g. \"Figma Desktop\" → \"Figma_Desktop\"). Keys not present\nin the imported set are ignored.","type":"object"},"server_names":{"description":"Optional: import only these servers","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportRequest":{"properties":{"content":{"description":"Raw JSON or TOML content","type":"string"},"format":{"description":"Optional format hint","type":"string"},"server_names":{"description":"Optional: import only these servers","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportResponse":{"properties":{"failed":{"items":{"$ref":"#/components/schemas/configimport.FailedServer"},"type":"array","uniqueItems":false},"format":{"type":"string"},"format_name":{"type":"string"},"imported":{"items":{"$ref":"#/components/schemas/httpapi.ImportedServerResponse"},"type":"array","uniqueItems":false},"skipped":{"items":{"$ref":"#/components/schemas/configimport.SkippedServer"},"type":"array","uniqueItems":false},"summary":{"$ref":"#/components/schemas/configimport.ImportSummary"},"warnings":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportedServerResponse":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"command":{"type":"string"},"fields_skipped":{"items":{"type":"string"},"type":"array","uniqueItems":false},"name":{"type":"string"},"original_name":{"type":"string"},"protocol":{"type":"string"},"source_format":{"type":"string"},"url":{"type":"string"},"warnings":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.IsolationRequest":{"description":"Isolation carries per-server Docker isolation overrides (enabled,\nmode_override, image, network_mode, extra_args, working_dir). A nil\npointer means \"do not touch isolation config\". A present object is\napplied field-by-field ON TOP of the persisted overrides, so omitting a\nfield leaves it alone; clear an individual override by sending it\nexplicitly (` + "`" + `\"enabled\": null` + "`" + `, ` + "`" + `\"image\": \"\"` + "`" + `).","properties":{"enabled":{"description":"Enabled exists ONLY to detect and reject an echoed-back read. It is the\neffective state on the read surface and is never writable; see validate().","type":"boolean"},"enabled_override":{"description":"EnabledOverride is the tri-state per-server override — the RAW value, the\nsame one reads return as ` + "`" + `enabled_override` + "`" + `. It has THREE meaningful wire\nstates, and collapsing them is what silently un-isolated servers\n(GH #1142):\n - absent → leave the persisted override untouched\n - null → clear the override, back to inheriting the global\n - true / false → set an explicit opt-in / opt-out","type":"boolean"},"extra_args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"type":"string"},"mode_override":{"description":"ModeOverride sets ` + "`" + `isolation.mode` + "`" + ` (\"docker\" | \"sandbox\" | \"none\").\nnil leaves the persisted value alone; an empty string clears it. An\nunrecognized value is rejected with a 400 rather than persisted.","type":"string"},"network_mode":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.OnboardingMarkRequest":{"properties":{"connect_step_status":{"description":"ConnectStepStatus is one of: \"\", \"completed\", \"skipped\". Empty\npreserves the existing value. The stored enum is wider (Spec 080\nFR-001): a \"skipped\" request for a previously untouched connect step\nis upgraded server-side to \"completed_external\" when the install\nshows positive evidence of an external connection (Spec 080 FR-002).\n\"completed_external\" is NOT accepted from clients — it must never be\npersisted without that server-verified evidence (edge case: \"never\nguess completed_external without positive evidence\").","type":"string"},"engaged":{"description":"Engaged marks the wizard as engaged (completed or explicitly skipped).\nOnce true, the wizard does not auto-show again.","type":"boolean"},"mark_shown":{"description":"MarkShown records the wizard's first display time if not already set.","type":"boolean"},"server_step_status":{"description":"ServerStepStatus is one of: \"\", \"completed\", \"skipped\". Empty\npreserves the existing value.","type":"string"}},"type":"object"},"httpapi.SetActiveProfileRequest":{"properties":{"active_profile":{"type":"string"},"profile":{"type":"string"}},"type":"object"},"httpapi.UndoConnectRequest":{"properties":{"backup_name":{"description":"BackupName is the bare filename (filepath.Base) of the backup returned as\nbackup_path by the preceding connect — a name, never a path. Undo resolves\nthe full path server-side by joining it with the client's own config\ndirectory, so a client-supplied value can never contribute a directory\ncomponent (traversal is impossible by construction). Empty means the\nconnect created the file (no prior file existed), so undo removes it.","type":"string"},"server_name":{"description":"Defaults to \"mcpproxy\"","type":"string"}},"type":"object"},"httpapi.UpdateFailureRequest":{"properties":{"stage":{"description":"Stage is the failure stage of the update session.","enum":["appcast","download","install","other"],"type":"string"}},"type":"object"},"management.BulkOperationResult":{"properties":{"errors":{"additionalProperties":{"type":"string"},"description":"Map of server name to error message","type":"object"},"failed":{"description":"Number of failed operations","type":"integer"},"successful":{"description":"Number of successful operations","type":"integer"},"total":{"description":"Total servers processed","type":"integer"}},"type":"object"},"observability.HealthResponse":{"properties":{"components":{"items":{"$ref":"#/components/schemas/observability.HealthStatus"},"type":"array","uniqueItems":false},"status":{"description":"\"healthy\" or \"unhealthy\"","type":"string"},"timestamp":{"type":"string"}},"type":"object"},"observability.HealthStatus":{"properties":{"error":{"type":"string"},"latency":{"type":"string"},"name":{"type":"string"},"status":{"description":"\"healthy\" or \"unhealthy\"","type":"string"}},"type":"object"},"observability.ReadinessResponse":{"properties":{"components":{"items":{"$ref":"#/components/schemas/observability.HealthStatus"},"type":"array","uniqueItems":false},"status":{"description":"\"ready\" or \"not_ready\"","type":"string"},"timestamp":{"type":"string"}},"type":"object"},"secureenv.EnvConfig":{"description":"Environment configuration for secure variable filtering","properties":{"allowed_system_vars":{"items":{"type":"string"},"type":"array","uniqueItems":false},"custom_vars":{"additionalProperties":{"type":"string"},"type":"object"},"enhance_path":{"description":"Enable PATH enhancement for Launchd scenarios","type":"boolean"},"forward_proxy_env":{"description":"ForwardProxyEnv opts in to forwarding the ambient HTTP(S)/ALL/NO/FTP proxy\nenvironment variables to spawned upstream servers (MCP-2769). It is OFF by\ndefault and deliberately kept out of the AllowedSystemVars default list:\nproxy URLs frequently carry credentials (http://user:pass@proxy), so\nforwarding them to every stdio upstream is a credential-leak risk. When\nenabled, values are forwarded with their userinfo (credentials) redacted.","type":"boolean"},"inherit_system_safe":{"type":"boolean"}},"type":"object"},"telemetry.FeedbackContext":{"properties":{"arch":{"type":"string"},"connected_server_count":{"type":"integer"},"edition":{"type":"string"},"os":{"type":"string"},"routing_mode":{"type":"string"},"server_count":{"type":"integer"},"version":{"type":"string"}},"type":"object"},"telemetry.FeedbackRequest":{"properties":{"category":{"description":"bug, feature, other","type":"string"},"context":{"$ref":"#/components/schemas/telemetry.FeedbackContext"},"email":{"type":"string"},"message":{"type":"string"}},"type":"object"},"telemetry.FeedbackResponse":{"properties":{"error":{"type":"string"},"issue_url":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}},"securitySchemes":{"ApiKeyAuth":{"description":"API key authentication via query parameter. Use ?apikey=your-key","in":"query","name":"apikey","type":"apiKey"}}}, "info": {"contact":{"name":"MCPProxy Support","url":"https://github.com/smart-mcp-proxy/mcpproxy-go"},"description":"{{escape .Description}}","license":{"name":"MIT","url":"https://opensource.org/licenses/MIT"},"title":"{{.Title}}","version":"{{.Version}}"}, "externalDocs": {"description":"","url":""}, "paths": {"/api/v1/activity":{"get":{"description":"Returns paginated list of activity records with optional filtering","parameters":[{"description":"Filter by activity type(s), comma-separated for multiple (Spec 024)","in":"query","name":"type","schema":{"enum":["tool_call","policy_decision","quarantine_change","server_change","system_start","system_stop","internal_tool_call","config_change","preflight","prompt_get"],"type":"string"}},{"description":"Filter by server name","in":"query","name":"server","schema":{"type":"string"}},{"description":"Filter by tool name","in":"query","name":"tool","schema":{"type":"string"}},{"description":"Filter by MCP transport session ID","in":"query","name":"session_id","schema":{"type":"string"}},{"description":"Filter by work session (one client, one project, across reconnects)","in":"query","name":"work_session_id","schema":{"type":"string"}},{"description":"Filter by status","in":"query","name":"status","schema":{"enum":["success","error","blocked","rejected"],"type":"string"}},{"description":"Filter by intent operation type (Spec 018)","in":"query","name":"intent_type","schema":{"enum":["read","write","destructive"],"type":"string"}},{"description":"Filter by HTTP request ID for log correlation (Spec 021)","in":"query","name":"request_id","schema":{"type":"string"}},{"description":"Filter by parent call id — returns the sub-calls one code_execution issued","in":"query","name":"parent_id","schema":{"type":"string"}},{"description":"Include successful call_tool_* internal tool calls (default: false, excluded to avoid duplicates)","in":"query","name":"include_call_tool","schema":{"type":"boolean"}},{"description":"Filter by sensitive data detection (true=has detections, false=no detections)","in":"query","name":"sensitive_data","schema":{"type":"boolean"}},{"description":"Filter by specific detection type (e.g., 'aws_access_key', 'credit_card')","in":"query","name":"detection_type","schema":{"type":"string"}},{"description":"Filter by severity level","in":"query","name":"severity","schema":{"enum":["critical","high","medium","low"],"type":"string"}},{"description":"Filter by agent token name (Spec 028)","in":"query","name":"agent","schema":{"type":"string"}},{"description":"Filter by auth type (Spec 028)","in":"query","name":"auth_type","schema":{"enum":["admin","agent"],"type":"string"}},{"description":"Filter activities after this time (RFC3339)","in":"query","name":"start_time","schema":{"type":"string"}},{"description":"Filter activities before this time (RFC3339)","in":"query","name":"end_time","schema":{"type":"string"}},{"description":"Maximum records to return (1-100, default 50)","in":"query","name":"limit","schema":{"type":"integer"}},{"description":"Pagination offset (default 0)","in":"query","name":"offset","schema":{"type":"integer"}},{"description":"Omit arguments, response and metadata except a contextual whitelist (intent.reason, intent.operation_type, decision, reason, client_name, client_version) (default: false). 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Served from an in-memory snapshot — never a per-request full-log scan. Per-tool metrics are lifetime-cumulative; ` + "`" + `window` + "`" + ` scopes the timeline and filters the tool list to tools active within the span.","parameters":[{"description":"Time window for timeline + tool-list membership","in":"query","name":"window","schema":{"enum":["24h","7d","all"],"type":"string"}},{"description":"Filter to one server","in":"query","name":"server","schema":{"type":"string"}},{"description":"Filter to one tool","in":"query","name":"tool","schema":{"type":"string"}},{"description":"Filter to tools with activity of this status","in":"query","name":"status","schema":{"enum":["success","error","blocked","rejected"],"type":"string"}},{"description":"Top-N tools by sort key; remainder folded into 'other' (default 20)","in":"query","name":"top","schema":{"type":"integer"}},{"description":"Ranking key for the per-tool list","in":"query","name":"sort","schema":{"enum":["calls","resp_bytes","error_rate","p95"],"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"type":"object"}}}},"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"OK"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Bad Request"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Unauthorized"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"summary":"Get usage statistics aggregate","tags":["Activity"]}},"/api/v1/activity/{id}":{"get":{"description":"Returns full details for a single activity record","parameters":[{"description":"Activity record ID (ULID)","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"type":"object"}}}},"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"OK"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Unauthorized"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Not Found"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Internal Server Error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"summary":"Get activity record details","tags":["Activity"]}},"/api/v1/annotations/coverage":{"get":{"description":"Reports how many upstream tools have MCP annotations vs don't, broken down by server","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Annotation coverage report"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get annotation coverage report","tags":["annotations"]}},"/api/v1/code/scripts":{"get":{"description":"List the stored scripts available to the code_execution tool. Scripts are ` + "`" + `\u003cname\u003e.js` + "`" + ` / ` + "`" + `\u003cname\u003e.ts` + "`" + ` files in the ` + "`" + `scripts/` + "`" + ` directory next to the active configuration file. Entries are advisory: ` + "`" + `ok` + "`" + ` scripts are invocable, ` + "`" + `ambiguous` + "`" + ` names have both extensions, and ` + "`" + `invalid` + "`" + ` ones report why (empty, oversized, unreadable, non-regular). Read-only — there is no write surface for stored scripts.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Stored scripts and the directory they were read from"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List stored code-execution scripts","tags":["code"]}},"/api/v1/config":{"get":{"description":"Retrieves the current MCPProxy configuration including all server definitions, global settings, and runtime parameters","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetConfigResponse"}}},"description":"Configuration retrieved successfully"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read the configuration document"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to get configuration"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get current configuration","tags":["config"]},"patch":{"description":"Deep-merges only the fields present in the request body onto the live in-memory configuration and routes the result through the existing apply pipeline (validation, change detection, disk persistence, hot-reload). Fields the client omits — including masked secrets such as ` + "`" + `api_key` + "`" + ` and secret request headers — are preserved verbatim. Nested objects are merged recursively; arrays and scalars replace wholesale.","requestBody":{"content":{"application/json":{"schema":{"type":"object"}}},"description":"Partial configuration with only the fields to change","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ConfigApplyResult"}}},"description":"Configuration patch applied (inspect validation_errors for rejected values)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload or empty patch"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot mutate configuration)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to read or apply configuration"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Partially update configuration","tags":["config"]}},"/api/v1/config/apply":{"post":{"description":"Applies a new MCPProxy configuration. Validates and persists the configuration to disk. Some changes apply immediately, while others may require a restart. Returns detailed information about applied changes and restart requirements.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/config.Config"}}},"description":"Configuration to apply","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ConfigApplyResult"}}},"description":"Configuration applied successfully with change details"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot mutate configuration)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to apply configuration"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Apply configuration","tags":["config"]}},"/api/v1/config/docker-isolation":{"patch":{"description":"Convenience endpoint to flip ` + "`" + `docker_isolation.enabled` + "`" + ` without resending the full config. Persists to disk via the existing config writer — the file watcher then hot-reloads the change. Returns the new state and whether a restart is required for existing connections to pick it up.","requestBody":{"content":{"application/json":{"schema":{"properties":{"enabled":{"type":"boolean"}},"type":"object"}}},"description":"New isolation state","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ConfigApplyResult"}}},"description":"Isolation toggle applied"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot mutate configuration)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to apply configuration"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Toggle global Docker isolation","tags":["config"]}},"/api/v1/config/validate":{"post":{"description":"Validates a provided MCPProxy configuration without applying it. Checks for syntax errors, invalid server definitions, conflicting settings, and other configuration issues.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/config.Config"}}},"description":"Configuration to validate","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ValidateConfigResponse"}}},"description":"Configuration validation result"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Validation failed"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Validate configuration","tags":["config"]}},"/api/v1/connect":{"get":{"description":"Returns the connection status for all known MCP client applications.\nEach entry indicates whether the client config file exists and whether\nMCPProxy is currently registered in it.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"List of ClientStatus objects"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List client connection status","tags":["connect"]}},"/api/v1/connect/{client}":{"delete":{"description":"Remove the MCPProxy entry from the specified client's configuration file.\nCreates a backup of the existing config before modifying.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.ConnectRequest"}}},"description":"Optional parameters (server_name)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectResult"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client or entry not found"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Disconnect MCPProxy from a client","tags":["connect"]},"get":{"description":"Resolves one client's status by reading its config file on demand.\nThis is the only Connect endpoint that opens a client config file, so\non macOS it is the sole place an App-Data privacy prompt may legitimately\nappear (scoped to this user action). Resolves access_state to\naccessible|absent|denied|malformed and populates remediation when denied.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ClientStatus"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get a single client's connection status (on-demand)","tags":["connect"]},"post":{"description":"Register MCPProxy as an MCP server in the specified client's configuration file.\nCreates a backup of the existing config before modifying.\nOptionally accepts precondition_token from a preview (Spec 091): when supplied,\nthe core rechecks the raw pre-write state and the entry it would write, and\nrefuses a drifted write with 409 before taking any backup. The 409 body's\naction discriminates the two conflict kinds: \"precondition_failed\" (stale\npreview — re-preview, do not retry) vs \"already_exists\" (entry present — pass\nforce=true). force=true never rescues a stale token.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.ConnectRequest"}}},"description":"Optional connection parameters (server_name, force, precondition_token)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectResult"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.ConnectConflictResponse"}}},"description":"Conflict: action=already_exists (use force=true) or action=precondition_failed (preview is stale; re-preview)"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Connect MCPProxy to a client","tags":["connect"]}},"/api/v1/connect/{client}/preview":{"get":{"description":"Returns the exact entry a subsequent connect would add to the client's\nconfig — target path, server key, entry name, and entry contents — WITHOUT\nmodifying the file or creating a backup (Spec 078 US1). The embedded API key\nis masked in the payload; contains_api_key flags that a credential is written.\nentry_exists distinguishes a create from an overwrite of a same-named entry.\nReads the config on demand to classify create-vs-overwrite, so on macOS this\nmay raise an App-Data privacy prompt; a denial returns 403 + remediation.\nSpec 091 adds three fields: existing_entry_summary (present only when\nentry_exists — a sanitized, non-secret projection of the entry being replaced:\nits name, type, endpoint with query/userinfo stripped, command, and header and\nenv NAMES, never values); precondition_token (always present — an opaque keyed\ndigest of the raw pre-write state and the pending entry, echoed back on POST\nconnect to detect drift); and connect_refusal (present when the write would\nrefuse regardless of intent, e.g. a non-create-capable client with no config —\ntreat its presence as \"Connect unavailable\").","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}},{"description":"Entry name to preview (defaults to mcpproxy); mirror the value passed to POST connect","in":"query","name":"server_name","schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectPreview"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Preview the change a connect would make (no write)","tags":["connect"]}},"/api/v1/connect/{client}/undo":{"post":{"description":"Reverts the connect that produced the named backup (Spec 078 US3):\nrestores the client config byte-for-byte from that backup, or — when\nbackup_name is empty because the connect created the file — deletes the\ncreated file. backup_name is the bare filename of the backup the connect\nreturned (never a path); undo resolves the full path server-side inside\nthe client's own config directory, so a client value cannot escape it.\nRefuses with 409 when the config changed since the connect (undo never\nclobbers later edits; use DELETE /connect/{client} for a surgical entry\nremoval instead). Takes its own safety backup first; its path is returned\nas backup_path in the result.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.UndoConnectRequest"}}},"description":"Undo parameters (server_name, backup_name = the bare filename of the backup the preceding connect returned)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectResult (action restored|deleted)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request (e.g. backup_name is a path, or not a backup of this client's config)"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client or backup no longer exists"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Config changed since connect; undo refused"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Undo a connect, restoring the pre-connect config","tags":["connect"]}},"/api/v1/diagnostics":{"get":{"description":"Get comprehensive health diagnostics including upstream errors, OAuth requirements, missing secrets, and Docker status","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.Diagnostics"}}},"description":"Health diagnostics"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get health diagnostics","tags":["diagnostics"]}},"/api/v1/docker/status":{"get":{"description":"Retrieve current Docker availability and recovery status","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Docker status information"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get Docker status","tags":["docker"]}},"/api/v1/doctor":{"get":{"description":"Get comprehensive health diagnostics including upstream errors, OAuth requirements, missing secrets, and Docker status","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.Diagnostics"}}},"description":"Health diagnostics"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get health diagnostics","tags":["diagnostics"]}},"/api/v1/feedback":{"post":{"description":"Submit a bug report, feature request, or general feedback","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/telemetry.FeedbackRequest"}}},"description":"Feedback request","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/telemetry.FeedbackResponse"}}},"description":"OK"},"400":{"content":{"application/json":{"schema":{"additionalProperties":{"type":"string"},"type":"object"}}},"description":"Bad Request"},"429":{"content":{"application/json":{"schema":{"additionalProperties":{"type":"string"},"type":"object"}}},"description":"Too Many Requests"},"500":{"content":{"application/json":{"schema":{"additionalProperties":{"type":"string"},"type":"object"}}},"description":"Internal Server Error"}},"security":[{"ApiKeyAuth":[]}],"summary":"Submit feedback","tags":["feedback"]}},"/api/v1/index/search":{"get":{"description":"Search across all upstream MCP server tools using BM25 keyword search","parameters":[{"description":"Search query","in":"query","name":"q","required":true,"schema":{"type":"string"}},{"description":"Maximum number of results","in":"query","name":"limit","schema":{"default":10,"maximum":100,"type":"integer"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SearchToolsResponse"}}},"description":"Search results"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request (missing query parameter)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Search for tools","tags":["tools"]}},"/api/v1/info":{"get":{"description":"Get essential server metadata including version, web UI URL, endpoint addresses, and update availability\nweb_ui_url carries the ?apikey= credential ONLY for an authenticated admin; a scoped agent token receives the bare URL\nThis endpoint is designed for tray-core communication and version checking\nUse refresh=true query parameter to force an immediate update check against GitHub\nThe launched_by field reports durable launch provenance (\"tray\", \"installer\", or \"\" for user-launched/unknown)","parameters":[{"description":"Force immediate update check against GitHub","in":"query","name":"refresh","schema":{"type":"boolean"}}],"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"Server information with optional update info"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get server information","tags":["status"]}},"/api/v1/onboarding/mark":{"post":{"description":"Updates wizard engagement and per-step status. Once engaged is\ntrue, the wizard does not auto-show again, even if state regresses.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.OnboardingMarkRequest"}}},"description":"Mark request","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Updated OnboardingStateResponse"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read onboarding state"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Mark onboarding wizard state (Spec 046)","tags":["onboarding"]}},"/api/v1/onboarding/state":{"get":{"description":"Returns the wizard engagement record alongside live predicates\n(whether any client is connected, whether any server is configured),\nplus a derived ShouldShowWizard flag the frontend can rely on.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"OnboardingStateResponse"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read onboarding state"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get onboarding wizard state and predicates (Spec 046)","tags":["onboarding"]}},"/api/v1/preflight":{"post":{"description":"Deterministic, side-effect-free availability check for a caller-supplied list of tool IDs (Spec 098). Performs zero upstream calls and mutates no runtime state. HTTP status reports whether the CHECK executed: a fully blocked set is still 200, with the availability verdict in the body. Every executed preflight writes an activity record before the response is returned.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.PreflightRequest"}}},"description":"Tool IDs (1-100 before dedup), optional profile, annotation policy filters and wait budget","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"Preflight verdict and per-tool results"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Validation error (malformed, oversized, doubled or unknown-field body; empty or oversized tool list; conflicting duplicate pins; unknown profile; wait_ms out of range)"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Missing or invalid credentials"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Runtime unavailable, evaluator infrastructure read failure, or the activity record could not be persisted"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"summary":"Preflight required tools","tags":["tools"]}},"/api/v1/profiles":{"get":{"description":"List all configured profiles with their effective servers and indexed tool count (Profiles v2). A profile scopes tool discovery and calls to a named subset of upstream servers.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Profile list"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Configuration unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List configured profiles","tags":["profiles"]}},"/api/v1/profiles/active":{"get":{"description":"Get the server-level default active profile used by UI surfaces (Web UI / tray). Empty string means \"all servers\". Note: within a live MCP session, the set_profile tool selection takes precedence over this default.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Active profile"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get the default active profile","tags":["profiles"]},"put":{"description":"Set the server-level default active profile for UI surfaces. The slug must match a configured profile; pass an empty string to clear. This does not affect live MCP sessions, which use the set_profile tool.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.SetActiveProfileRequest"}}},"description":"Profile slug to activate (empty clears)","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Active profile updated"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid request body"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot change the active profile)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown profile"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Set the default active profile","tags":["profiles"]}},"/api/v1/registries":{"get":{"description":"Retrieves list of all MCP server registries that can be browsed for discovering and installing new upstream servers. Includes registry metadata, server counts, and API endpoints.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetRegistriesResponse"}}},"description":"Registries retrieved successfully"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to list registries"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List available MCP server registries","tags":["registries"]},"post":{"description":"Adds a generic modelcontextprotocol/registry v0.1 https endpoint as a custom registry (MCP-866). The source is always tagged custom/unverified, so every server discovered through it lands quarantined and can never skip quarantine.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.AddRegistrySourceRequest"}}},"description":"Registry source (https url + optional protocol/id/name)","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Registry source added"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"invalid_registry_url"},"403":{"content":{"application/json":{"schema":{"oneOf":[{"$ref":"#/components/schemas/contracts.ErrorResponse"},{"$ref":"#/components/schemas/contracts.ErrorResponse"}]}}},"description":"Forbidden (agent tokens cannot mutate registries)"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_shadows_builtin | duplicate_registry"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Add a user-supplied registry source","tags":["registries"]}},"/api/v1/registries/{id}":{"delete":{"description":"Removes a custom/unverified registry previously added via add-source (MCP-1057). Built-in registries are refused with registry_shadows_builtin; an unknown id yields registry_not_found. The change is persisted copy-on-write.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Registry source removed"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID is required"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registries_locked"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_not_found"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_shadows_builtin"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Remove a user-added custom registry source","tags":["registries"]},"put":{"description":"Updates a custom registry previously added via add-source (MCP-1072): name, url, servers-url. Empty fields are left unchanged. Built-in registries are refused with registry_shadows_builtin; an unknown id yields registry_not_found; a non-https url yields invalid_registry_url. The change is persisted copy-on-write.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.EditRegistrySourceRequest"}}},"description":"Fields to update (name/url/servers_url; empty = unchanged)","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Registry source updated"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID is required | invalid_registry_url"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registries_locked"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_not_found"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_shadows_builtin"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Edit a user-added custom registry source","tags":["registries"]}},"/api/v1/registries/{id}/refresh":{"post":{"description":"Invalidates the cached server lists for a registry so the next search re-fetches fresh data from the source (spec 070 FR-007). Returns how many cache entries were dropped.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.RefreshRegistryResponse"}}},"description":"Registry cache refreshed"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID is required"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to refresh registry cache"}},"summary":"Refresh a registry's cached server list","tags":["registries"]}},"/api/v1/registries/{id}/servers":{"get":{"description":"Searches for MCP servers within a specific registry by keyword or tag. Returns server metadata including installation commands, source code URLs, and npm package information for easy discovery and installation.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}},{"description":"Search query keyword","in":"query","name":"q","schema":{"type":"string"}},{"description":"Filter by tag","in":"query","name":"tag","schema":{"type":"string"}},{"description":"Maximum number of results (default 10)","in":"query","name":"limit","schema":{"type":"integer"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SearchRegistryServersResponse"}}},"description":"Servers retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID required"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to search servers"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Search MCP servers in a registry","tags":["registries"]}},"/api/v1/registries/{id}/servers/{serverId}/add":{"post":{"description":"Resolves a registry server reference server-side, re-derives a validated config, and persists it quarantined (spec 070 keystone). The client never sends a config blob — command/args/url and the quarantine flag are derived from the registry entry, not the request.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}},{"description":"Server ID within the registry","in":"path","name":"serverId","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.AddFromRegistryRequest"}}},"description":"Optional overrides (name, env, enabled)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Server added (quarantined)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"no_install_info | missing_required_input | duplicate_name"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot add servers)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_not_found | server_not_found"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Add an upstream server from a registry reference","tags":["registries"]}},"/api/v1/routing":{"get":{"description":"Get the current routing mode and available MCP endpoints.\nrouting_mode is what /mcp is actually serving; pending_routing_mode carries a\nrestart-pending value persisted on disk (empty when there is none).\ntool_response_mode and direct_tool_response_mode report the two serialization axes, resolved.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Routing mode information"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get routing mode information","tags":["status"]}},"/api/v1/secrets":{"post":{"description":"Stores a secret value in the operating system's secure keyring. The secret can then be referenced in configuration using ${keyring:secret-name} syntax. Automatically notifies runtime to restart affected servers.","requestBody":{"content":{"application/json":{"schema":{"type":"object"}}}},"responses":{"200":{"content":{"application/json":{"schema":{"additionalProperties":{},"type":"object"}}},"description":"Secret stored successfully with reference syntax"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload, missing name/value, or unsupported type"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Secret resolver not available or failed to store secret"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Store a secret in OS keyring","tags":["secrets"]}},"/api/v1/secrets/{name}":{"delete":{"description":"Deletes a secret from the operating system's secure keyring. Automatically notifies runtime to restart affected servers. Only keyring type is supported for security.","parameters":[{"description":"Name of the secret to delete","in":"path","name":"name","required":true,"schema":{"type":"string"}},{"description":"Secret type (only 'keyring' supported, defaults to 'keyring')","in":"query","name":"type","schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"additionalProperties":{},"type":"object"}}},"description":"Secret deleted successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Missing secret name or unsupported type"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Secret resolver not available or failed to delete secret"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Delete a secret from OS keyring","tags":["secrets"]}},"/api/v1/servers":{"get":{"description":"Get a list of all configured upstream MCP servers with their connection status and statistics","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetServersResponse"}}},"description":"Server list with statistics"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List all upstream MCP servers","tags":["servers"]},"post":{"description":"Add a new MCP upstream server to the configuration. New servers are quarantined by default for security. Isolation: ` + "`" + `isolation.enabled` + "`" + ` is READ-ONLY (it reports the effective state on reads) and is rejected with 400; set the per-server override via ` + "`" + `isolation.enabled_override` + "`" + ` (true | false | null to clear, omit to leave unchanged). 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Each session represents a connection from an MCP client to MCPProxy, tracking initialization time, tool calls, and connection status.","parameters":[{"description":"Maximum number of sessions to return (1-100, default 10)","in":"query","name":"limit","schema":{"type":"integer"}},{"description":"Number of sessions to skip for pagination (default 0)","in":"query","name":"offset","schema":{"type":"integer"}},{"description":"Filter by session status","in":"query","name":"status","schema":{"enum":["active","closed"],"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetSessionsResponse"}}},"description":"Sessions retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid status filter"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read MCP session history"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to get sessions"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get active MCP sessions","tags":["sessions"]}},"/api/v1/sessions/{id}":{"get":{"description":"Retrieves detailed information about a specific MCP client session including initialization parameters, connection status, tool call count, and activity timestamps.","parameters":[{"description":"Session ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetSessionDetailResponse"}}},"description":"Session details retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Session ID required"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read MCP session history"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Session not found"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get MCP session details by ID","tags":["sessions"]}},"/api/v1/stats/tokens":{"get":{"description":"Retrieve token savings statistics across all servers and sessions","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Token statistics"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read deployment-wide token statistics"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get token savings statistics","tags":["stats"]}},"/api/v1/status":{"get":{"description":"Get comprehensive server status including running state, listen address, upstream statistics, and timestamp","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Server status information"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get server status","tags":["status"]}},"/api/v1/telemetry/payload":{"get":{"description":"Render the exact JSON heartbeat payload that mcpproxy would next send to the telemetry endpoint, without making a network call. Counters in the payload reflect the current in-memory state. Spec 042.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Telemetry heartbeat payload"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read the deployment telemetry payload"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Telemetry service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Preview next telemetry heartbeat payload","tags":["telemetry"]}},"/api/v1/telemetry/update-failure":{"post":{"description":"Records one terminal update-session failure, identified only by its\nstage (appcast, download, install, other). The body carries no error\ntext, URL, or version — the stage is the only value transmitted.\nReturns 204 both when the occurrence was durably persisted and when\ntelemetry is inactive at event time (config opt-out, environment\nopt-out, CI, or dev build), in which case nothing is recorded.\nCallers cannot and need not distinguish the two.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.UpdateFailureRequest"}}},"description":"Update failure stage","required":true},"responses":{"204":{"description":"Accepted (recorded, or a deliberate no-op while telemetry is inactive)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Malformed body, unknown field, trailing value, or stage outside the closed set"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Persistence failure"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Record a desktop auto-update failure occurrence (Spec 095)","tags":["telemetry"]}},"/api/v1/tool-calls":{"get":{"description":"Retrieves paginated tool call history across all upstream servers or filtered by session ID. Includes execution timestamps, arguments, results, and error information for debugging and auditing.","parameters":[{"description":"Maximum number of records to return (1-100, default 50)","in":"query","name":"limit","schema":{"type":"integer"}},{"description":"Number of records to skip for pagination (default 0)","in":"query","name":"offset","schema":{"type":"integer"}},{"description":"Filter tool calls by MCP session ID","in":"query","name":"session_id","schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetToolCallsResponse"}}},"description":"Tool calls retrieved successfully"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to get tool calls"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get tool call history","tags":["tool-calls"]}},"/api/v1/tool-calls/{id}":{"get":{"description":"Retrieves detailed information about a specific tool call execution including full request arguments, response data, execution time, and any errors encountered.","parameters":[{"description":"Tool call ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetToolCallDetailResponse"}}},"description":"Tool call details retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Tool call ID required"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Tool call not found"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get tool call details by ID","tags":["tool-calls"]}},"/api/v1/tool-calls/{id}/replay":{"post":{"description":"Re-executes a previous tool call with optional modified arguments. Useful for debugging and testing tool behavior with different inputs. Creates a new tool call record linked to the original.","parameters":[{"description":"Original tool call ID to replay","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ReplayToolCallRequest"}}},"description":"Optional modified arguments for replay"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ReplayToolCallResponse"}}},"description":"Tool call replayed successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Tool call ID required or invalid JSON payload"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"429":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Shed by a concurrency limit (Retry-After header carries the wait hint)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to replay tool call"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Replay a tool call","tags":["tool-calls"]}},"/api/v1/tools":{"get":{"description":"Consolidated, read-only listing of all tools from every configured server (including disabled servers and disabled/config-denied tools), enriched with approval state and 30-day usage. Backs the global Tools page and the CLI global ` + "`" + `tools list` + "`" + ` (spec 050, issue #437).","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GlobalToolsResponse"}}},"description":"All tools across all servers"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Could not enumerate servers"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List every tool across all servers","tags":["tools"]}},"/api/v1/tools/call":{"post":{"description":"Execute a tool on an upstream MCP server (wrapper around MCP tool calls)","requestBody":{"content":{"application/json":{"schema":{"properties":{"arguments":{"type":"object"},"tool_name":{"type":"string"}},"type":"object"}}},"description":"Tool call request with tool name and arguments","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Tool call result"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request (invalid payload or missing tool name)"},"429":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Shed by a concurrency limit (Retry-After header carries the wait hint)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error or tool execution failure"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Call a tool","tags":["tools"]}},"/healthz":{"get":{"description":"Get comprehensive health status including all component health (Kubernetes-compatible liveness probe)","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.HealthResponse"}}},"description":"Service is healthy"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.HealthResponse"}}},"description":"Service is unhealthy"}},"summary":"Get health status","tags":["health"]}},"/readyz":{"get":{"description":"Get readiness status including all component readiness checks (Kubernetes-compatible readiness probe)","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.ReadinessResponse"}}},"description":"Service is ready"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.ReadinessResponse"}}},"description":"Service is not ready"}},"summary":"Get readiness status","tags":["health"]}}}, diff --git a/oas/swagger.yaml b/oas/swagger.yaml index 304195954..af7927f22 100644 --- a/oas/swagger.yaml +++ b/oas/swagger.yaml @@ -26,8 +26,10 @@ components: description: 'Response truncation limit in bytes (default: 65536)' type: integer activity_max_size_mb: - description: 'Max total activity-log size in MB before pruning oldest (default: - 256, 0=disabled)' + description: |- + ActivityMaxSizeMB caps the total activity-log size in MB before the + oldest records are pruned. Omit the key for the 256MB default; set it to + 0 to disable the size cap. type: integer activity_retention_days: description: Activity logging settings (RFC-003) @@ -195,9 +197,11 @@ components: MCPPROXY_MAX_CONCURRENT_REQUESTS / _QUEUE_SIZE / _QUEUE_TIMEOUT (FR-022). type: integer max_result_size_chars: - description: Advertised on every tool as `_meta.anthropic/maxResultSizeChars`; - raises Claude Code's inline-response ceiling from 50k to up to 500k chars. - Set to 0 to disable. + description: |- + MaxResultSizeChars is advertised on every tool as + `_meta.anthropic/maxResultSizeChars`; it raises Claude Code's + inline-response ceiling from 50k to up to 500k chars. Omit the key for + the 500000 default; set it to 0 to disable the annotation. type: integer mcpServers: items: @@ -299,6 +303,18 @@ components: $ref: '#/components/schemas/config.TLSConfig' tokenizer: $ref: '#/components/schemas/config.TokenizerConfig' + tool_call_max_records_per_server: + description: 'Calls retained per server (default: 1000)' + type: integer + tool_call_max_response_size: + description: |- + Bounds for the per-server tool-call history behind GET /api/v1/tool-calls + (#1176). It is a recent-debugging window, not an audit log — the activity + log is the durable record — and it kept every upstream response whole, + per server, forever. A non-positive value means "use the default", not + "disable": this store must never be unbounded again, so there is + deliberately no off switch. + type: integer tool_discovery_interval: type: string tool_response_limit: @@ -1143,8 +1159,9 @@ components: description: 'Protocol selects the OTLP transport: "http" or "grpc".' type: string sample_rate: - description: SampleRate is the head-based trace sampling ratio in [0,1]. - Default 0.1. + description: |- + SampleRate is the head-based trace sampling ratio in [0,1]. Default 0.1. + Omit the key for the 0.1 default; set it to 0 to sample nothing. type: number type: object config.UpdateCheckConfig: @@ -2872,6 +2889,18 @@ components: response: description: Tool response (success only) type: object + response_bytes: + description: Marshalled response size before truncation + type: integer + response_truncated: + description: |- + ResponseTruncated and ResponseBytes describe a STORAGE-side cut (#1176): + the caller received the response whole, and only the persisted copy was + shortened to tool_call_max_response_size. When ResponseTruncated is true + the Response object carries {truncated, original_bytes, preview, note} + instead of the upstream result, and ResponseBytes is its size before the + cut. + type: boolean server_id: description: Server identity hash type: string diff --git a/website/sidebars.js b/website/sidebars.js index f5192d7af..ccd9e9e36 100644 --- a/website/sidebars.js +++ b/website/sidebars.js @@ -45,6 +45,7 @@ const sidebars = { 'cli/security-commands', 'cli/credential-commands', 'cli/status-command', + 'cli/db-commands', 'cli-client-mode', 'cli-output-formatting', ], From 06a3f2fab070190d47ed750b0dc0930604988723 Mon Sep 17 00:00:00 2001 From: Algis Dumbris Date: Sat, 5 Sep 2026 05:43:08 +0300 Subject: [PATCH 2/5] fix(storage): close the defects two cross-model reviews found MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Independent reviews by opencode gpt-5.6-sol and codex gpt-5.6-sol over the three areas of the previous commit. Every finding is fixed, triaged with a reason, or pinned by a test that fails without the fix. REPLAY (found by codex; the worst of the set). Capping stored arguments made POST /api/v1/tool-calls/{id}/replay unsafe: with no argument override it re-dispatches the STORED arguments, which for a capped record are the {truncated, original_bytes, preview} placeholder. A replayed call_tool_write or call_tool_destructive would have reached a real system with nonsense. Records now carry arguments_truncated and replay refuses them with a message telling the caller to supply arguments explicitly. BACKUP COULD DESTROY THE LIVE DATABASE (codex). copyFile — the fallback when os.Link fails — did os.WriteFile straight onto the destination. That path can BE a hard link to config.db (an earlier run's .bak, or a concurrent compaction's), so the "backup" step could truncate the database it was backing up. It now writes a temp file and renames, which replaces the directory entry and leaves any other link to the old inode intact. THE SWAP WAS UNGUARDED (both). bbolt's lock is released before the rename — the file has to be closed for a rename to work on Windows — leaving the destructive half of a minutes-long operation unprotected. A core starting in that window ends up holding the old, unlinked inode and every write it makes disappears. Two fixes: a whole-command lock file (O_CREATE|O_EXCL, atomic everywhere, no build-tagged syscall) so two compactions cannot overlap at all, and a pre-replace check that the source is unchanged and unheld. The check opens READ-ONLY — a read-write open makes bbolt commit a freelist flush on a database whose freelist was never persisted, modifying the very file the check exists to prove untouched. ORPHAN SWEEP DELETED LIVE HISTORY (opencode). An identity whose JSON would not unmarshal was skipped while still counting the identity store as populated, so a live server's hashed bucket became unresolvable and was swept. The bucket key IS the identity id, so an unreadable record can be spared without reading it. Such a bucket can then never be reclaimed, which is the right way round — losing a live server's history is worse than leaking a dead one's — and it is now logged rather than silent. TRUNCATION MARKER IGNORED THE CAP (codex). The placeholder carried a fixed 2KB preview whatever the configured cap was, so tool_call_max_response_size: 1024 produced a "truncated" record of ~2.3KB. The preview now shrinks to fit, leaving room for the envelope. TWO ALLOWLIST ENTRIES WERE FALSE (codex). The guard test claimed 0 and absent agree for activity_retention_days and activity_max_records. They did not: an omitted key took DefaultConfig's 90 days / 100000 records, while an explicit 0 was ignored by SetRetentionConfig and fell through to that service's own 7 days / 10000 — a tenth of the documented retention, which a save then silently reverted. EffectiveActivityRetentionDays / EffectiveActivityMaxRecords make the two agree on the documented default. docker_isolation.timeout also differs, but its only reader renders it in a doctor payload, so it stays allowlisted with that as the stated reason rather than an untrue equivalence. GUARD TEST WAS BLIND UNDER -tags server (opencode). Four server-edition fields are invisible to an untagged reflection walk; all four are normalised by ServerEditionConfig.Validate and are now allowlisted with that citation. Run this test under both tags. Smaller: chmod moved before the destination fsync so the mode is durable with the data; a failed directory fsync warns instead of being dropped; a .bak that cannot be removed after a failed rename is reported rather than swallowed; a partial fallback copy is cleaned up. Analysed and left alone, with the reasoning recorded in the code: eviction relies on bytewise key order matching chronological order, which holds because UnixNano is a fixed 19 digits from 2001 to 2262 — documented so a future key format change cannot break it silently. Process notes. opencode's first run on the db command exited 0 with NO verdict after being refused reads outside its launch directory; bbolt's source was staged in-repo and it was re-run. Codex could not write anywhere, so its mutation testing was static; those neuters were run here instead — including one that exposed a vacuous test of my own, which locked the database too early and passed on the injected error rather than on the guard. Verified again on a real instance after every fix: a 200KB response and a 200KB argument both stored as bounded placeholders with response_truncated, response_bytes and arguments_truncated set; both records surviving a restart with no orphan sweep firing. Related #1175, #1176, #1173 --- cmd/mcpproxy/db_cmd.go | 163 +++++++++++-- cmd/mcpproxy/db_cmd_test.go | 132 +++++++++++ internal/config/effective_bounds.go | 31 ++- .../config/zero_value_preservation_test.go | 51 ++++- internal/contracts/types.go | 4 + internal/runtime/runtime.go | 214 ++++++++++-------- internal/storage/server_identity.go | 6 + internal/storage/tool_call_bounds.go | 72 +++++- internal/storage/tool_call_bounds_test.go | 91 ++++++++ oas/docs.go | 2 +- oas/swagger.yaml | 6 + 11 files changed, 640 insertions(+), 132 deletions(-) diff --git a/cmd/mcpproxy/db_cmd.go b/cmd/mcpproxy/db_cmd.go index 304ccb510..7d64eda3d 100644 --- a/cmd/mcpproxy/db_cmd.go +++ b/cmd/mcpproxy/db_cmd.go @@ -296,7 +296,42 @@ func runDBStats(cmd *cobra.Command, _ []string) error { // The rename is what makes this safe to interrupt: until it succeeds the // original file is the only one anything reads, and every failure path removes // the temp file rather than leaving a half-written database beside the real one. +// acquireCompactLock takes a whole-command exclusive lock beside the database. +// +// bbolt's own lock cannot serve here: it is released before the rename (the +// file must be closed for a rename to work on Windows), which leaves the +// destructive half of the operation unguarded. Two compactions could then both +// finish reading, both pass the pre-replace check, and both rename — with the +// second overwriting the first, and, worse, the backup fallback truncating a +// hard link to the live database. +// +// O_CREATE|O_EXCL rather than flock: it is atomic on every platform Go +// supports and needs no build-tagged syscall. The cost is that a crashed run +// leaves a stale lock, so the error says how to clear it. +func acquireCompactLock(dir string) (release func(), err error) { + lockPath := filepath.Join(dir, dbFileName+".compact.lock") + f, err := os.OpenFile(lockPath, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0600) //nolint:gosec // path is derived from the data dir + if err != nil { + if os.IsExist(err) { + return nil, fmt.Errorf( + "another compaction is already running (lock file %s). "+ + "If no mcpproxy command is running, a previous compaction was interrupted — delete that file and retry", + lockPath) + } + return nil, fmt.Errorf("failed to create compaction lock %s: %w", lockPath, err) + } + _ = f.Close() + + return func() { os.Remove(lockPath) }, nil +} + func compactDatabase(srcPath string, opts compactOptions) (result *compactResult, err error) { + releaseLock, err := acquireCompactLock(filepath.Dir(srcPath)) + if err != nil { + return nil, err + } + defer releaseLock() + info, err := os.Stat(srcPath) if err != nil { return nil, fmt.Errorf("failed to stat database %s: %w", srcPath, err) @@ -375,6 +410,15 @@ func compactDatabase(srcPath string, opts compactOptions) (result *compactResult } src = nil + // Carry the original permissions across BEFORE the fsync — bbolt.Open does + // not chmod a file that already exists, so without this the temp file's + // 0600 would survive the rename. Doing it after the sync would leave the + // mode change itself unflushed, so a crash could land the data with the + // wrong permissions. + if err := os.Chmod(tmpPath, info.Mode().Perm()); err != nil { + return nil, fmt.Errorf("failed to set permissions on compacted database: %w", err) + } + if err := syncPath(tmpPath); err != nil { return nil, fmt.Errorf("failed to sync compacted database: %w", err) } @@ -384,12 +428,6 @@ func compactDatabase(srcPath string, opts compactOptions) (result *compactResult return nil, fmt.Errorf("failed to stat compacted database: %w", err) } - // bbolt.Open does not chmod a file that already exists, so carry the - // original permissions across rather than leaking os.CreateTemp's 0600. - if err := os.Chmod(tmpPath, info.Mode().Perm()); err != nil { - return nil, fmt.Errorf("failed to set permissions on compacted database: %w", err) - } - res := &compactResult{ Path: srcPath, BeforeBytes: beforeBytes, @@ -397,6 +435,20 @@ func compactDatabase(srcPath string, opts compactOptions) (result *compactResult ReclaimedBytes: beforeBytes - afterInfo.Size(), } + // Nothing has held a lock on the source since src.Close() above, and + // compaction of a large database takes minutes. Re-check that the file we + // are about to replace is still the one we compacted, and that nobody has + // taken it, before doing anything destructive. + // + // Without this the swap is a data-loss race: a core that started during + // compaction (or a second `db compact`) ends up holding the OLD, now + // unlinked inode, and every write it makes afterwards vanishes when the + // rename lands. Aborting here is always safe — the original is untouched + // and the temp file is removed by the deferred cleanup. + if err := assertSourceUnchangedAndFree(srcPath, info); err != nil { + return nil, err + } + // The backup is a hard link, not a move: config.db therefore never stops // existing, and the rename below still replaces it in one step. if opts.KeepBackup { @@ -405,8 +457,11 @@ func compactDatabase(srcPath string, opts compactOptions) (result *compactResult return nil, fmt.Errorf("failed to remove stale backup %s: %w", backupPath, err) } if err := os.Link(srcPath, backupPath); err != nil { - if err := copyFile(srcPath, backupPath, info.Mode().Perm()); err != nil { - return nil, fmt.Errorf("failed to create backup %s: %w", backupPath, err) + if cerr := copyFile(srcPath, backupPath, info.Mode().Perm()); cerr != nil { + // A partially written copy is worse than none: the next run + // would treat it as a usable backup. + os.Remove(backupPath) + return nil, fmt.Errorf("failed to create backup %s: %w", backupPath, cerr) } } res.BackupPath = backupPath @@ -416,21 +471,71 @@ func compactDatabase(srcPath string, opts compactOptions) (result *compactResult if err := os.Rename(tmpPath, srcPath); err != nil { // The backup was linked just above and is now meaningless — the // original is still in place, so leaving a .bak behind would only - // confuse the next run. + // confuse the next run. Report a failure to remove it: a stale .bak + // beside an uncompacted database is misleading, not harmless. if res.BackupPath != "" { - os.Remove(res.BackupPath) + if rerr := os.Remove(res.BackupPath); rerr != nil && !os.IsNotExist(rerr) { + return nil, fmt.Errorf("failed to replace %s: %w (and the backup %s could not be removed: %v)", + srcPath, err, res.BackupPath, rerr) + } } return nil, fmt.Errorf("failed to replace %s: %w", srcPath, err) } cleanupTmp = false - // Fsync the directory so the rename itself survives a crash. Best-effort: - // Windows cannot fsync a directory handle, and the data is already durable. - _ = syncPath(dir) + // Fsync the directory so the rename itself survives a crash. Best-effort by + // necessity — Windows cannot fsync a directory handle — but not silent: the + // file data is already durable, so this only weakens the crash window, and + // the operator should know it happened. + if err := syncPath(dir); err != nil { + fmt.Fprintf(os.Stderr, + "warning: could not fsync %s (%v); the swap is complete but a crash in the next moments could lose the directory update\n", + dir, err) + } return res, nil } +// assertSourceUnchangedAndFree verifies, immediately before the destructive +// rename, that the database still looks like the one that was compacted and +// that no process holds it. +// +// The exclusive open is the real check: a running mcpproxy or a concurrent +// compaction fails it. It is closed again straight away because a rename over +// an open file fails on Windows — which leaves a window far smaller than the +// whole compaction it replaces. +func assertSourceUnchangedAndFree(srcPath string, before os.FileInfo) error { + now, err := os.Stat(srcPath) + if err != nil { + return fmt.Errorf("database %s went away during compaction: %w", srcPath, err) + } + if now.Size() != before.Size() || !now.ModTime().Equal(before.ModTime()) { + return fmt.Errorf( + "database %s changed during compaction (something started using it); nothing was replaced — stop mcpproxy and retry", + srcPath) + } + + // ReadOnly: a read-write open makes bbolt load and, on a database whose + // freelist was never persisted, COMMIT a freelist-flush transaction — which + // would modify the very file this check exists to prove untouched. A + // read-only open takes a shared lock, which a running mcpproxy's exclusive + // lock still refuses, so it detects exactly what it needs to. + guard, err := bbolt.Open(srcPath, before.Mode().Perm(), &bbolt.Options{ + Timeout: 500 * time.Millisecond, + ReadOnly: true, + }) + if err != nil { + if errors.Is(err, bbolterrors.ErrTimeout) { + return &storage.DatabaseLockedError{Path: srcPath, Err: err} + } + return fmt.Errorf("failed to re-check database %s before replacing it: %w", srcPath, err) + } + if err := guard.Close(); err != nil { + return fmt.Errorf("failed to release the pre-replace check on %s: %w", srcPath, err) + } + return nil +} + // databaseStats opens the database read-only and reports what compaction would // reclaim. // @@ -541,12 +646,42 @@ func syncPath(path string) error { } // copyFile is the fallback for filesystems that reject hard links. +// copyFile writes srcPath to dstPath via a temp file and a rename. +// +// It must never open dstPath for writing directly. This is the hard-link +// fallback for the backup, and dstPath can BE a hard link to the live database +// (an earlier run's .bak, or a concurrent compaction's) — truncating it would +// destroy config.db itself. A rename replaces the directory entry and leaves +// any other link to the old inode intact. func copyFile(srcPath, dstPath string, perm os.FileMode) error { data, err := os.ReadFile(srcPath) //nolint:gosec // path is derived from the data dir if err != nil { return err } - return os.WriteFile(dstPath, data, perm) + + tmp, err := os.CreateTemp(filepath.Dir(dstPath), filepath.Base(dstPath)+".tmp-*") + if err != nil { + return err + } + tmpName := tmp.Name() + defer os.Remove(tmpName) // no-op once the rename below succeeds + + if _, err := tmp.Write(data); err != nil { + tmp.Close() + return err + } + if err := tmp.Chmod(perm); err != nil { + tmp.Close() + return err + } + if err := tmp.Sync(); err != nil { + tmp.Close() + return err + } + if err := tmp.Close(); err != nil { + return err + } + return os.Rename(tmpName, dstPath) } // humanBytes renders a byte count for the table view; JSON/YAML keep the raw diff --git a/cmd/mcpproxy/db_cmd_test.go b/cmd/mcpproxy/db_cmd_test.go index 8cadb260b..8028eb165 100644 --- a/cmd/mcpproxy/db_cmd_test.go +++ b/cmd/mcpproxy/db_cmd_test.go @@ -358,3 +358,135 @@ func TestCompactDatabaseReportsWhatTheBackupStillCosts(t *testing.T) { t.Errorf("--keep-backup=false must report no backup, got %q / %d", res2.BackupPath, res2.BackupBytes) } } + +// Three properties keep the destructive half of compaction safe. Between +// src.Close() and os.Rename nothing holds the database — a gap that spans the +// whole (minutes-long) compaction of a large file — so each is pinned +// separately. + +// 1. A process holding the database exclusively (a running core) must abort the +// swap. Without this the core keeps the OLD, now-unlinked inode and every +// write it makes afterwards disappears when the rename lands. +func TestPreReplaceCheckAbortsWhenTheDatabaseIsHeld(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + info, err := os.Stat(dbPath) + if err != nil { + t.Fatal(err) + } + + held, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second}) + if err != nil { + t.Fatalf("hold db: %v", err) + } + defer held.Close() + + err = assertSourceUnchangedAndFree(dbPath, info) + if err == nil { + t.Fatal("the pre-replace check passed while another process held the database") + } + var locked *storage.DatabaseLockedError + if !errors.As(err, &locked) { + t.Errorf("want a DatabaseLockedError so the caller can exit 3, got %T: %v", err, err) + } +} + +// 2. A source that changed under us must abort the swap even if nothing holds +// it any more — the compacted copy no longer represents the file. +func TestPreReplaceCheckAbortsWhenTheDatabaseChanged(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + info, err := os.Stat(dbPath) + if err != nil { + t.Fatal(err) + } + + db, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second}) + if err != nil { + t.Fatal(err) + } + if uerr := db.Update(func(tx *bbolt.Tx) error { + b, berr := tx.CreateBucketIfNotExists([]byte("late")) + if berr != nil { + return berr + } + return b.Put([]byte("k"), bytes.Repeat([]byte("v"), 4096)) + }); uerr != nil { + t.Fatal(uerr) + } + if cerr := db.Close(); cerr != nil { + t.Fatal(cerr) + } + + if err := assertSourceUnchangedAndFree(dbPath, info); err == nil { + t.Fatal("the pre-replace check passed on a database that changed during compaction") + } +} + +// 3. Two compactions must not overlap at all. The pre-replace check cannot +// catch them — both take only shared locks while reading — and the danger is +// not just a lost rename: the backup fallback would write into a path that +// is a hard link to the LIVE database. +func TestCompactDatabaseRefusesToRunConcurrently(t *testing.T) { + dir := t.TempDir() + dbPath := seedDB(t, dir) + originalDigest := fileDigest(t, dbPath) + + release, err := acquireCompactLock(dir) + if err != nil { + t.Fatalf("acquire lock: %v", err) + } + + _, err = compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize, KeepBackup: true}) + if err == nil { + t.Fatal("a second compaction ran while another held the lock") + } + if !strings.Contains(err.Error(), "another compaction") { + t.Errorf("the error must name the cause and how to clear it, got: %v", err) + } + if got := fileDigest(t, dbPath); got != originalDigest { + t.Error("the refused compaction must leave the database untouched") + } + + release() + + // And the lock must not leak: the next run succeeds. + if _, err := compactDatabase(dbPath, compactOptions{TxMaxSize: defaultCompactTxMaxSize}); err != nil { + t.Fatalf("compaction failed after the lock was released: %v", err) + } + if _, serr := os.Stat(filepath.Join(dir, dbFileName+".compact.lock")); !os.IsNotExist(serr) { + t.Error("a completed compaction must not leave its lock file behind") + } +} + +// The backup fallback must never truncate its destination in place: that path +// can be a hard link to the live database, and writing through it would +// destroy config.db itself. +func TestCopyFileReplacesTheDestinationInsteadOfTruncatingIt(t *testing.T) { + dir := t.TempDir() + live := filepath.Join(dir, "live.db") + if err := os.WriteFile(live, bytes.Repeat([]byte("L"), 8192), 0600); err != nil { + t.Fatal(err) + } + linked := filepath.Join(dir, "live.db.bak") + if err := os.Link(live, linked); err != nil { + t.Skipf("hard links unsupported here: %v", err) + } + + source := filepath.Join(dir, "source") + if err := os.WriteFile(source, []byte("new contents"), 0600); err != nil { + t.Fatal(err) + } + + if err := copyFile(source, linked, 0600); err != nil { + t.Fatalf("copyFile: %v", err) + } + + surviving, err := os.ReadFile(live) + if err != nil { + t.Fatal(err) + } + if len(surviving) != 8192 { + t.Fatalf("copyFile truncated a hard link to the live database: it is now %d bytes, was 8192", len(surviving)) + } +} diff --git a/internal/config/effective_bounds.go b/internal/config/effective_bounds.go index 17e8828a2..0c7fc4740 100644 --- a/internal/config/effective_bounds.go +++ b/internal/config/effective_bounds.go @@ -9,8 +9,10 @@ package config // constructor. A default that lives only in DefaultConfig() is wrong on those // paths, so the reader is the single resolution point. const ( - defaultMaxResultSizeChars = 500000 // Claude Code's inline-response hard max - defaultActivityMaxSizeMB = 256 // total activity-log size cap in MB + defaultMaxResultSizeChars = 500000 // Claude Code's inline-response hard max + defaultActivityMaxSizeMB = 256 // total activity-log size cap in MB + defaultActivityRetentionDay = 90 // days of activity history retained + defaultActivityMaxRecords = 100000 // activity records retained ) // EffectiveMaxResultSizeChars resolves the `_meta.anthropic/maxResultSizeChars` @@ -47,3 +49,28 @@ func (t *TracingExporterConfig) EffectiveSampleRate() float64 { } return *t.SampleRate } + +// EffectiveActivityRetentionDays and EffectiveActivityMaxRecords resolve the +// two remaining retention counts. +// +// These stay plain ints rather than becoming tri-state pointers because 0 has +// no documented meaning for them — but 0 and absent used to DIVERGE, which is +// the #1175 defect in a quieter form: an omitted key took DefaultConfig's 90 +// days / 100000 records, while an explicit 0 was ignored by +// ActivityService.SetRetentionConfig and silently fell through to that +// service's own much smaller constants (7 days / 10000 records). An operator +// who wrote 0 got a tenth of the retention the documentation promises, and +// saving the config flipped them back. Resolving here makes the two agree. +func (c *Config) EffectiveActivityRetentionDays() int { + if c == nil || c.ActivityRetentionDays <= 0 { + return defaultActivityRetentionDay + } + return c.ActivityRetentionDays +} + +func (c *Config) EffectiveActivityMaxRecords() int { + if c == nil || c.ActivityMaxRecords <= 0 { + return defaultActivityMaxRecords + } + return c.ActivityMaxRecords +} diff --git a/internal/config/zero_value_preservation_test.go b/internal/config/zero_value_preservation_test.go index 000adf79d..48864b821 100644 --- a/internal/config/zero_value_preservation_test.go +++ b/internal/config/zero_value_preservation_test.go @@ -138,16 +138,21 @@ var numericOmitemptyAllowlist = map[string]string{ "Config.ToolCallMaxResponseSize": "non-positive means 'use the default'; there is deliberately no off switch", "Config.ToolCallMaxRecordsPerServer": "non-positive means 'use the default'; there is deliberately no off switch", "Config.ActivityMaxResponseSize": "ActivityService.SetMaxResponseSize ignores non-positive, so 0 and absent both mean 64KB", - "Config.ActivityRetentionDays": "0 and absent both fall back to the built-in retention age", - "Config.ActivityMaxRecords": "0 and absent both fall back to the built-in record cap", + "Config.ActivityRetentionDays": "EffectiveActivityRetentionDays resolves <= 0 to the same 90 days an absent key gets", + "Config.ActivityMaxRecords": "EffectiveActivityMaxRecords resolves <= 0 to the same 100000 an absent key gets", "Config.ActivityCleanupIntervalMin": "0 and absent both fall back to the built-in interval", "Config.TopK": "deprecated and inert; superseded by ToolsLimit", "Config.OAuthExpiryWarningHours": "0 and absent both fall back to the 1.0h default", "Config.ToonMinSavingsPct": "documented as '0/unset -> 15' — the two are the same value by design", // Durations whose own doc comments say zero and unset are the same value. - "Config.Servers.LauncherWaitTimeout": "doc comment: 'Zero or unset -> 30s default'", - "Config.DockerIsolation.Timeout": "container startup timeout; 0 and absent both take the built-in default", + "Config.Servers.LauncherWaitTimeout": "doc comment: 'Zero or unset -> 30s default'", + // The one entry whose justification is "unobservable" rather than "equal": + // this field has exactly one reader, a diagnostics display + // (internal/server/mcp.go:4033 renders it in a doctor payload). It is never + // used as an actual timeout, so an erased 0 changes a reported number and + // nothing else. Give it a real reader and it must be converted. + "Config.DockerIsolation.Timeout": "no functional reader; sole use is the doctor payload at internal/server/mcp.go:4033", "Config.Observability.UsageCacheTTL": "doc comment: 'Default 5s' — 0 and absent both resolve to it", "Config.Observability.UsagePersistInterval": "doc comment: 'Default 30s' — 0 and absent both resolve to it", "Config.Security.ScanTimeoutDefault": "0 and absent both take the built-in scan timeout", @@ -166,6 +171,16 @@ var numericOmitemptyAllowlist = map[string]string{ "Config.OutputValidation.MaxBytes": "EffectiveMaxBytes treats <= 0 as the 5MB default", "Config.OutputValidation.MaxDepth": "EffectiveMaxDepth treats <= 0 as the depth-64 default", + // Server edition (//go:build server). These are invisible to an untagged + // run of this test, which is why it must also be run as + // `go test -tags server ./internal/config`. All four are normalised by + // ServerEditionConfig.Validate, which treats <= 0 as "use the default" + // (internal/config/server_edition_config.go:90-101). + "Config.ServerEdition.SessionTTL": "Validate: <= 0 becomes the 24h default", + "Config.ServerEdition.BearerTokenTTL": "Validate: <= 0 becomes the 24h default", + "Config.ServerEdition.WorkspaceIdleTimeout": "Validate: <= 0 becomes the 30m default", + "Config.ServerEdition.MaxUserServers": "Validate: <= 0 becomes the 20 default", + // 0 and absent both fall back to the DefaultConfig value; there is no // documented meaning for an explicit 0. "Config.DockerRecovery.MaxRetries": "0 means unlimited AND is the zero default, so erasing it is a no-op", @@ -224,3 +239,31 @@ func isNumericKind(k reflect.Kind) bool { return false } } + +// A cross-model review caught two allowlist entries whose stated reason was +// false: an explicit 0 on these did NOT mean the same as an absent key. An +// omitted key took DefaultConfig's 90 days / 100000 records, while an explicit +// 0 was ignored by ActivityService.SetRetentionConfig and fell through to that +// service's own far smaller constants (7 days / 10000). Saving the config then +// erased the 0 and flipped the operator back — the #1175 defect in a quieter +// form, and a tenfold change in how much history is kept. +func TestZeroAndAbsentRetentionCountsResolveTheSame(t *testing.T) { + absent := DefaultConfig() + absent.ActivityRetentionDays = 0 + absent.ActivityMaxRecords = 0 + + assert.Equal(t, defaultActivityRetentionDay, absent.EffectiveActivityRetentionDays(), + "an explicit 0 must resolve to the documented default, not to a smaller service constant") + assert.Equal(t, defaultActivityMaxRecords, absent.EffectiveActivityMaxRecords()) + + var zero Config + assert.Equal(t, defaultActivityRetentionDay, zero.EffectiveActivityRetentionDays(), + "the REST write paths decode into a zero Config and must resolve the same way") + assert.Equal(t, defaultActivityMaxRecords, zero.EffectiveActivityMaxRecords()) + + set := DefaultConfig() + set.ActivityRetentionDays = 3 + set.ActivityMaxRecords = 42 + assert.Equal(t, 3, set.EffectiveActivityRetentionDays(), "a real value is passed through") + assert.Equal(t, 42, set.EffectiveActivityMaxRecords()) +} diff --git a/internal/contracts/types.go b/internal/contracts/types.go index 32e54c340..a0673da98 100644 --- a/internal/contracts/types.go +++ b/internal/contracts/types.go @@ -966,6 +966,10 @@ type ToolCallRecord struct { // cut. ResponseTruncated bool `json:"response_truncated,omitempty"` // Stored copy was shortened ResponseBytes int64 `json:"response_bytes,omitempty"` // Marshalled response size before truncation + // ArgumentsTruncated marks Arguments as a placeholder rather than the + // arguments the tool was called with. Replaying such a record without + // supplying arguments explicitly is refused. + ArgumentsTruncated bool `json:"arguments_truncated,omitempty"` } // GetToolCallsResponse is the response for GET /api/v1/tool-calls diff --git a/internal/runtime/runtime.go b/internal/runtime/runtime.go index d940669a1..7704f6d5c 100644 --- a/internal/runtime/runtime.go +++ b/internal/runtime/runtime.go @@ -330,16 +330,16 @@ func New(cfg *config.Config, cfgPath string, logger *zap.Logger) (*Runtime, erro // Wire activity retention config from config file if cfg.ActivityRetentionDays > 0 || cfg.ActivityMaxRecords > 0 || cfg.ActivityCleanupIntervalMin > 0 || cfg.EffectiveActivityMaxSizeMB() >= 0 { - maxAge := time.Duration(cfg.ActivityRetentionDays) * 24 * time.Hour + maxAge := time.Duration(cfg.EffectiveActivityRetentionDays()) * 24 * time.Hour checkInterval := time.Duration(cfg.ActivityCleanupIntervalMin) * time.Minute // ActivityMaxSizeMB: 0 disables the size cap, so pass the explicit byte // value (>= 0 is applied; -1 would mean "unchanged"). maxSizeBytes := int64(cfg.EffectiveActivityMaxSizeMB()) * 1024 * 1024 - activityService.SetRetentionConfig(maxAge, cfg.ActivityMaxRecords, checkInterval, maxSizeBytes) + activityService.SetRetentionConfig(maxAge, cfg.EffectiveActivityMaxRecords(), checkInterval, maxSizeBytes) logger.Info("Activity retention config applied", zap.Int("max_response_size", cfg.ActivityMaxResponseSize), - zap.Int("retention_days", cfg.ActivityRetentionDays), - zap.Int("max_records", cfg.ActivityMaxRecords), + zap.Int("retention_days", cfg.EffectiveActivityRetentionDays()), + zap.Int("max_records", cfg.EffectiveActivityMaxRecords()), zap.Int("max_size_mb", cfg.EffectiveActivityMaxSizeMB()), zap.Int("cleanup_interval_min", cfg.ActivityCleanupIntervalMin)) } @@ -1196,26 +1196,27 @@ func (r *Runtime) GetToolCalls(limit, offset int, scope storage.ToolCallScope) ( contractCalls := make([]*contracts.ToolCallRecord, len(pagedCalls)) for i, call := range pagedCalls { contractCalls[i] = &contracts.ToolCallRecord{ - ID: call.ID, - ServerID: call.ServerID, - ServerName: call.ServerName, - ToolName: call.ToolName, - Arguments: call.Arguments, - Response: call.Response, - Error: call.Error, - Duration: call.Duration, - Timestamp: call.Timestamp, - ConfigPath: call.ConfigPath, - RequestID: call.RequestID, - Metrics: convertTokenMetrics(call.Metrics), - ParentCallID: call.ParentCallID, - ExecutionType: call.ExecutionType, - MCPSessionID: call.MCPSessionID, - MCPClientName: call.MCPClientName, - MCPClientVersion: call.MCPClientVersion, - Annotations: convertToolAnnotations(call.Annotations), - ResponseTruncated: call.ResponseTruncated, - ResponseBytes: call.ResponseBytes, + ID: call.ID, + ServerID: call.ServerID, + ServerName: call.ServerName, + ToolName: call.ToolName, + Arguments: call.Arguments, + Response: call.Response, + Error: call.Error, + Duration: call.Duration, + Timestamp: call.Timestamp, + ConfigPath: call.ConfigPath, + RequestID: call.RequestID, + Metrics: convertTokenMetrics(call.Metrics), + ParentCallID: call.ParentCallID, + ExecutionType: call.ExecutionType, + MCPSessionID: call.MCPSessionID, + MCPClientName: call.MCPClientName, + MCPClientVersion: call.MCPClientVersion, + Annotations: convertToolAnnotations(call.Annotations), + ResponseTruncated: call.ResponseTruncated, + ResponseBytes: call.ResponseBytes, + ArgumentsTruncated: call.ArgumentsTruncated, } } @@ -1242,26 +1243,27 @@ func (r *Runtime) GetToolCallByID(id string) (*contracts.ToolCallRecord, error) for _, call := range calls { if call.ID == id { return &contracts.ToolCallRecord{ - ID: call.ID, - ServerID: call.ServerID, - ServerName: call.ServerName, - ToolName: call.ToolName, - Arguments: call.Arguments, - Response: call.Response, - Error: call.Error, - Duration: call.Duration, - Timestamp: call.Timestamp, - ConfigPath: call.ConfigPath, - RequestID: call.RequestID, - Metrics: convertTokenMetrics(call.Metrics), - ParentCallID: call.ParentCallID, - ExecutionType: call.ExecutionType, - MCPSessionID: call.MCPSessionID, - MCPClientName: call.MCPClientName, - MCPClientVersion: call.MCPClientVersion, - Annotations: convertToolAnnotations(call.Annotations), - ResponseTruncated: call.ResponseTruncated, - ResponseBytes: call.ResponseBytes, + ID: call.ID, + ServerID: call.ServerID, + ServerName: call.ServerName, + ToolName: call.ToolName, + Arguments: call.Arguments, + Response: call.Response, + Error: call.Error, + Duration: call.Duration, + Timestamp: call.Timestamp, + ConfigPath: call.ConfigPath, + RequestID: call.RequestID, + Metrics: convertTokenMetrics(call.Metrics), + ParentCallID: call.ParentCallID, + ExecutionType: call.ExecutionType, + MCPSessionID: call.MCPSessionID, + MCPClientName: call.MCPClientName, + MCPClientVersion: call.MCPClientVersion, + Annotations: convertToolAnnotations(call.Annotations), + ResponseTruncated: call.ResponseTruncated, + ResponseBytes: call.ResponseBytes, + ArgumentsTruncated: call.ArgumentsTruncated, }, nil } } @@ -1293,26 +1295,27 @@ func (r *Runtime) GetServerToolCalls(serverName string, limit int) ([]*contracts contractCalls := make([]*contracts.ToolCallRecord, len(calls)) for i, call := range calls { contractCalls[i] = &contracts.ToolCallRecord{ - ID: call.ID, - ServerID: call.ServerID, - ServerName: call.ServerName, - ToolName: call.ToolName, - Arguments: call.Arguments, - Response: call.Response, - Error: call.Error, - Duration: call.Duration, - Timestamp: call.Timestamp, - ConfigPath: call.ConfigPath, - RequestID: call.RequestID, - Metrics: convertTokenMetrics(call.Metrics), - ParentCallID: call.ParentCallID, - ExecutionType: call.ExecutionType, - MCPSessionID: call.MCPSessionID, - MCPClientName: call.MCPClientName, - MCPClientVersion: call.MCPClientVersion, - Annotations: convertToolAnnotations(call.Annotations), - ResponseTruncated: call.ResponseTruncated, - ResponseBytes: call.ResponseBytes, + ID: call.ID, + ServerID: call.ServerID, + ServerName: call.ServerName, + ToolName: call.ToolName, + Arguments: call.Arguments, + Response: call.Response, + Error: call.Error, + Duration: call.Duration, + Timestamp: call.Timestamp, + ConfigPath: call.ConfigPath, + RequestID: call.RequestID, + Metrics: convertTokenMetrics(call.Metrics), + ParentCallID: call.ParentCallID, + ExecutionType: call.ExecutionType, + MCPSessionID: call.MCPSessionID, + MCPClientName: call.MCPClientName, + MCPClientVersion: call.MCPClientVersion, + Annotations: convertToolAnnotations(call.Annotations), + ResponseTruncated: call.ResponseTruncated, + ResponseBytes: call.ResponseBytes, + ArgumentsTruncated: call.ArgumentsTruncated, } } @@ -1369,9 +1372,20 @@ func (r *Runtime) ReplayToolCall(ctx context.Context, id string, arguments map[s return nil, fmt.Errorf("tool call not found: %s", id) } - // Use modified arguments if provided, otherwise use original + // Use modified arguments if provided, otherwise use original. + // + // Refuse to reuse arguments that storage shortened (#1176). The stored + // value is then a {truncated, original_bytes, preview} placeholder, and + // re-dispatching THAT would call the upstream tool with nonsense — which + // for a call_tool_write or destructive replay reaches a real system. The + // caller can still replay by supplying the arguments explicitly. callArgs := arguments if callArgs == nil { + if originalCall.ArgumentsTruncated { + return nil, fmt.Errorf( + "cannot replay tool call %s: its stored arguments were shortened to stay within tool_call_max_response_size, "+ + "so they are a placeholder rather than the original input; supply arguments explicitly to replay it", id) + } callArgs = originalCall.Arguments } @@ -1442,20 +1456,21 @@ func (r *Runtime) ReplayToolCall(ctx context.Context, id string, arguments map[s // Convert to contract type return &contracts.ToolCallRecord{ - ID: newCall.ID, - ServerID: newCall.ServerID, - ServerName: newCall.ServerName, - ToolName: newCall.ToolName, - Arguments: newCall.Arguments, - Response: newCall.Response, - Error: newCall.Error, - Duration: newCall.Duration, - Timestamp: newCall.Timestamp, - ConfigPath: newCall.ConfigPath, - RequestID: newCall.RequestID, - Annotations: convertToolAnnotations(newCall.Annotations), - ResponseTruncated: newCall.ResponseTruncated, - ResponseBytes: newCall.ResponseBytes, + ID: newCall.ID, + ServerID: newCall.ServerID, + ServerName: newCall.ServerName, + ToolName: newCall.ToolName, + Arguments: newCall.Arguments, + Response: newCall.Response, + Error: newCall.Error, + Duration: newCall.Duration, + Timestamp: newCall.Timestamp, + ConfigPath: newCall.ConfigPath, + RequestID: newCall.RequestID, + Annotations: convertToolAnnotations(newCall.Annotations), + ResponseTruncated: newCall.ResponseTruncated, + ResponseBytes: newCall.ResponseBytes, + ArgumentsTruncated: newCall.ArgumentsTruncated, }, nil } @@ -1477,26 +1492,27 @@ func (r *Runtime) GetToolCallsBySession(sessionID string, limit, offset int, sco records := make([]*contracts.ToolCallRecord, 0, len(storageRecords)) for _, rec := range storageRecords { records = append(records, &contracts.ToolCallRecord{ - ID: rec.ID, - ServerID: rec.ServerID, - ServerName: rec.ServerName, - ToolName: rec.ToolName, - Arguments: rec.Arguments, - Response: rec.Response, - Error: rec.Error, - Duration: rec.Duration, - Timestamp: rec.Timestamp, - ConfigPath: rec.ConfigPath, - RequestID: rec.RequestID, - Metrics: convertTokenMetrics(rec.Metrics), - ParentCallID: rec.ParentCallID, - ExecutionType: rec.ExecutionType, - MCPSessionID: rec.MCPSessionID, - MCPClientName: rec.MCPClientName, - MCPClientVersion: rec.MCPClientVersion, - Annotations: convertToolAnnotations(rec.Annotations), - ResponseTruncated: rec.ResponseTruncated, - ResponseBytes: rec.ResponseBytes, + ID: rec.ID, + ServerID: rec.ServerID, + ServerName: rec.ServerName, + ToolName: rec.ToolName, + Arguments: rec.Arguments, + Response: rec.Response, + Error: rec.Error, + Duration: rec.Duration, + Timestamp: rec.Timestamp, + ConfigPath: rec.ConfigPath, + RequestID: rec.RequestID, + Metrics: convertTokenMetrics(rec.Metrics), + ParentCallID: rec.ParentCallID, + ExecutionType: rec.ExecutionType, + MCPSessionID: rec.MCPSessionID, + MCPClientName: rec.MCPClientName, + MCPClientVersion: rec.MCPClientVersion, + Annotations: convertToolAnnotations(rec.Annotations), + ResponseTruncated: rec.ResponseTruncated, + ResponseBytes: rec.ResponseBytes, + ArgumentsTruncated: rec.ArgumentsTruncated, }) } diff --git a/internal/storage/server_identity.go b/internal/storage/server_identity.go index 4387d4525..a2d7483c9 100644 --- a/internal/storage/server_identity.go +++ b/internal/storage/server_identity.go @@ -84,6 +84,12 @@ type ToolCallRecord struct { // shortened record from a small one. ResponseTruncated bool `json:"response_truncated,omitempty"` ResponseBytes int64 `json:"response_bytes,omitempty"` + + // ArgumentsTruncated says the stored Arguments are a placeholder, not the + // arguments the tool was called with. Replay MUST refuse to reuse them: + // re-dispatching the placeholder would call the upstream tool with + // nonsense, and call_tool_write / destructive variants reach real systems. + ArgumentsTruncated bool `json:"arguments_truncated,omitempty"` } // DiagnosticRecord represents a diagnostic event for a server diff --git a/internal/storage/tool_call_bounds.go b/internal/storage/tool_call_bounds.go index 6d3cbf764..143d755a1 100644 --- a/internal/storage/tool_call_bounds.go +++ b/internal/storage/tool_call_bounds.go @@ -22,10 +22,18 @@ const ( // a recent window rather than everything. DefaultToolCallMaxRecordsPerServer = 1000 - // toolCallPreviewBytes is how much of an oversized response survives as a - // readable head on the stored record. + // toolCallPreviewBytes is how much of an oversized payload survives as a + // readable head on the stored record. It is an upper bound: previewBytes + // shrinks it further so the placeholder itself always fits inside the + // configured cap, which a fixed 2KB head would blow through on a cap of, + // say, 1KB. toolCallPreviewBytes = 2048 + // toolCallEnvelopeBytes reserves room for the placeholder's other fields + // (truncated, original_bytes, note and the JSON punctuation) so the whole + // object stays under the cap, not just its preview. + toolCallEnvelopeBytes = 512 + // serverIdentitiesBucket holds the ServerIdentity records that map a // server NAME to the SHA-256 id its tool-call bucket is keyed by. serverIdentitiesBucket = "server_identities" @@ -95,6 +103,7 @@ func boundToolCallResponse(record *ToolCallRecord, maxBytes int) *ToolCallRecord if args := boundToolCallArguments(record.Arguments, maxBytes); args != nil { copied := *record copied.Arguments = args + copied.ArgumentsTruncated = true bounded = &copied } if record.Response == nil { @@ -118,7 +127,7 @@ func boundToolCallResponse(record *ToolCallRecord, maxBytes int) *ToolCallRecord bounded.Response = map[string]interface{}{ "truncated": true, "original_bytes": len(encoded), - "preview": truncateUTF8(string(encoded), toolCallPreviewBytes), + "preview": truncateUTF8(string(encoded), previewBytes(maxBytes)), "note": "response omitted: exceeded tool_call_max_response_size. " + "The full response was delivered to the caller; only this stored copy is shortened.", } @@ -146,12 +155,26 @@ func boundToolCallArguments(args map[string]interface{}, maxBytes int) map[strin return map[string]interface{}{ "truncated": true, "original_bytes": len(encoded), - "preview": truncateUTF8(string(encoded), toolCallPreviewBytes), + "preview": truncateUTF8(string(encoded), previewBytes(maxBytes)), "note": "arguments omitted: exceeded tool_call_max_response_size. " + "The full arguments were sent to the upstream server; only this stored copy is shortened.", } } +// previewBytes is how much of the payload the placeholder may carry, given the +// cap the whole record has to fit inside. A truncation marker that is itself +// over the limit would defeat the point of configuring a small one. +func previewBytes(maxBytes int) int { + room := maxBytes - toolCallEnvelopeBytes + if room < 0 { + room = 0 + } + if room < toolCallPreviewBytes { + return room + } + return toolCallPreviewBytes +} + // truncateUTF8 cuts s to at most maxBytes without splitting a rune, so the // preview stays valid JSON text. func truncateUTF8(s string, maxBytes int) string { @@ -166,8 +189,14 @@ func truncateUTF8(s string, maxBytes int) string { } // pruneToolCallBucket evicts the oldest records until at most maxRecords -// remain. Keys are "_", so cursor order is chronological and -// the oldest are at the front. +// remain. +// +// Keys are "_" and bbolt orders them BYTEWISE, which matches +// chronological order only because UnixNano is a fixed 19 digits for every +// timestamp between 2001 and 2262 — so all real keys have equal width and +// compare digit by digit. Change the key format (a shorter unit, a prefix, a +// synthetic timestamp) and this stops holding: "9_x" sorts after "10_y" +// bytewise, and the eviction would drop the record it just wrote. // // It walks BACKWARDS from the newest key and stops after maxRecords+1 steps, // so the cost of the common case (a bucket already at its cap) is bounded by @@ -240,7 +269,13 @@ func (m *Manager) PruneOrphanToolCalls(configuredServers []string) (int, error) removed := 0 err := m.db.db.Update(func(tx *bbolt.Tx) error { - keep, identitiesKnown, err := liveToolCallOwners(tx, configured) + keep, identitiesKnown, err := liveToolCallOwners(tx, configured, func(id string) { + // Report it: an identity that cannot be read pins its history + // bucket forever, because no later sweep can decide whose it is. + // Silence would make that look like normal growth. + m.logger.Warnw("Server identity record is unreadable; keeping its tool-call history and skipping it in the orphan sweep", + "server_id", id, "bucket", toolCallsBucketName(id)) + }) if err != nil { return err } @@ -281,7 +316,7 @@ func (m *Manager) PruneOrphanToolCalls(configuredServers []string) (int, error) // kept under every identity it has ever had (its attributes change over time, // and each variant hashes to a different id) and under its bare name, which is // what a caller that never registered an identity would have written. -func liveToolCallOwners(tx *bbolt.Tx, configured map[string]bool) (keep map[string]bool, identitiesKnown bool, err error) { +func liveToolCallOwners(tx *bbolt.Tx, configured map[string]bool, onUnreadable func(id string)) (keep map[string]bool, identitiesKnown bool, err error) { keep = map[string]bool{codeExecutionServerID: true} for name := range configured { keep[name] = true @@ -292,14 +327,22 @@ func liveToolCallOwners(tx *bbolt.Tx, configured map[string]bool) (keep map[stri return keep, false, nil } - err = bucket.ForEach(func(_, value []byte) error { + err = bucket.ForEach(func(key, value []byte) error { + identitiesKnown = true + var identity ServerIdentity if uerr := json.Unmarshal(value, &identity); uerr != nil { - // An unreadable identity is a reason to keep data, not delete it. - identitiesKnown = true + // An unreadable identity is a reason to KEEP data, not delete it — + // and keeping it is possible because the bucket key IS the identity + // id (saveServerIdentity does Put([]byte(identity.ID), …)), so the + // history bucket can be spared without being able to read the + // record's server name. + keep[string(key)] = true + if onUnreadable != nil { + onUnreadable(string(key)) + } return nil } - identitiesKnown = true if configured[identity.ServerName] { keep[identity.ID] = true } @@ -336,6 +379,11 @@ func (m *Manager) deleteToolCallHistoryForName(name string) error { if err := bucket.ForEach(func(_, value []byte) error { var identity ServerIdentity if err := json.Unmarshal(value, &identity); err != nil { + // Cannot read the name, so cannot rule this identity out. + // Deleting a stranger's history would be worse than leaving + // one behind, so this only widens the delete when the id + // looks like this server's own: the ONLY safe use of an + // unreadable record here is none. return nil //nolint:nilerr // an unreadable identity is not a reason to fail a delete } if identity.ServerName == name { diff --git a/internal/storage/tool_call_bounds_test.go b/internal/storage/tool_call_bounds_test.go index b86307bd2..a6ac7aa45 100644 --- a/internal/storage/tool_call_bounds_test.go +++ b/internal/storage/tool_call_bounds_test.go @@ -8,6 +8,7 @@ import ( "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" + "go.etcd.io/bbolt" "go.uber.org/zap" "github.com/smart-mcp-proxy/mcpproxy-go/internal/config" @@ -276,3 +277,93 @@ func TestRecordToolCallKeepsSmallArgumentsVerbatim(t *testing.T) { require.Len(t, stored, 1) assert.Equal(t, "/big", stored[0].Arguments["path"], "small arguments are stored verbatim") } + +// A cross-model review found this: the sweep skipped an identity whose JSON +// would not unmarshal but still counted the store as populated, so a live +// server's history — keyed by a hash the sweep could no longer resolve to a +// name — was treated as an orphan and deleted. +// +// The bucket KEY is the identity id (saveServerIdentity puts under +// identity.ID), so an unreadable record can still be spared. +func TestPruneOrphanToolCallsKeepsHistoryBehindAnUnreadableIdentity(t *testing.T) { + mgr := newBoundsManager(t) + + keptID := registerServer(t, mgr, "kept") + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-1", keptID, 10))) + + // A second, readable identity so the sweep does not abort for lack of any. + registerServer(t, mgr, "other") + + // Corrupt the live server's identity record in place. + require.NoError(t, mgr.db.db.Update(func(tx *bbolt.Tx) error { + return tx.Bucket([]byte(serverIdentitiesBucket)).Put([]byte(keptID), []byte("{not json")) + })) + + removed, err := mgr.PruneOrphanToolCalls([]string{"kept", "other"}) + require.NoError(t, err) + assert.Zero(t, removed) + + stored, err := mgr.GetServerToolCalls(keptID, 10) + require.NoError(t, err) + assert.Len(t, stored, 1, + "an identity that cannot be read is a reason to keep its history, not to delete it") +} + +// The argument cap has a consequence beyond storage: POST +// /api/v1/tool-calls/{id}/replay re-dispatches a stored call's arguments when +// the caller supplies none. Replaying the {truncated, original_bytes, preview} +// placeholder would call the upstream tool with nonsense — and a +// call_tool_write or destructive replay reaches a real system. The record has +// to say so, so replay can refuse. +func TestTruncatedArgumentsAreFlaggedForReplay(t *testing.T) { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(4096, 0) + + rec := bigToolCall("call-1", "srv", 10) + rec.Arguments = map[string]interface{}{"text": strings.Repeat("q", 200_000)} + require.NoError(t, mgr.RecordToolCall(rec)) + + stored, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + assert.True(t, stored[0].ArgumentsTruncated, + "a record whose arguments were shortened must be marked unreplayable") + assert.False(t, rec.ArgumentsTruncated, "the caller's record stays untouched") + + require.NoError(t, mgr.RecordToolCall(bigToolCall("call-2", "srv", 10))) + all, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + for _, c := range all { + if c.ID == "call-2" { + assert.False(t, c.ArgumentsTruncated, "a record with small arguments stays replayable") + } + } +} + +// A cross-model review caught this: the placeholder carried a fixed 2KB +// preview whatever the cap was, so configuring a small cap produced a +// "truncated" record LARGER than the limit it was meant to enforce. +func TestTruncationPlaceholderFitsInsideASmallCap(t *testing.T) { + for _, cap := range []int{256, 1024, 4096} { + mgr := newBoundsManager(t) + mgr.SetToolCallLimits(cap, 0) + + rec := bigToolCall("call-1", "srv", 500_000) + rec.Arguments = map[string]interface{}{"text": strings.Repeat("q", 500_000)} + require.NoError(t, mgr.RecordToolCall(rec)) + + stored, err := mgr.GetServerToolCalls("srv", 10) + require.NoError(t, err) + require.Len(t, stored, 1) + + resp, err := json.Marshal(stored[0].Response) + require.NoError(t, err) + args, err := json.Marshal(stored[0].Arguments) + require.NoError(t, err) + + assert.LessOrEqual(t, len(resp), cap, + "cap=%d: the stored response placeholder must fit inside the configured cap, got %d bytes", cap, len(resp)) + assert.LessOrEqual(t, len(args), cap, + "cap=%d: the stored arguments placeholder must fit inside the configured cap, got %d bytes", cap, len(args)) + } +} diff --git a/oas/docs.go b/oas/docs.go index c039c50e7..10ba71894 100644 --- a/oas/docs.go +++ b/oas/docs.go @@ -6,7 +6,7 @@ import "github.com/swaggo/swag/v2" const docTemplate = `{ "schemes": {{ marshal .Schemes }}, - "components": {"schemas":{"config.ConcurrencyDefaults":{"description":"ServerConcurrencyDefaults is scope (b) of FR-020: the blanket per-server\ndefault set inherited by every server that does not override a setting.\nAbsent (the default) = no per-server limiting unless a server configures\nit explicitly. File/API-configured only — no env scheme (FR-022).","properties":{"max_concurrent_requests":{"type":"integer"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"}},"type":"object"},"config.Config":{"properties":{"activity_cleanup_interval_min":{"description":"Background cleanup interval in minutes (default: 60)","type":"integer"},"activity_max_records":{"description":"Max records before pruning (default: 100000)","type":"integer"},"activity_max_response_size":{"description":"Response truncation limit in bytes (default: 65536)","type":"integer"},"activity_max_size_mb":{"description":"ActivityMaxSizeMB caps the total activity-log size in MB before the\noldest records are pruned. Omit the key for the 256MB default; set it to\n0 to disable the size cap.","type":"integer"},"activity_retention_days":{"description":"Activity logging settings (RFC-003)","type":"integer"},"aggregate_upstream_prompts":{"description":"AggregateUpstreamPrompts, when true, aggregates every connected upstream\nserver's advertised MCP prompts into mcpproxy's own prompts/list\n(exposed as \"\u003cserver\u003e__\u003cprompt\u003e\"). OFF by default: users are safe by\ndefault and opt in deliberately. EnablePrompts still governs the built-in\nprompts + the prompts capability; this flag gates ONLY the upstream\naggregation performed by RefreshPrompts. Hot-reloadable.","type":"boolean"},"allow_private_registry_fetch":{"description":"AllowPrivateRegistryFetch opts out of the registry SSRF guard (MCP-1076,\nCWE-918). By default (false) registry fetches refuse any host that is — or\nresolves to — a non-routable address (loopback, RFC1918/CGNAT private,\nlink-local incl. the 169.254.169.254 cloud-metadata endpoint), so a\nmalicious or typo'd registry source cannot turn the daemon into a\nrequest-forgery vector against internal services.\n\nThis opt-out is BLANKET (all-or-nothing): setting it true disables the\nguard for EVERY non-routable range at once — loopback, RFC1918/CGNAT\nprivate, link-local AND the 169.254.169.254 cloud-metadata endpoint. There\nis no way to allow only loopback; enabling it for a localhost dev registry\nalso re-opens the cloud-metadata SSRF vector. Set true ONLY when you\nintentionally run a trusted registry mirror on an internal/private address,\nideally on a host with no cloud-metadata exposure. The change takes effect\nonly on daemon (re)start or config reload.","type":"boolean"},"allow_server_add":{"type":"boolean"},"allow_server_remove":{"type":"boolean"},"api_key":{"description":"Security settings","type":"string"},"call_tool_timeout":{"type":"string"},"check_server_repo":{"description":"Repository detection settings","type":"boolean"},"code_execution_max_parallel":{"description":"Default concurrency for call_tools() batches (1-32, default: 8)","type":"integer"},"code_execution_max_tool_calls":{"description":"Max tool calls per execution (0 = unlimited, default: 0)","type":"integer"},"code_execution_pool_size":{"description":"JavaScript runtime pool size (default: 10)","type":"integer"},"code_execution_timeout_ms":{"description":"Timeout in milliseconds (default: 120000, max: 600000)","type":"integer"},"data_dir":{"type":"string"},"debug_search":{"type":"boolean"},"direct_tool_response_mode":{"description":"DirectToolResponseMode selects the serialization of the DIRECT\nenumeration surface (Spec 102). Valid values: \"\" (= full), \"full\"\n(default: today's schema-bearing entries), \"deferred\" (description +\ncompact signature, with a minimal permissive input schema; upstream\ninputSchema and outputSchema are stripped and recovered on demand via\ndescribe_tool).\n\nDeliberately NOT an extension of tool_response_mode: reusing that axis\nwould silently change /mcp/all output for every deployment already\nrunning compact, which FR-015 forbids. Serialization-only — it never\nchanges WHICH tools are listed, only how (FR-008). Hot-reloadable.","type":"string"},"disable_management":{"type":"boolean"},"docker_isolation":{"$ref":"#/components/schemas/config.DockerIsolationConfig"},"docker_recovery":{"$ref":"#/components/schemas/config.DockerRecoveryConfig"},"enable_code_execution":{"description":"Code execution settings","type":"boolean"},"enable_prompts":{"description":"Prompts settings","type":"boolean"},"enable_socket":{"description":"Enable Unix socket/named pipe for local IPC (default: true)","type":"boolean"},"enable_tray":{"description":"Deprecated: EnableTray is unused and has no runtime effect. Kept for backward compatibility.","type":"boolean"},"environment":{"$ref":"#/components/schemas/secureenv.EnvConfig"},"features":{"$ref":"#/components/schemas/config.FeatureFlags"},"forward_proxy_env":{"description":"ForwardProxyEnv opts in to forwarding the ambient HTTP(S)/ALL/NO/FTP proxy\nenvironment variables to spawned stdio upstream servers (MCP-2769). OFF by\ndefault: proxy URLs commonly embed credentials (http://user:pass@proxy), so\nforwarding them to every upstream is a credential-leak risk. When enabled,\nvalues are forwarded with their userinfo (credentials) redacted.","type":"boolean"},"health_check_interval":{"description":"Discovery \u0026 health-check cadence (spec 074, #608). Both are *Duration\ntri-state pointers: nil = inherit the built-in default; a pointer to 0s =\nthe loop is disabled; a positive value = that interval. Defaults live only\nin the resolvers (ResolveHealthCheckInterval / ResolveToolDiscoveryInterval)\nso an unset key behaves exactly as before this feature (SC-005). Validated\nin Validate(): health-check ∈ {0} ∪ [5s,1h]; tool-discovery ∈ {0} ∪ [30s,24h].","type":"string"},"http_idle_timeout":{"description":"HTTPIdleTimeout caps how long an idle keep-alive connection is kept open.\nUnset = 180s. \"0s\" removes the dedicated idle deadline, but net/http then\nfalls back to ReadTimeout — idle is fully unbounded only when\nhttp_read_timeout is also \"0s\". Requires a restart.","type":"string"},"http_read_timeout":{"description":"HTTPReadTimeout caps how long reading a whole request (headers + body)\nmay take. Unset = 120s; \"0s\" disables it. Requires a restart.","type":"string"},"http_write_timeout":{"description":"HTTPWriteTimeout caps how long producing a whole response may take on\nnon-streaming endpoints (REST, Web UI, health). Unset = 120s; \"0s\"\ndisables it globally. MCP and SSE /events routes are exempt by design.","type":"string"},"init_timeout":{"description":"InitTimeout is the global default deadline for an upstream's MCP\n` + "`" + `initialize` + "`" + ` handshake (MCP-3322 / GH #760). *Duration tri-state: nil =\ninherit the built-in 30s default; a positive value = that deadline. A\nper-server InitTimeout overrides this. Resolved by ResolveInitTimeout;\nvalidated to {0} ∪ [1s, 30m] in Validate(). Servers doing legitimate\nfirst-run warmup (cache/index build) before answering ` + "`" + `initialize` + "`" + ` can\nraise this so they are not killed mid-startup.","type":"string"},"instructions":{"description":"Instructions text returned in the MCP initialize response to guide AI agents.\nWhen empty, a built-in default is used that explains retrieve_tools workflow.","type":"string"},"intent_declaration":{"$ref":"#/components/schemas/config.IntentDeclarationConfig"},"listen":{"type":"string"},"logging":{"$ref":"#/components/schemas/config.LogConfig"},"max_concurrent_requests":{"description":"Concurrency limits (spec 093, GH #955). Scope (a) of FR-020: the GLOBAL\nAGGREGATE limiter — one proxy-wide cap on concurrently running upstream\ntool calls, with its own bounded wait queue. Tri-state pointers: absent =\nthe limiter does not exist (default, zero behavior change); an explicit 0\nmax also disables it; positive = that cap. This scope is NEVER a\nper-server inheritance source — per-server values come from\nServerConcurrencyDefaults / the per-server overrides — but a server's\neffective concurrency is bounded by BOTH its own limiter and this one.\nResolved by ResolveGlobalConcurrency; hot-reloadable; overridable via\nMCPPROXY_MAX_CONCURRENT_REQUESTS / _QUEUE_SIZE / _QUEUE_TIMEOUT (FR-022).","type":"integer"},"max_result_size_chars":{"description":"MaxResultSizeChars is advertised on every tool as\n` + "`" + `_meta.anthropic/maxResultSizeChars` + "`" + `; it raises Claude Code's\ninline-response ceiling from 50k to up to 500k chars. Omit the key for\nthe 500000 default; set it to 0 to disable the annotation.","type":"integer"},"mcpServers":{"items":{"$ref":"#/components/schemas/config.ServerConfig"},"type":"array","uniqueItems":false},"oauth_expiry_warning_hours":{"description":"Health status settings","type":"number"},"observability":{"$ref":"#/components/schemas/config.ObservabilityConfig"},"output_sanitisation":{"$ref":"#/components/schemas/config.OutputSanitisationConfig"},"output_validation":{"$ref":"#/components/schemas/config.OutputValidationConfig"},"profiles":{"description":"Profiles are optional named, server-scoped views exposed at /mcp/p/\u003cname\u003e\n(Spec 057). Absent/empty is fully supported — /mcp is unchanged and configs\nwithout this key serialize byte-identically (SC-004).","items":{"$ref":"#/components/schemas/config.ProfileConfig"},"type":"array","uniqueItems":false},"quarantine_enabled":{"description":"QuarantineEnabled controls whether quarantine is active. It gates two\nthings together:\n 1. Server-level auto-quarantine for newly added servers (issue #370).\n When true, servers added via the upstream_servers MCP tool or the\n REST API default to quarantined=true; when false, they default to\n quarantined=false. Explicit per-request values always win.\n 2. Tool-level quarantine (Spec 032): per-tool SHA-256 approval of\n tool descriptions/schemas.\nWhen nil (default), quarantine is enabled (secure by default). Set to\nexplicit false to opt out of both. Per-server SkipQuarantine still\napplies for the tool-level check on individual servers.","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"read_only_mode":{"type":"boolean"},"registries":{"description":"Registries configuration for MCP server discovery","items":{"$ref":"#/components/schemas/config.RegistryEntry"},"type":"array","uniqueItems":false},"registries_locked":{"description":"RegistriesLocked is an enterprise stub knob (MCP-866): when true, runtime\nadditions of custom registries (e.g. ` + "`" + `registry add-source` + "`" + `, the REST/MCP\nadd-source surface) are rejected so an administrator can pin the discovery\nsources. Built-in defaults are unaffected. Documented but otherwise inert\nbeyond the add-source rejection.","type":"boolean"},"require_mcp_auth":{"description":"Require authentication on /mcp endpoint (default: false)","type":"boolean"},"reveal_secret_headers":{"description":"RevealSecretHeaders, when true, disables the redaction of the\nsecret-bearing server fields — sensitive header values (Authorization,\nX-API-Key, Cookie, …), env-var secrets, and URL query credentials — in\nresponses from the ` + "`" + `upstream_servers` + "`" + ` MCP tool, the ` + "`" + `/api/v1/servers` + "`" + `\nREST API, and the SSE event stream. It also lets URL secrets echoed\ninto last_error / health.detail through unscrubbed.\n\nDefault false — sensitive values are surfaced masked as\n` + "`" + `••••\u003clast2\u003e (\u003cN\u003e chars)` + "`" + ` (error strings use ` + "`" + `***REDACTED***` + "`" + `) so an\nMCP agent cannot read Bearer tokens / API keys / URL secrets out of\nanother upstream's config (PR #425, issue #872). ${env:…}/${keyring:…}\nreferences are labels, not secrets, and pass through unchanged.\n\nThe Web UI / macOS tray edit forms work without seeing the real\nvalues: PATCH /api/v1/servers/{id} deep-merges (omitted keys are\npreserved, see ` + "`" + `headers_remove` + "`" + ` / ` + "`" + `env_remove` + "`" + ` for explicit\ndeletes), so clients compute a diff and only send the keys that\nactually changed. Redacted-but-unchanged values never round-trip\n— the backend keeps the real string. Set this to true if a\ndownstream tool genuinely needs raw values in the response.","type":"boolean"},"routing_mode":{"description":"Routing mode (Spec 031): how MCP tools are exposed to clients\nValid values: \"retrieve_tools\" (default), \"direct\", \"code_execution\"","type":"string"},"security":{"$ref":"#/components/schemas/config.SecurityConfig"},"sensitive_data_detection":{"$ref":"#/components/schemas/config.SensitiveDataDetectionConfig"},"server_concurrency_defaults":{"$ref":"#/components/schemas/config.ConcurrencyDefaults"},"telemetry":{"$ref":"#/components/schemas/config.TelemetryConfig"},"tls":{"$ref":"#/components/schemas/config.TLSConfig"},"tokenizer":{"$ref":"#/components/schemas/config.TokenizerConfig"},"tool_call_max_records_per_server":{"description":"Calls retained per server (default: 1000)","type":"integer"},"tool_call_max_response_size":{"description":"Bounds for the per-server tool-call history behind GET /api/v1/tool-calls\n(#1176). It is a recent-debugging window, not an audit log — the activity\nlog is the durable record — and it kept every upstream response whole,\nper server, forever. A non-positive value means \"use the default\", not\n\"disable\": this store must never be unbounded again, so there is\ndeliberately no off switch.","type":"integer"},"tool_discovery_interval":{"type":"string"},"tool_response_limit":{"type":"integer"},"tool_response_mode":{"description":"Tool response mode (Spec 085): how retrieve_tools serializes results.\nValid values: \"\" (= full), \"full\" (default: today's schema-bearing\nentries), \"compact\" (signature + first-sentence entries). Orthogonal to\nrouting_mode — routing_mode selects the tool SURFACE, this selects the\nSERIALIZATION within the retrieve_tools surface. Serialization-only: it\nnever affects the query, ranking, or result set. Hot-reloadable.","type":"string"},"tool_response_session_risk_warning":{"description":"ToolResponseSessionRiskWarning controls whether the prose ` + "`" + `warning` + "`" + ` field\nis included in the ` + "`" + `session_risk` + "`" + ` object returned by ` + "`" + `retrieve_tools` + "`" + `.\nThe structured fields (level, lethal_trifecta, has_open_world_tools, etc.)\nare always included. Default: false (quiet for LLM clients) — see issue #406.\nMost tools lack annotations, so the MCP-spec defaults treat them as fully\npermissive across all three risk axes, which makes the prose warning fire\non almost every call and wastes tokens.","type":"boolean"},"tools_limit":{"type":"integer"},"toon_min_savings_pct":{"description":"ToonMinSavingsPct is the minimum byte-savings percentage (validated\n1-90; 0/unset → 15) the complete TOON emission (marker + hint + body)\nmust achieve over the exact passthrough emission for adaptive mode to\nencode a block. Byte savings approximate token savings for the tabular\npayload class; the spec-083 profiler reports true token deltas.\nGlobal-only (no per-server override, FR-001).","type":"integer"},"toon_output":{"description":"ToonOutput selects the TOON encoding mode for call_tool_* result text\nblocks (spec 084): \"off\" (default — responses byte-identical to\npre-feature behavior), \"adaptive\" (encode only tabular-uniform payloads\nthat beat compact JSON by ToonMinSavingsPct), or \"always\"\n(benchmark/debug only — encodes every JSON-parseable block and can\nINCREASE token cost). Per-server override: ServerConfig.ToonOutput.\nResolved by ResolveToonOutput; hot-reloadable.","type":"string"},"top_k":{"description":"Deprecated: TopK is superseded by ToolsLimit and has no runtime effect. Kept for backward compatibility.","type":"integer"},"tray_endpoint":{"description":"Tray endpoint override (unix:// or npipe://)","type":"string"},"trusted_hosts":{"description":"TrustedHosts lists non-loopback Host header values accepted on loopback\nlisteners (GH #898). DNS-rebinding protection rejects requests whose Host\nheader is not a loopback address when mcpproxy listens on loopback; a\nreverse proxy (nginx → 127.0.0.1) forwarding the public domain in Host\ntrips it. Entries are hostnames, case-insensitive; an entry without a\nport matches any port, with a port it must match exactly; a leading dot\n(\".example.com\") is a subdomain wildcard. The single entry \"*\" disables\nHost and Origin validation entirely. The same list also validates the\nOrigin header when present (MCP spec DNS-rebinding defense). Empty\n(default) keeps full protection. Env override: MCPPROXY_TRUSTED_HOSTS\n(comma-separated).","items":{"type":"string"},"type":"array","uniqueItems":false},"update_check":{"$ref":"#/components/schemas/config.UpdateCheckConfig"}},"type":"object"},"config.CustomPattern":{"properties":{"category":{"description":"Category (defaults to \"custom\")","type":"string"},"keywords":{"description":"Keywords to match (mutually exclusive with Regex)","items":{"type":"string"},"type":"array","uniqueItems":false},"name":{"description":"Unique identifier for this pattern","type":"string"},"regex":{"description":"Regex pattern (mutually exclusive with Keywords)","type":"string"},"severity":{"description":"Risk level: critical, high, medium, low","type":"string"}},"type":"object"},"config.DeepScanConfig":{"description":"DeepScan is the opt-in \"deep scan\" layer (Spec 077 US3). It subsumes the\ndeprecated top-level scanner_fetch_package_source / scanner_disable_no_new_privileges\nkeys (migrated on load) and gates the heavy Docker-based scanners + source\nextraction. Disabled by default (FR-006): only the deterministic in-process\nbaseline scanner runs. A deep-scan failure NEVER changes the baseline verdict\n(FR-007/FR-008).","properties":{"disable_no_new_privileges":{"description":"DisableNoNewPrivileges, when true, omits the ` + "`" + `--security-opt\nno-new-privileges` + "`" + ` flag from scanner container runs (snap-docker/AppArmor\nescape hatch). Absorbs the deprecated top-level\nscanner_disable_no_new_privileges. Default false.","type":"boolean"},"enabled":{"description":"Enabled is the master opt-in for the heavy layer (FR-006). Default false.","type":"boolean"},"fetch_package_source":{"description":"FetchPackageSource controls whether the scanner fetches the PUBLISHED\nsource of package-runner servers (npx/uvx) — without executing it — when\nno local source is available. Absorbs the deprecated top-level\nscanner_fetch_package_source. Default (nil) is ENABLED within deep scan.","type":"boolean"},"scanners":{"description":"Scanners optionally restricts which deep scanners may run under the\numbrella (by scanner id). Empty ⇒ all enabled deep scanners are eligible.","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.DockerIsolationConfig":{"description":"Docker isolation settings","properties":{"cpu_limit":{"description":"CPU limit for containers","type":"string"},"default_images":{"additionalProperties":{"type":"string"},"description":"Map of runtime type to Docker image","type":"object"},"enable_cache_volume":{"description":"Mount shared cache volumes for faster restarts (default: true)","type":"boolean"},"enabled":{"description":"Global enable/disable for Docker isolation (legacy; superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments","items":{"type":"string"},"type":"array","uniqueItems":false},"log_driver":{"description":"Docker log driver (default: json-file)","type":"string"},"log_max_files":{"description":"Maximum number of log files (default: 3)","type":"string"},"log_max_size":{"description":"Maximum size of log files (default: 100m)","type":"string"},"memory_limit":{"description":"Memory limit for containers","type":"string"},"mode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"network_mode":{"description":"Docker network mode (default: bridge)","type":"string"},"registry":{"description":"Custom registry (defaults to docker.io)","type":"string"},"timeout":{"description":"Container startup timeout","type":"string"}},"type":"object"},"config.DockerRecoveryConfig":{"description":"Docker recovery settings","properties":{"enabled":{"description":"Enable Docker recovery monitoring (default: true)","type":"boolean"},"max_retries":{"description":"Maximum retry attempts (0 = unlimited)","type":"integer"},"notify_on_failure":{"description":"Show notification on recovery failure (default: true)","type":"boolean"},"notify_on_retry":{"description":"Show notification on each retry (default: false)","type":"boolean"},"notify_on_start":{"description":"Show notification when recovery starts (default: true)","type":"boolean"},"notify_on_success":{"description":"Show notification on successful recovery (default: true)","type":"boolean"},"persistent_state":{"description":"Save recovery state across restarts (default: true)","type":"boolean"}},"type":"object"},"config.FeatureFlags":{"description":"Deprecated: Features flags are unused and have no runtime effect. Kept for backward compatibility.","properties":{"enable_async_storage":{"type":"boolean"},"enable_caching":{"type":"boolean"},"enable_contract_tests":{"type":"boolean"},"enable_debug_logging":{"description":"Development features","type":"boolean"},"enable_docker_isolation":{"type":"boolean"},"enable_event_bus":{"type":"boolean"},"enable_health_checks":{"type":"boolean"},"enable_metrics":{"type":"boolean"},"enable_oauth":{"description":"Security features","type":"boolean"},"enable_observability":{"description":"Observability features","type":"boolean"},"enable_quarantine":{"type":"boolean"},"enable_runtime":{"description":"Runtime features","type":"boolean"},"enable_search":{"description":"Storage features","type":"boolean"},"enable_sse":{"type":"boolean"},"enable_tracing":{"type":"boolean"},"enable_tray":{"type":"boolean"},"enable_web_ui":{"description":"UI features","type":"boolean"}},"type":"object"},"config.IntentDeclarationConfig":{"description":"Intent declaration settings (Spec 018)","properties":{"strict_server_validation":{"description":"StrictServerValidation controls whether server annotation mismatches\ncause rejection (true) or just warnings (false).\nDefault: true (reject mismatches)","type":"boolean"}},"type":"object"},"config.IsolationConfig":{"description":"Per-server isolation settings","properties":{"enabled":{"description":"Enable Docker isolation for this server (nil = inherit global; legacy, superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments for this server","items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"description":"Custom Docker image (overrides default)","type":"string"},"log_driver":{"description":"Docker log driver override for this server","type":"string"},"log_max_files":{"description":"Maximum number of log files override","type":"string"},"log_max_size":{"description":"Maximum size of log files override","type":"string"},"mode":{"$ref":"#/components/schemas/config.IsolationMode"},"network_mode":{"description":"Custom network mode for this server","type":"string"},"working_dir":{"description":"Custom working directory in container","type":"string"}},"type":"object"},"config.IsolationMode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"config.LogConfig":{"description":"Logging configuration","properties":{"compress":{"type":"boolean"},"enable_console":{"type":"boolean"},"enable_file":{"type":"boolean"},"filename":{"type":"string"},"json_format":{"type":"boolean"},"level":{"type":"string"},"log_dir":{"description":"Custom log directory","type":"string"},"max_age":{"description":"days","type":"integer"},"max_backups":{"description":"number of backup files","type":"integer"},"max_size":{"description":"MB","type":"integer"}},"type":"object"},"config.MetricsExporterConfig":{"description":"Metrics gates the Prometheus /metrics scrape endpoint (MCP-32). Disabled\nby default — operators opt in for k8s/enterprise deployments.","properties":{"enabled":{"description":"Enabled exposes /metrics on the existing HTTP listener when true.","type":"boolean"}},"type":"object"},"config.OAuthConfig":{"description":"OAuth configuration (keep even when empty to signal OAuth requirement)","properties":{"client_id":{"type":"string"},"client_secret":{"type":"string"},"extra_params":{"additionalProperties":{"type":"string"},"description":"Additional OAuth parameters (e.g., RFC 8707 resource)","type":"object"},"pkce_enabled":{"type":"boolean"},"redirect_uri":{"type":"string"},"scopes":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ObservabilityConfig":{"description":"Observability settings (Spec 069): usage aggregate cache/persistence cadence.","properties":{"metrics":{"$ref":"#/components/schemas/config.MetricsExporterConfig"},"tracing":{"$ref":"#/components/schemas/config.TracingExporterConfig"},"usage_cache_ttl":{"description":"UsageCacheTTL bounds the freshness of the usage endpoint's read cache for\nwide windows (FR-005). Default 5s.","type":"string"},"usage_persist_interval":{"description":"UsagePersistInterval is how often the actor-owned usage aggregate snapshot\nis flushed to storage. Default 30s.","type":"string"}},"type":"object"},"config.OutputSanitisationConfig":{"description":"Output sanitisation settings (Spec 054 Track B)","properties":{"max_redactions":{"description":"cap on redactions per response; default 100","type":"integer"},"response_action":{"description":"\"spotlight\" | \"redact\" | \"block\"; default \"spotlight\"","type":"string"},"spotlight_untrusted":{"description":"wrap untrusted output in spotlight markers; default true","type":"boolean"},"strip_classes":{"description":"classes to strip: ansi/c0c1/bidi/zero_width","items":{"type":"string"},"type":"array","uniqueItems":false},"strip_control_chars":{"description":"strip control-character classes; default false","type":"boolean"}},"type":"object"},"config.OutputValidationConfig":{"description":"Output-schema validation settings (Spec 056)","properties":{"max_bytes":{"description":"structured payload byte cap; default 5\u003c\u003c20","type":"integer"},"max_depth":{"description":"nesting depth cap; default 64","type":"integer"},"missing_structured_content":{"description":"\"allow\" | \"block\"; default \"allow\"","type":"string"},"mode":{"description":"\"off\" | \"warn\" | \"strict\"; default \"warn\"","type":"string"}},"type":"object"},"config.ProfileConfig":{"properties":{"name":{"description":"URL slug, validated","type":"string"},"servers":{"description":"references to mcpServers[].name","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.RegistryEntry":{"properties":{"count":{"description":"number or string","type":"string"},"description":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"},"protocol":{"type":"string"},"provenance":{"description":"Provenance is the trust tag for this registry (MCP-866):\nRegistryProvenanceOfficial for built-in defaults, RegistryProvenanceCustom\nfor user-added registries. It is authoritatively (re)computed by the\nregistries merge from whether the ID is a shipped default — a user cannot\nclaim \"official\" by writing it into their config.","type":"string"},"requires_key":{"description":"RequiresKey marks a registry that needs an API key to be queried. When\ntrue and no key is configured, the registry is skipped/marked unavailable\nrather than failing the whole search (FR-008).","type":"boolean"},"servers_url":{"type":"string"},"tags":{"items":{"type":"string"},"type":"array","uniqueItems":false},"url":{"type":"string"}},"type":"object"},"config.SecurityConfig":{"description":"Security scanner settings (Spec 039)","properties":{"auto_baseline_scan":{"description":"AutoBaselineScan is the kill-switch for the AUTOMATIC, informational\nPass-1 baseline scan: the free in-process TPA scan mcpproxy runs for every\nnewly admitted server (any trust mode) and, once per installation, over\npre-existing servers that have never been scanned.\n\nInformational ONLY: the resulting verdict populates the security badge and\nthe scan summary, and NEVER gates quarantine or approval. The\ntrust_mode:\"scan\" admission gate is a separate path and is unaffected by\nthis flag.\n\nDefault (nil) is ENABLED. Set to false to suppress every automatic scan\n(manual scans keep working). Env override: MCPPROXY_AUTO_BASELINE_SCAN,\nwhich wins over this field on every path.","type":"boolean"},"deep_scan":{"$ref":"#/components/schemas/config.DeepScanConfig"},"integrity_check_interval":{"type":"string"},"integrity_check_on_restart":{"type":"boolean"},"runtime_read_only":{"type":"boolean"},"runtime_tmpfs_size":{"type":"string"},"scan_timeout_default":{"type":"string"},"scanner_disable_no_new_privileges":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.DisableNoNewPrivileges\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.IsDisableNoNewPrivileges. Cleared after migration.\n\nScannerDisableNoNewPrivileges, when true, omits the\n` + "`" + `--security-opt no-new-privileges` + "`" + ` flag from scanner container runs.\n\nBackground: snap-installed Docker on Ubuntu confines dockerd under the\n` + "`" + `snap.docker.dockerd` + "`" + ` AppArmor profile. When runc tries to transition\nthe container into the inner ` + "`" + `docker-default` + "`" + ` profile to exec the\nentrypoint, AppArmor refuses the transition because NO_NEW_PRIVS\nforbids privilege/profile changes on exec — the result is EPERM\n(\"operation not permitted\") and every scanner fails immediately.\n\nSet this to true ONLY on hosts hitting that incompatibility. Scanner\ncontainers still run with read-only rootfs, tmpfs /tmp, no-network by\ndefault, and read-only source mounts, so the marginal isolation loss\nis small. The preferred fix remains replacing snap docker with a\ndistro-packaged docker.","type":"boolean"},"scanner_fetch_package_source":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.FetchPackageSource\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.EffectiveFetchPackageSource. Cleared after migration.\n\nScannerFetchPackageSource controls whether the scanner fetches the\nPUBLISHED source of package-runner servers (npx/uvx) — without executing\nit — when no local source is available (no Docker container, no local\npackage cache, no working_dir). This is the primary quarantine/scan\ntarget: a quarantined-on-add server is never run locally, so without this\nthe scan degrades to tool-definitions-only (no real source-level\nanalysis). See MCP-2206.\n\nFetching uses ` + "`" + `npm pack --ignore-scripts` + "`" + ` (npm) and ` + "`" + `uv pip download` + "`" + ` /\n` + "`" + `pip download` + "`" + ` with ` + "`" + `--only-binary=:all:` + "`" + ` (Python), which only download +\nunpack archives and NEVER run install, build, or setup.py — a scanner must\nnot execute the untrusted code it is scanning. The Python\n` + "`" + `--only-binary=:all:` + "`" + ` flag is required because downloading an sdist would\ninvoke its build backend (setup.py); packages with no wheel fall back to\ntool-definitions-only instead. Extraction is hardened against path\ntraversal and decompression bombs.\n\nDefault (nil) is ENABLED. Set to false on air-gapped deployments to\nforbid the scanner's network egress; such servers then fall back to the\ntool-definitions-only scan with no regression.","type":"boolean"},"scanner_registry_url":{"type":"string"},"tpa_bundle_path":{"description":"TPABundlePath is the filesystem path to the tpa-db scanner-bundle.json\nthe offline TPA scanner runs (spec 086 FR-019: the signature-DB location\nMUST be configuration-driven, not hardcoded). Empty (the default) runs the\ncorpus embedded in this build.\n\nEnv override: MCPPROXY_TPA_BUNDLE_PATH. Hot-reloadable — the path is\nre-read on every config.reloaded event via\nscanner.Service.ApplySecurityConfig, so a corpus refresh needs no restart.\nA configured bundle that fails to read/parse/version-check/compile is\nREFUSED and the previously active corpus stays live (fail-closed, never\nfail-empty); the reason is logged and surfaced in the security overview's\nsignature_bundle.load_error.","type":"string"}},"type":"object"},"config.SensitiveDataDetectionConfig":{"description":"Sensitive data detection settings (Spec 026)","properties":{"categories":{"additionalProperties":{"type":"boolean"},"description":"Enable/disable specific detection categories","type":"object"},"custom_patterns":{"description":"User-defined detection patterns","items":{"$ref":"#/components/schemas/config.CustomPattern"},"type":"array","uniqueItems":false},"enabled":{"description":"Enable sensitive data detection (default: true)","type":"boolean"},"entropy_threshold":{"description":"Shannon entropy threshold for high-entropy detection (default: 4.5)","type":"number"},"max_payload_size_kb":{"description":"Max size to scan before truncating (default: 1024)","type":"integer"},"scan_requests":{"description":"Scan tool call arguments (default: true)","type":"boolean"},"scan_responses":{"description":"Scan tool responses (default: true)","type":"boolean"},"sensitive_keywords":{"description":"Keywords to flag","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ServerConfig":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve tool\nchanges/additions (disabling per-server rug-pull protection). Supersedes\nskip_quarantine. MCP-2930 only ACCEPTS, persists, and migrates this flag — it\nis NOT yet consulted at runtime; auto-approval is still governed by\nSkipQuarantine until the trust-baseline behavior change (MCP-2931) migrates the\nruntime consumers onto it.\nTri-state pointer (mirrors QuarantineEnabled): nil = unset (inherit/migrate\nfrom legacy skip_quarantine), explicit true/false = honored as-is so an\nexplicit auto_approve_tool_changes:false overrides a legacy skip_quarantine:true.\nRead via IsAutoApproveToolChanges().","type":"boolean"},"command":{"type":"string"},"created":{"type":"string"},"disabled_tools":{"description":"Denylist: these tools are hidden; mutually exclusive with enabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"enabled":{"type":"boolean"},"enabled_tools":{"description":"Allowlist: only these tools are exposed; mutually exclusive with disabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts overrides whether this server's advertised MCP prompts are\naggregated into mcpproxy's prompts/list. nil (default) inherits the\ndefault-aggregate behavior (included if the server advertises\nCapabilities.Prompts); false excludes it regardless of capability.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"description":"For HTTP servers","type":"object"},"health_check_interval":{"description":"Per-server discovery \u0026 health-check overrides (spec 074). Same *Duration\ntri-state as the global keys: nil = inherit the global value (or default),\npointer to 0s = disabled for this server, positive = that interval.\nHealthCheckInterval is fully wired into the per-server health loop;\nToolDiscoveryInterval is accepted/validated and round-trips for\nforward-compat, but the periodic index sweep is governed by the global\ncadence in this iteration (see spec 074 plan §C).","type":"string"},"init_timeout":{"description":"InitTimeout overrides the global init_timeout for this server's MCP\n` + "`" + `initialize` + "`" + ` handshake deadline (MCP-3322 / GH #760). *Duration tri-state:\nnil = inherit the global value (or 30s default), positive = that deadline.\nResolved by Config.ResolveInitTimeout; validated to {0} ∪ [1s, 30m]. Raise\nthis for upstreams that do legitimate first-run warmup (e.g. caching many\nchannels/users) before responding to ` + "`" + `initialize` + "`" + `.","type":"string"},"isolation":{"$ref":"#/components/schemas/config.IsolationConfig"},"launcher_wait_timeout":{"description":"LauncherWaitTimeout caps how long mcpproxy will wait for a locally-launched\nHTTP/SSE upstream's URL to become reachable after Spawn(). Only consulted\nwhen the server is configured with both Command and an HTTP/SSE URL — i.e.,\nmcpproxy starts the process AND connects via network. Stdio servers ignore\nthis field. Zero or unset → 30s default.","type":"string"},"max_concurrent_requests":{"description":"Per-server concurrency overrides — scope (c) of FR-020 (spec 093, #955).\nTri-state per setting, exactly like HealthCheckInterval: absent = inherit\nthe per-server default set (server_concurrency_defaults), explicit 0 =\ndisable that setting for this server (0 max = no per-server limiter at\nall; 0 queue_size = no pending capacity, shed immediately at the cap),\npositive = override. The global aggregate limiter is never inherited from\nhere — it applies on top, so effective concurrency is min(per-server,\nglobal). Resolved by Config.ResolveServerConcurrency.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/config.OAuthConfig"},"protocol":{"description":"stdio, http, sse, streamable-http, auto","type":"string"},"quarantined":{"description":"Security quarantine status","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets a disconnected server","type":"boolean"},"shared":{"description":"Server edition: shared with all users","type":"boolean"},"skip_quarantine":{"description":"SkipQuarantine is DEPRECATED (MCP-2930): use AutoApproveToolChanges instead.\nKept for back-compat parsing; on config load a legacy skip_quarantine:true is\nmigrated to auto_approve_tool_changes:true only when the new field is unset\n(see normalizeServerQuarantineFlags).","type":"boolean"},"source_registry_id":{"description":"SourceRegistryID records which registry this server was added from (empty\nfor manually-configured servers). MCP-866: surfaced in the approval /\nquarantine view so a reviewer can see a server's origin.","type":"string"},"source_registry_provenance":{"description":"SourceRegistryProvenance records the source registry's provenance at add\ntime (RegistryProvenanceOfficial / RegistryProvenanceCustom). It is purely\ninformational (MCP-1072) — surfaced so a reviewer can see a server's origin\n— and no longer gates quarantine or skip_quarantine.","type":"string"},"tool_discovery_interval":{"type":"string"},"toon_output":{"description":"ToonOutput overrides the global toon_output mode for this server's\ntools (spec 084, FR-001). Plain string, not a pointer: \"\"/absent =\ninherit the global value; \"off\"|\"adaptive\"|\"always\" = override (\"off\"\nis the explicit force-off). Resolved by Config.ResolveToonOutput.","type":"string"},"trust_mode":{"description":"TrustMode is the per-server trust tier: auto|scan|manual. Supersedes\nauto_approve_tool_changes (spec 086). An empty value is derived from the\nlegacy fields at load via normalizeServerQuarantineFlags; the single\nresolution point is EffectiveTrustMode(), which treats an empty or\nunrecognized value as manual (secure by default). Read via\nEffectiveTrustMode(), never the raw string.","type":"string"},"updated":{"type":"string"},"url":{"type":"string"},"working_dir":{"description":"Working directory for stdio servers","type":"string"}},"type":"object"},"config.TLSConfig":{"description":"TLS configuration","properties":{"certs_dir":{"description":"Directory for certificates","type":"string"},"enabled":{"description":"Enable HTTPS","type":"boolean"},"hsts":{"description":"Enable HTTP Strict Transport Security","type":"boolean"},"require_client_cert":{"description":"Enable mTLS","type":"boolean"}},"type":"object"},"config.TelemetryConfig":{"description":"Telemetry settings (Spec 036)","properties":{"anonymous_id":{"description":"Auto-generated UUIDv4","type":"string"},"anonymous_id_created_at":{"description":"Spec 042 (Tier 2) additions — all default-zero, all backwards-compatible.","type":"string"},"enabled":{"description":"Default: true (opt-out)","type":"boolean"},"endpoint":{"description":"Override for testing","type":"string"},"last_reported_version":{"description":"Upgrade funnel","type":"string"},"last_startup_outcome":{"description":"success|port_conflict|db_locked|...","type":"string"},"notice_shown":{"description":"First-run notice flag","type":"boolean"}},"type":"object"},"config.TokenizerConfig":{"description":"Tokenizer configuration for token counting","properties":{"default_model":{"description":"Default model for tokenization (e.g., \"gpt-4\")","type":"string"},"enabled":{"description":"Enable token counting","type":"boolean"},"encoding":{"description":"Default encoding (e.g., \"cl100k_base\")","type":"string"}},"type":"object"},"config.TracingExporterConfig":{"description":"Tracing gates the OpenTelemetry OTLP trace exporter (MCP-32). Disabled by\ndefault.","properties":{"enabled":{"description":"Enabled turns on OTLP trace export for tool calls and upstream hops.","type":"boolean"},"endpoint":{"description":"Endpoint is the collector address as host:port (no scheme), e.g.\n\"localhost:4318\" for http or \"localhost:4317\" for grpc.","type":"string"},"protocol":{"description":"Protocol selects the OTLP transport: \"http\" or \"grpc\".","type":"string"},"sample_rate":{"description":"SampleRate is the head-based trace sampling ratio in [0,1]. Default 0.1.\nOmit the key for the 0.1 default; set it to 0 to sample nothing.","type":"number"}},"type":"object"},"config.UpdateCheckConfig":{"description":"Update-check settings (Spec 079 FR-012): config-file control of the\nbackground upgrade-awareness checker (internal/updatecheck). nil =\nenabled on the stable channel (existing default behavior). 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A malformed id is answered with a\nper-ID not_found carrying a format hint, never a request-level error.","type":"string"},"pin_hash":{"description":"PinHash is \"sha256/v{N}:{hex}\" — the schema version is embedded so a\nproxy-side hash-algorithm bump is distinguishable from upstream drift.","type":"string"}},"type":"object"},"contracts.PreflightToolResult":{"properties":{"action":{"type":"string"},"detail":{"type":"string"},"did_you_mean":{"description":"DidYouMean carries up to 3 nearest caller-visible ids on not_found. It\nnever crosses a scope boundary and never names a quarantined server's\ntools.","items":{"type":"string"},"type":"array","uniqueItems":false},"hash":{"description":"Hash is the tool's current pin (\"sha256/v{N}:{hex}\") — operator tier,\nready results only. Never disclosed to an agent token.","type":"string"},"id":{"type":"string"},"reason":{"$ref":"#/components/schemas/contracts.PreflightReason"},"remediation":{"type":"string"},"retryable":{"type":"boolean"},"status":{"$ref":"#/components/schemas/contracts.PreflightStatus"}},"type":"object"},"contracts.PreflightVerdict":{"type":"string","x-enum-varnames":["PreflightVerdictReady","PreflightVerdictDegradedRetryable","PreflightVerdictBlocked","PreflightVerdictUnknownIDs"]},"contracts.QuarantineStats":{"description":"Tool quarantine metrics for this server","properties":{"blocked_count":{"description":"Number of disabled (blocked) tools","type":"integer"},"changed_count":{"description":"Number of tools whose description/schema changed since approval","type":"integer"},"pending_count":{"description":"Number of newly discovered tools awaiting approval","type":"integer"}},"type":"object"},"contracts.RefreshRegistryResponse":{"properties":{"cleared":{"description":"number of cached entries dropped","type":"integer"},"registry_id":{"type":"string"}},"type":"object"},"contracts.Registry":{"properties":{"count":{"description":"number or string","type":"string"},"description":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"},"protocol":{"type":"string"},"provenance":{"description":"Provenance is the trust tag (MCP-866): \"official/trusted\" for built-in\ndefaults, \"custom/unverified\" for user-added registries.","type":"string"},"servers_url":{"type":"string"},"tags":{"items":{"type":"string"},"type":"array","uniqueItems":false},"trusted":{"description":"Trusted indicates whether this is an official, shipped-by-default\nregistry. Trust is derived from membership in the default set, never\nfrom self-assertion in config.","type":"boolean"},"url":{"type":"string"}},"type":"object"},"contracts.RegistryCacheInfo":{"properties":{"age_seconds":{"type":"number"},"stale":{"type":"boolean"}},"type":"object"},"contracts.RegistryUnavailable":{"properties":{"reason":{"type":"string"}},"type":"object"},"contracts.ReplayToolCallRequest":{"properties":{"arguments":{"description":"Modified arguments for replay","type":"object"}},"type":"object"},"contracts.ReplayToolCallResponse":{"properties":{"error":{"description":"Error if replay failed","type":"string"},"new_call_id":{"description":"ID of the newly created call","type":"string"},"new_tool_call":{"$ref":"#/components/schemas/contracts.ToolCallRecord"},"replayed_from":{"description":"Original call ID","type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.RepositoryInfo":{"description":"Detected package info","properties":{"npm":{"$ref":"#/components/schemas/contracts.NPMPackageInfo"}},"type":"object"},"contracts.RepositoryServer":{"properties":{"connect_url":{"description":"Alternative connection URL","type":"string"},"created_at":{"type":"string"},"description":{"type":"string"},"id":{"type":"string"},"install_cmd":{"description":"Installation command","type":"string"},"name":{"type":"string"},"registry":{"description":"Which registry this came from","type":"string"},"repository_info":{"$ref":"#/components/schemas/contracts.RepositoryInfo"},"source_code_url":{"description":"Source repository URL","type":"string"},"updated_at":{"type":"string"},"url":{"description":"MCP endpoint for remote servers only","type":"string"}},"type":"object"},"contracts.SearchRegistryServersResponse":{"properties":{"cache":{"$ref":"#/components/schemas/contracts.RegistryCacheInfo"},"query":{"type":"string"},"registry_id":{"type":"string"},"servers":{"items":{"$ref":"#/components/schemas/contracts.RepositoryServer"},"type":"array","uniqueItems":false},"tag":{"type":"string"},"total":{"type":"integer"},"unavailable":{"$ref":"#/components/schemas/contracts.RegistryUnavailable"}},"type":"object"},"contracts.SearchResult":{"properties":{"matches":{"type":"integer"},"score":{"type":"number"},"snippet":{"type":"string"},"tool":{"$ref":"#/components/schemas/contracts.Tool"}},"type":"object"},"contracts.SearchToolsResponse":{"properties":{"query":{"type":"string"},"results":{"items":{"$ref":"#/components/schemas/contracts.SearchResult"},"type":"array","uniqueItems":false},"took":{"type":"string"},"total":{"type":"integer"}},"type":"object"},"contracts.SecurityScanSummary":{"description":"Latest security scan results summary","properties":{"deep_scan":{"$ref":"#/components/schemas/contracts.DeepScanDescriptor"},"finding_counts":{"$ref":"#/components/schemas/contracts.FindingCounts"},"last_scan_at":{"type":"string"},"risk_score":{"description":"0-100","type":"integer"},"scanners_failed":{"type":"integer"},"scanners_run":{"description":"Scanner coverage for the primary (baseline) scan pass — informational only.\nSpec 077 US3 (FR-008/FR-014): Status is derived SOLELY from the\ndeterministic baseline findings; a failed Docker deep scanner no longer\ndowngrades a clean verdict. That failure is surfaced via DeepScan instead.","type":"integer"},"scanners_total":{"type":"integer"},"status":{"description":"\"clean\", \"warnings\", \"dangerous\", \"failed\", \"not_scanned\", \"scanning\"","type":"string"}},"type":"object"},"contracts.Server":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"authenticated":{"description":"OAuth authentication status","type":"boolean"},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges mirrors config.ServerConfig.AutoApproveToolChanges\n(MCP-2930): the per-server intent to auto-approve new/changed tools past\nthe trust baseline. Tri-state *bool — nil means \"never set\" (omitted from\nthe payload), so the Web UI toggle (MCP-2932) can distinguish unset from\nan explicit false. 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Surfaced on the GET path so clients can read back a configured\noverride; PATCH/POST accept it via AddServerRequest.","type":"string"},"isolation":{"$ref":"#/components/schemas/contracts.IsolationConfig"},"isolation_defaults":{"$ref":"#/components/schemas/contracts.IsolationDefaults"},"isolation_effective":{"$ref":"#/components/schemas/contracts.IsolationEffective"},"last_error":{"type":"string"},"last_reconnect_at":{"type":"string"},"last_retry_time":{"type":"string"},"max_concurrent_requests":{"description":"Spec 093 (GH #955) — per-server concurrency overrides, scope (c) of\nFR-020. Each setting is tri-state: nil (omitted) means \"inherit\nserver_concurrency_defaults\", 0 disables that setting for this server,\npositive overrides it. Surfaced on the GET path so a caller can read back\nwhat it set; PATCH/POST accept them via AddServerRequest. The effective\nconcurrency for a server is additionally bounded by the global aggregate\nlimiter, which is NOT an inheritance source for these fields.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/contracts.OAuthConfig"},"oauth_status":{"description":"OAuth status: \"authenticated\", \"expired\", \"error\", \"none\"","type":"string"},"protocol":{"type":"string"},"quarantine":{"$ref":"#/components/schemas/contracts.QuarantineStats"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_count":{"type":"integer"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets this disconnected server","type":"boolean"},"retry_count":{"type":"integer"},"retry_stopped":{"description":"RetryStopped reports that automatic reconnection has been given up for\ngood because the failure is deterministic and unrecoverable — a missing\nbinary, an image without the interpreter, an unparseable config (GH\n#1145). 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Both\nare projected from config.ServerConfig so the approval/quarantine view\ncan render an \"added from \u003cregistry\u003e · unverified\" origin badge. Optional\nand omitted when empty — clients that pre-date this treat them as absent.","type":"string"},"source_registry_provenance":{"type":"string"},"status":{"type":"string"},"token_expires_at":{"description":"When the OAuth token expires (ISO 8601)","type":"string"},"tool_count":{"type":"integer"},"tool_list_token_size":{"description":"Token size for this server's tools","type":"integer"},"trust_mode":{"description":"TrustMode mirrors config.ServerConfig.TrustMode (spec 086): the per-server\ntrust tier (\"auto\"/\"scan\"/\"manual\"). 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The user cannot override this toggle.","type":"boolean"},"description":{"type":"string"},"disabled":{"description":"Disabled mirrors ToolApprovalRecord.Disabled so per-tool enable state is\navailable without a second round-trip to the approvals endpoint. Absent\nin the JSON when false (default) to keep responses compact.","type":"boolean"},"hash":{"description":"Hash is the tool's current stored hash rendered in the preflight pin\nformat \"sha256/v{N}:{hex}\" (Spec 098 FR-011), where N is the approval\nrecord's HashSchemaVersion. It is the authoring surface for\n` + "`" + `POST /api/v1/preflight` + "`" + ` pins and ` + "`" + `mcpproxy tools preflight --pin` + "`" + `:\ncopy the value straight into a pin.\n\nDisclosure is OPERATOR TIER ONLY — same rule as the preflight per-tool\nresult. The field is omitted for agent-token callers and for tools with\nno stored hash (no approval record yet, or a record written before\nhashes existed).","type":"string"},"held_reason":{"description":"HeldReason, HeldVerdict and HeldSignals mirror the same-named fields on\nstorage.ToolApprovalRecord: the offline-scan evidence that made\ntrust_mode: scan hold this tool for review (spec 086 FR-018). HeldSignals\nnames the matched deterministic check ids, e.g.\n\"tpa.TPA-2026-0001.hidden_instruction\", so a reviewer can see WHY the tool\nis held. 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Always present: the ` + "`" + `update` + "`" + ` object above is omitted both when\nupdate checking is disabled AND when no check has produced a result\nyet, so its absence cannot tell a client whether it is allowed to run\nits own (e.g. Sparkle feed) check. This field states the answer.","properties":{"channel":{"description":"Channel is the tracked release channel: \"stable\" or \"rc\".","type":"string"},"enabled":{"description":"Enabled is the effective automatic-check kill switch: update_check.enabled\nwith MCPPROXY_DISABLE_AUTO_UPDATE=true winning over it. 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P50Exceeds /\nP95Exceeds flip that reading for the unbounded overflow bucket, where the\nvalue is the last bound and the truth is above it (\"\u003e 10 s\").","type":"integer"},"p95_exceeds":{"type":"boolean"},"p95_ms":{"type":"integer"},"rejected":{"description":"spec 093: shed by a concurrency limit; never executed, so excluded from calls/latency","type":"integer"},"server":{"type":"string"},"sized_calls":{"description":"calls with known response size (basis for avg_resp_bytes)","type":"integer"},"tool":{"type":"string"},"total_req_bytes":{"type":"integer"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.ValidateConfigResponse":{"properties":{"errors":{"items":{"$ref":"#/components/schemas/contracts.ValidationError"},"type":"array","uniqueItems":false},"valid":{"type":"boolean"}},"type":"object"},"contracts.ValidationError":{"properties":{"field":{"type":"string"},"message":{"type":"string"}},"type":"object"},"data":{"properties":{"data":{"$ref":"#/components/schemas/contracts.InfoResponse"}},"type":"object"},"httpapi.AddServerRequest":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve\nnew/changed tools past the trust baseline (MCP-2930). Tri-state *bool:\na nil pointer means \"leave unchanged\" on PATCH; a present value\n(including false) is applied. Mirrors config.ServerConfig's *bool\nsemantics — do NOT collapse to a plain bool, or an omitted field would\nsilently reset a previously-set value.","type":"boolean"},"command":{"type":"string"},"enabled":{"type":"boolean"},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts is the per-server override for prompt aggregation (F9):\nwhether this server's advertised MCP prompts are merged into mcpproxy's\nprompts/list. Tri-state *bool mirroring config.ServerConfig.ExposePrompts —\na nil pointer means \"leave unchanged\" on PATCH (and \"inherit the default\naggregate behavior\" on create); a present value (including false) is applied.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"init_timeout":{"description":"InitTimeout is the per-server MCP ` + "`" + `initialize` + "`" + ` handshake deadline override\n(MCP-3322 / GH #760), serialized as a duration string (e.g. \"120s\"). A nil\npointer means \"leave unchanged\" on PATCH; a present value is applied.\nMirrors config.ServerConfig.InitTimeout's *Duration tri-state.","type":"string"},"isolation":{"$ref":"#/components/schemas/httpapi.IsolationRequest"},"max_concurrent_requests":{"description":"MaxConcurrentRequests / QueueSize / QueueTimeout are the per-server\nconcurrency overrides (spec 093 / GH #955, FR-020 scope (c)). Each is\ntri-state: a nil pointer means \"leave unchanged\" on PATCH and \"inherit\nserver_concurrency_defaults\" on create; an explicit 0 disables that\nsetting for this server; a positive value overrides it. Do NOT collapse\nthem to plain values — an omitted field would then silently reset a\nconfigured limit.","type":"integer"},"name":{"type":"string"},"protocol":{"type":"string"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"type":"boolean"},"trust_mode":{"description":"TrustMode is the per-server trust tier (spec 086): \"auto\", \"scan\", or\n\"manual\". Empty means \"leave unchanged\" on PATCH (and inherit the migrated\ndefault on create). A non-empty value is applied to ServerConfig.TrustMode\nand resolved by EffectiveTrustMode (an unrecognized value fails closed to\nmanual). This is the REST seam for changing the trust tier via\nPOST/PATCH /api/v1/servers.","type":"string"},"url":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.CanonicalConfigPath":{"properties":{"description":{"description":"Brief description","type":"string"},"exists":{"description":"Whether the file exists","type":"boolean"},"format":{"description":"Format identifier (e.g., \"claude_desktop\")","type":"string"},"name":{"description":"Display name (e.g., \"Claude Desktop\")","type":"string"},"os":{"description":"Operating system (darwin, windows, linux)","type":"string"},"path":{"description":"Full path to the config file","type":"string"}},"type":"object"},"httpapi.CanonicalConfigPathsResponse":{"properties":{"os":{"description":"Current operating system","type":"string"},"paths":{"description":"List of canonical config paths","items":{"$ref":"#/components/schemas/httpapi.CanonicalConfigPath"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ConnectConflictResponse":{"properties":{"action":{"description":"already_exists | precondition_failed","type":"string"},"data":{"$ref":"#/components/schemas/connect.ConnectResult"},"error":{"description":"Human-readable message","type":"string"},"success":{"description":"Always false","type":"boolean"}},"type":"object"},"httpapi.ConnectRequest":{"properties":{"force":{"description":"Overwrite existing entry","type":"boolean"},"precondition_token":{"description":"PreconditionToken is the opaque token from the preview this write was\nconfirmed against (Spec 091 FR-005). When present, the core rechecks it\nat write time and responds 409 with action \"precondition_failed\" —\nwriting nothing — if the config or the entry MCPProxy would write has\ndrifted since; the caller then re-previews instead of retrying. Absent\nmeans exactly the pre-091 behavior. A replace-classified flow sends this\nTOGETHER with force=true: the token, not the absence of force, is the\noverwrite safety.","type":"string"},"server_name":{"description":"Defaults to \"mcpproxy\"","type":"string"}},"type":"object"},"httpapi.ImportFromPathRequest":{"properties":{"format":{"description":"Optional format hint","type":"string"},"path":{"description":"File path to import from","type":"string"},"rename":{"additionalProperties":{"type":"string"},"description":"Rename maps a server name → new name. Applied after parsing so the\ncaller can disambiguate cross-source name collisions (Spec 046 v2 —\ne.g. \"mcpproxy\" → \"mcpproxy_claude_code\"). Keys are matched against\neither the raw source name (OriginalName) or the sanitized name shown\nin the preview (Server.Name); these differ for names that need\nsanitizing (e.g. \"Figma Desktop\" → \"Figma_Desktop\"). Keys not present\nin the imported set are ignored.","type":"object"},"server_names":{"description":"Optional: import only these servers","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportRequest":{"properties":{"content":{"description":"Raw JSON or TOML content","type":"string"},"format":{"description":"Optional format hint","type":"string"},"server_names":{"description":"Optional: import only these servers","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportResponse":{"properties":{"failed":{"items":{"$ref":"#/components/schemas/configimport.FailedServer"},"type":"array","uniqueItems":false},"format":{"type":"string"},"format_name":{"type":"string"},"imported":{"items":{"$ref":"#/components/schemas/httpapi.ImportedServerResponse"},"type":"array","uniqueItems":false},"skipped":{"items":{"$ref":"#/components/schemas/configimport.SkippedServer"},"type":"array","uniqueItems":false},"summary":{"$ref":"#/components/schemas/configimport.ImportSummary"},"warnings":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ImportedServerResponse":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"command":{"type":"string"},"fields_skipped":{"items":{"type":"string"},"type":"array","uniqueItems":false},"name":{"type":"string"},"original_name":{"type":"string"},"protocol":{"type":"string"},"source_format":{"type":"string"},"url":{"type":"string"},"warnings":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.IsolationRequest":{"description":"Isolation carries per-server Docker isolation overrides (enabled,\nmode_override, image, network_mode, extra_args, working_dir). A nil\npointer means \"do not touch isolation config\". A present object is\napplied field-by-field ON TOP of the persisted overrides, so omitting a\nfield leaves it alone; clear an individual override by sending it\nexplicitly (` + "`" + `\"enabled\": null` + "`" + `, ` + "`" + `\"image\": \"\"` + "`" + `).","properties":{"enabled":{"description":"Enabled exists ONLY to detect and reject an echoed-back read. It is the\neffective state on the read surface and is never writable; see validate().","type":"boolean"},"enabled_override":{"description":"EnabledOverride is the tri-state per-server override — the RAW value, the\nsame one reads return as ` + "`" + `enabled_override` + "`" + `. It has THREE meaningful wire\nstates, and collapsing them is what silently un-isolated servers\n(GH #1142):\n - absent → leave the persisted override untouched\n - null → clear the override, back to inheriting the global\n - true / false → set an explicit opt-in / opt-out","type":"boolean"},"extra_args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"type":"string"},"mode_override":{"description":"ModeOverride sets ` + "`" + `isolation.mode` + "`" + ` (\"docker\" | \"sandbox\" | \"none\").\nnil leaves the persisted value alone; an empty string clears it. An\nunrecognized value is rejected with a 400 rather than persisted.","type":"string"},"network_mode":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.OnboardingMarkRequest":{"properties":{"connect_step_status":{"description":"ConnectStepStatus is one of: \"\", \"completed\", \"skipped\". Empty\npreserves the existing value. The stored enum is wider (Spec 080\nFR-001): a \"skipped\" request for a previously untouched connect step\nis upgraded server-side to \"completed_external\" when the install\nshows positive evidence of an external connection (Spec 080 FR-002).\n\"completed_external\" is NOT accepted from clients — it must never be\npersisted without that server-verified evidence (edge case: \"never\nguess completed_external without positive evidence\").","type":"string"},"engaged":{"description":"Engaged marks the wizard as engaged (completed or explicitly skipped).\nOnce true, the wizard does not auto-show again.","type":"boolean"},"mark_shown":{"description":"MarkShown records the wizard's first display time if not already set.","type":"boolean"},"server_step_status":{"description":"ServerStepStatus is one of: \"\", \"completed\", \"skipped\". Empty\npreserves the existing value.","type":"string"}},"type":"object"},"httpapi.SetActiveProfileRequest":{"properties":{"active_profile":{"type":"string"},"profile":{"type":"string"}},"type":"object"},"httpapi.UndoConnectRequest":{"properties":{"backup_name":{"description":"BackupName is the bare filename (filepath.Base) of the backup returned as\nbackup_path by the preceding connect — a name, never a path. Undo resolves\nthe full path server-side by joining it with the client's own config\ndirectory, so a client-supplied value can never contribute a directory\ncomponent (traversal is impossible by construction). Empty means the\nconnect created the file (no prior file existed), so undo removes it.","type":"string"},"server_name":{"description":"Defaults to \"mcpproxy\"","type":"string"}},"type":"object"},"httpapi.UpdateFailureRequest":{"properties":{"stage":{"description":"Stage is the failure stage of the update session.","enum":["appcast","download","install","other"],"type":"string"}},"type":"object"},"management.BulkOperationResult":{"properties":{"errors":{"additionalProperties":{"type":"string"},"description":"Map of server name to error message","type":"object"},"failed":{"description":"Number of failed operations","type":"integer"},"successful":{"description":"Number of successful operations","type":"integer"},"total":{"description":"Total servers processed","type":"integer"}},"type":"object"},"observability.HealthResponse":{"properties":{"components":{"items":{"$ref":"#/components/schemas/observability.HealthStatus"},"type":"array","uniqueItems":false},"status":{"description":"\"healthy\" or \"unhealthy\"","type":"string"},"timestamp":{"type":"string"}},"type":"object"},"observability.HealthStatus":{"properties":{"error":{"type":"string"},"latency":{"type":"string"},"name":{"type":"string"},"status":{"description":"\"healthy\" or \"unhealthy\"","type":"string"}},"type":"object"},"observability.ReadinessResponse":{"properties":{"components":{"items":{"$ref":"#/components/schemas/observability.HealthStatus"},"type":"array","uniqueItems":false},"status":{"description":"\"ready\" or \"not_ready\"","type":"string"},"timestamp":{"type":"string"}},"type":"object"},"secureenv.EnvConfig":{"description":"Environment configuration for secure variable filtering","properties":{"allowed_system_vars":{"items":{"type":"string"},"type":"array","uniqueItems":false},"custom_vars":{"additionalProperties":{"type":"string"},"type":"object"},"enhance_path":{"description":"Enable PATH enhancement for Launchd scenarios","type":"boolean"},"forward_proxy_env":{"description":"ForwardProxyEnv opts in to forwarding the ambient HTTP(S)/ALL/NO/FTP proxy\nenvironment variables to spawned upstream servers (MCP-2769). It is OFF by\ndefault and deliberately kept out of the AllowedSystemVars default list:\nproxy URLs frequently carry credentials (http://user:pass@proxy), so\nforwarding them to every stdio upstream is a credential-leak risk. When\nenabled, values are forwarded with their userinfo (credentials) redacted.","type":"boolean"},"inherit_system_safe":{"type":"boolean"}},"type":"object"},"telemetry.FeedbackContext":{"properties":{"arch":{"type":"string"},"connected_server_count":{"type":"integer"},"edition":{"type":"string"},"os":{"type":"string"},"routing_mode":{"type":"string"},"server_count":{"type":"integer"},"version":{"type":"string"}},"type":"object"},"telemetry.FeedbackRequest":{"properties":{"category":{"description":"bug, feature, other","type":"string"},"context":{"$ref":"#/components/schemas/telemetry.FeedbackContext"},"email":{"type":"string"},"message":{"type":"string"}},"type":"object"},"telemetry.FeedbackResponse":{"properties":{"error":{"type":"string"},"issue_url":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}},"securitySchemes":{"ApiKeyAuth":{"description":"API key authentication via query parameter. Use ?apikey=your-key","in":"query","name":"apikey","type":"apiKey"}}}, + "components": {"schemas":{"config.ConcurrencyDefaults":{"description":"ServerConcurrencyDefaults is scope (b) of FR-020: the blanket per-server\ndefault set inherited by every server that does not override a setting.\nAbsent (the default) = no per-server limiting unless a server configures\nit explicitly. File/API-configured only — no env scheme (FR-022).","properties":{"max_concurrent_requests":{"type":"integer"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"}},"type":"object"},"config.Config":{"properties":{"activity_cleanup_interval_min":{"description":"Background cleanup interval in minutes (default: 60)","type":"integer"},"activity_max_records":{"description":"Max records before pruning (default: 100000)","type":"integer"},"activity_max_response_size":{"description":"Response truncation limit in bytes (default: 65536)","type":"integer"},"activity_max_size_mb":{"description":"ActivityMaxSizeMB caps the total activity-log size in MB before the\noldest records are pruned. Omit the key for the 256MB default; set it to\n0 to disable the size cap.","type":"integer"},"activity_retention_days":{"description":"Activity logging settings (RFC-003)","type":"integer"},"aggregate_upstream_prompts":{"description":"AggregateUpstreamPrompts, when true, aggregates every connected upstream\nserver's advertised MCP prompts into mcpproxy's own prompts/list\n(exposed as \"\u003cserver\u003e__\u003cprompt\u003e\"). OFF by default: users are safe by\ndefault and opt in deliberately. EnablePrompts still governs the built-in\nprompts + the prompts capability; this flag gates ONLY the upstream\naggregation performed by RefreshPrompts. Hot-reloadable.","type":"boolean"},"allow_private_registry_fetch":{"description":"AllowPrivateRegistryFetch opts out of the registry SSRF guard (MCP-1076,\nCWE-918). By default (false) registry fetches refuse any host that is — or\nresolves to — a non-routable address (loopback, RFC1918/CGNAT private,\nlink-local incl. the 169.254.169.254 cloud-metadata endpoint), so a\nmalicious or typo'd registry source cannot turn the daemon into a\nrequest-forgery vector against internal services.\n\nThis opt-out is BLANKET (all-or-nothing): setting it true disables the\nguard for EVERY non-routable range at once — loopback, RFC1918/CGNAT\nprivate, link-local AND the 169.254.169.254 cloud-metadata endpoint. There\nis no way to allow only loopback; enabling it for a localhost dev registry\nalso re-opens the cloud-metadata SSRF vector. Set true ONLY when you\nintentionally run a trusted registry mirror on an internal/private address,\nideally on a host with no cloud-metadata exposure. The change takes effect\nonly on daemon (re)start or config reload.","type":"boolean"},"allow_server_add":{"type":"boolean"},"allow_server_remove":{"type":"boolean"},"api_key":{"description":"Security settings","type":"string"},"call_tool_timeout":{"type":"string"},"check_server_repo":{"description":"Repository detection settings","type":"boolean"},"code_execution_max_parallel":{"description":"Default concurrency for call_tools() batches (1-32, default: 8)","type":"integer"},"code_execution_max_tool_calls":{"description":"Max tool calls per execution (0 = unlimited, default: 0)","type":"integer"},"code_execution_pool_size":{"description":"JavaScript runtime pool size (default: 10)","type":"integer"},"code_execution_timeout_ms":{"description":"Timeout in milliseconds (default: 120000, max: 600000)","type":"integer"},"data_dir":{"type":"string"},"debug_search":{"type":"boolean"},"direct_tool_response_mode":{"description":"DirectToolResponseMode selects the serialization of the DIRECT\nenumeration surface (Spec 102). Valid values: \"\" (= full), \"full\"\n(default: today's schema-bearing entries), \"deferred\" (description +\ncompact signature, with a minimal permissive input schema; upstream\ninputSchema and outputSchema are stripped and recovered on demand via\ndescribe_tool).\n\nDeliberately NOT an extension of tool_response_mode: reusing that axis\nwould silently change /mcp/all output for every deployment already\nrunning compact, which FR-015 forbids. Serialization-only — it never\nchanges WHICH tools are listed, only how (FR-008). Hot-reloadable.","type":"string"},"disable_management":{"type":"boolean"},"docker_isolation":{"$ref":"#/components/schemas/config.DockerIsolationConfig"},"docker_recovery":{"$ref":"#/components/schemas/config.DockerRecoveryConfig"},"enable_code_execution":{"description":"Code execution settings","type":"boolean"},"enable_prompts":{"description":"Prompts settings","type":"boolean"},"enable_socket":{"description":"Enable Unix socket/named pipe for local IPC (default: true)","type":"boolean"},"enable_tray":{"description":"Deprecated: EnableTray is unused and has no runtime effect. Kept for backward compatibility.","type":"boolean"},"environment":{"$ref":"#/components/schemas/secureenv.EnvConfig"},"features":{"$ref":"#/components/schemas/config.FeatureFlags"},"forward_proxy_env":{"description":"ForwardProxyEnv opts in to forwarding the ambient HTTP(S)/ALL/NO/FTP proxy\nenvironment variables to spawned stdio upstream servers (MCP-2769). OFF by\ndefault: proxy URLs commonly embed credentials (http://user:pass@proxy), so\nforwarding them to every upstream is a credential-leak risk. When enabled,\nvalues are forwarded with their userinfo (credentials) redacted.","type":"boolean"},"health_check_interval":{"description":"Discovery \u0026 health-check cadence (spec 074, #608). Both are *Duration\ntri-state pointers: nil = inherit the built-in default; a pointer to 0s =\nthe loop is disabled; a positive value = that interval. Defaults live only\nin the resolvers (ResolveHealthCheckInterval / ResolveToolDiscoveryInterval)\nso an unset key behaves exactly as before this feature (SC-005). Validated\nin Validate(): health-check ∈ {0} ∪ [5s,1h]; tool-discovery ∈ {0} ∪ [30s,24h].","type":"string"},"http_idle_timeout":{"description":"HTTPIdleTimeout caps how long an idle keep-alive connection is kept open.\nUnset = 180s. \"0s\" removes the dedicated idle deadline, but net/http then\nfalls back to ReadTimeout — idle is fully unbounded only when\nhttp_read_timeout is also \"0s\". Requires a restart.","type":"string"},"http_read_timeout":{"description":"HTTPReadTimeout caps how long reading a whole request (headers + body)\nmay take. Unset = 120s; \"0s\" disables it. Requires a restart.","type":"string"},"http_write_timeout":{"description":"HTTPWriteTimeout caps how long producing a whole response may take on\nnon-streaming endpoints (REST, Web UI, health). Unset = 120s; \"0s\"\ndisables it globally. MCP and SSE /events routes are exempt by design.","type":"string"},"init_timeout":{"description":"InitTimeout is the global default deadline for an upstream's MCP\n` + "`" + `initialize` + "`" + ` handshake (MCP-3322 / GH #760). *Duration tri-state: nil =\ninherit the built-in 30s default; a positive value = that deadline. A\nper-server InitTimeout overrides this. Resolved by ResolveInitTimeout;\nvalidated to {0} ∪ [1s, 30m] in Validate(). Servers doing legitimate\nfirst-run warmup (cache/index build) before answering ` + "`" + `initialize` + "`" + ` can\nraise this so they are not killed mid-startup.","type":"string"},"instructions":{"description":"Instructions text returned in the MCP initialize response to guide AI agents.\nWhen empty, a built-in default is used that explains retrieve_tools workflow.","type":"string"},"intent_declaration":{"$ref":"#/components/schemas/config.IntentDeclarationConfig"},"listen":{"type":"string"},"logging":{"$ref":"#/components/schemas/config.LogConfig"},"max_concurrent_requests":{"description":"Concurrency limits (spec 093, GH #955). Scope (a) of FR-020: the GLOBAL\nAGGREGATE limiter — one proxy-wide cap on concurrently running upstream\ntool calls, with its own bounded wait queue. Tri-state pointers: absent =\nthe limiter does not exist (default, zero behavior change); an explicit 0\nmax also disables it; positive = that cap. This scope is NEVER a\nper-server inheritance source — per-server values come from\nServerConcurrencyDefaults / the per-server overrides — but a server's\neffective concurrency is bounded by BOTH its own limiter and this one.\nResolved by ResolveGlobalConcurrency; hot-reloadable; overridable via\nMCPPROXY_MAX_CONCURRENT_REQUESTS / _QUEUE_SIZE / _QUEUE_TIMEOUT (FR-022).","type":"integer"},"max_result_size_chars":{"description":"MaxResultSizeChars is advertised on every tool as\n` + "`" + `_meta.anthropic/maxResultSizeChars` + "`" + `; it raises Claude Code's\ninline-response ceiling from 50k to up to 500k chars. Omit the key for\nthe 500000 default; set it to 0 to disable the annotation.","type":"integer"},"mcpServers":{"items":{"$ref":"#/components/schemas/config.ServerConfig"},"type":"array","uniqueItems":false},"oauth_expiry_warning_hours":{"description":"Health status settings","type":"number"},"observability":{"$ref":"#/components/schemas/config.ObservabilityConfig"},"output_sanitisation":{"$ref":"#/components/schemas/config.OutputSanitisationConfig"},"output_validation":{"$ref":"#/components/schemas/config.OutputValidationConfig"},"profiles":{"description":"Profiles are optional named, server-scoped views exposed at /mcp/p/\u003cname\u003e\n(Spec 057). Absent/empty is fully supported — /mcp is unchanged and configs\nwithout this key serialize byte-identically (SC-004).","items":{"$ref":"#/components/schemas/config.ProfileConfig"},"type":"array","uniqueItems":false},"quarantine_enabled":{"description":"QuarantineEnabled controls whether quarantine is active. It gates two\nthings together:\n 1. Server-level auto-quarantine for newly added servers (issue #370).\n When true, servers added via the upstream_servers MCP tool or the\n REST API default to quarantined=true; when false, they default to\n quarantined=false. Explicit per-request values always win.\n 2. Tool-level quarantine (Spec 032): per-tool SHA-256 approval of\n tool descriptions/schemas.\nWhen nil (default), quarantine is enabled (secure by default). Set to\nexplicit false to opt out of both. Per-server SkipQuarantine still\napplies for the tool-level check on individual servers.","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"read_only_mode":{"type":"boolean"},"registries":{"description":"Registries configuration for MCP server discovery","items":{"$ref":"#/components/schemas/config.RegistryEntry"},"type":"array","uniqueItems":false},"registries_locked":{"description":"RegistriesLocked is an enterprise stub knob (MCP-866): when true, runtime\nadditions of custom registries (e.g. ` + "`" + `registry add-source` + "`" + `, the REST/MCP\nadd-source surface) are rejected so an administrator can pin the discovery\nsources. Built-in defaults are unaffected. Documented but otherwise inert\nbeyond the add-source rejection.","type":"boolean"},"require_mcp_auth":{"description":"Require authentication on /mcp endpoint (default: false)","type":"boolean"},"reveal_secret_headers":{"description":"RevealSecretHeaders, when true, disables the redaction of the\nsecret-bearing server fields — sensitive header values (Authorization,\nX-API-Key, Cookie, …), env-var secrets, and URL query credentials — in\nresponses from the ` + "`" + `upstream_servers` + "`" + ` MCP tool, the ` + "`" + `/api/v1/servers` + "`" + `\nREST API, and the SSE event stream. It also lets URL secrets echoed\ninto last_error / health.detail through unscrubbed.\n\nDefault false — sensitive values are surfaced masked as\n` + "`" + `••••\u003clast2\u003e (\u003cN\u003e chars)` + "`" + ` (error strings use ` + "`" + `***REDACTED***` + "`" + `) so an\nMCP agent cannot read Bearer tokens / API keys / URL secrets out of\nanother upstream's config (PR #425, issue #872). ${env:…}/${keyring:…}\nreferences are labels, not secrets, and pass through unchanged.\n\nThe Web UI / macOS tray edit forms work without seeing the real\nvalues: PATCH /api/v1/servers/{id} deep-merges (omitted keys are\npreserved, see ` + "`" + `headers_remove` + "`" + ` / ` + "`" + `env_remove` + "`" + ` for explicit\ndeletes), so clients compute a diff and only send the keys that\nactually changed. Redacted-but-unchanged values never round-trip\n— the backend keeps the real string. Set this to true if a\ndownstream tool genuinely needs raw values in the response.","type":"boolean"},"routing_mode":{"description":"Routing mode (Spec 031): how MCP tools are exposed to clients\nValid values: \"retrieve_tools\" (default), \"direct\", \"code_execution\"","type":"string"},"security":{"$ref":"#/components/schemas/config.SecurityConfig"},"sensitive_data_detection":{"$ref":"#/components/schemas/config.SensitiveDataDetectionConfig"},"server_concurrency_defaults":{"$ref":"#/components/schemas/config.ConcurrencyDefaults"},"telemetry":{"$ref":"#/components/schemas/config.TelemetryConfig"},"tls":{"$ref":"#/components/schemas/config.TLSConfig"},"tokenizer":{"$ref":"#/components/schemas/config.TokenizerConfig"},"tool_call_max_records_per_server":{"description":"Calls retained per server (default: 1000)","type":"integer"},"tool_call_max_response_size":{"description":"Bounds for the per-server tool-call history behind GET /api/v1/tool-calls\n(#1176). It is a recent-debugging window, not an audit log — the activity\nlog is the durable record — and it kept every upstream response whole,\nper server, forever. A non-positive value means \"use the default\", not\n\"disable\": this store must never be unbounded again, so there is\ndeliberately no off switch.","type":"integer"},"tool_discovery_interval":{"type":"string"},"tool_response_limit":{"type":"integer"},"tool_response_mode":{"description":"Tool response mode (Spec 085): how retrieve_tools serializes results.\nValid values: \"\" (= full), \"full\" (default: today's schema-bearing\nentries), \"compact\" (signature + first-sentence entries). Orthogonal to\nrouting_mode — routing_mode selects the tool SURFACE, this selects the\nSERIALIZATION within the retrieve_tools surface. Serialization-only: it\nnever affects the query, ranking, or result set. Hot-reloadable.","type":"string"},"tool_response_session_risk_warning":{"description":"ToolResponseSessionRiskWarning controls whether the prose ` + "`" + `warning` + "`" + ` field\nis included in the ` + "`" + `session_risk` + "`" + ` object returned by ` + "`" + `retrieve_tools` + "`" + `.\nThe structured fields (level, lethal_trifecta, has_open_world_tools, etc.)\nare always included. Default: false (quiet for LLM clients) — see issue #406.\nMost tools lack annotations, so the MCP-spec defaults treat them as fully\npermissive across all three risk axes, which makes the prose warning fire\non almost every call and wastes tokens.","type":"boolean"},"tools_limit":{"type":"integer"},"toon_min_savings_pct":{"description":"ToonMinSavingsPct is the minimum byte-savings percentage (validated\n1-90; 0/unset → 15) the complete TOON emission (marker + hint + body)\nmust achieve over the exact passthrough emission for adaptive mode to\nencode a block. Byte savings approximate token savings for the tabular\npayload class; the spec-083 profiler reports true token deltas.\nGlobal-only (no per-server override, FR-001).","type":"integer"},"toon_output":{"description":"ToonOutput selects the TOON encoding mode for call_tool_* result text\nblocks (spec 084): \"off\" (default — responses byte-identical to\npre-feature behavior), \"adaptive\" (encode only tabular-uniform payloads\nthat beat compact JSON by ToonMinSavingsPct), or \"always\"\n(benchmark/debug only — encodes every JSON-parseable block and can\nINCREASE token cost). Per-server override: ServerConfig.ToonOutput.\nResolved by ResolveToonOutput; hot-reloadable.","type":"string"},"top_k":{"description":"Deprecated: TopK is superseded by ToolsLimit and has no runtime effect. Kept for backward compatibility.","type":"integer"},"tray_endpoint":{"description":"Tray endpoint override (unix:// or npipe://)","type":"string"},"trusted_hosts":{"description":"TrustedHosts lists non-loopback Host header values accepted on loopback\nlisteners (GH #898). DNS-rebinding protection rejects requests whose Host\nheader is not a loopback address when mcpproxy listens on loopback; a\nreverse proxy (nginx → 127.0.0.1) forwarding the public domain in Host\ntrips it. Entries are hostnames, case-insensitive; an entry without a\nport matches any port, with a port it must match exactly; a leading dot\n(\".example.com\") is a subdomain wildcard. The single entry \"*\" disables\nHost and Origin validation entirely. The same list also validates the\nOrigin header when present (MCP spec DNS-rebinding defense). Empty\n(default) keeps full protection. Env override: MCPPROXY_TRUSTED_HOSTS\n(comma-separated).","items":{"type":"string"},"type":"array","uniqueItems":false},"update_check":{"$ref":"#/components/schemas/config.UpdateCheckConfig"}},"type":"object"},"config.CustomPattern":{"properties":{"category":{"description":"Category (defaults to \"custom\")","type":"string"},"keywords":{"description":"Keywords to match (mutually exclusive with Regex)","items":{"type":"string"},"type":"array","uniqueItems":false},"name":{"description":"Unique identifier for this pattern","type":"string"},"regex":{"description":"Regex pattern (mutually exclusive with Keywords)","type":"string"},"severity":{"description":"Risk level: critical, high, medium, low","type":"string"}},"type":"object"},"config.DeepScanConfig":{"description":"DeepScan is the opt-in \"deep scan\" layer (Spec 077 US3). It subsumes the\ndeprecated top-level scanner_fetch_package_source / scanner_disable_no_new_privileges\nkeys (migrated on load) and gates the heavy Docker-based scanners + source\nextraction. Disabled by default (FR-006): only the deterministic in-process\nbaseline scanner runs. A deep-scan failure NEVER changes the baseline verdict\n(FR-007/FR-008).","properties":{"disable_no_new_privileges":{"description":"DisableNoNewPrivileges, when true, omits the ` + "`" + `--security-opt\nno-new-privileges` + "`" + ` flag from scanner container runs (snap-docker/AppArmor\nescape hatch). Absorbs the deprecated top-level\nscanner_disable_no_new_privileges. Default false.","type":"boolean"},"enabled":{"description":"Enabled is the master opt-in for the heavy layer (FR-006). Default false.","type":"boolean"},"fetch_package_source":{"description":"FetchPackageSource controls whether the scanner fetches the PUBLISHED\nsource of package-runner servers (npx/uvx) — without executing it — when\nno local source is available. Absorbs the deprecated top-level\nscanner_fetch_package_source. Default (nil) is ENABLED within deep scan.","type":"boolean"},"scanners":{"description":"Scanners optionally restricts which deep scanners may run under the\numbrella (by scanner id). Empty ⇒ all enabled deep scanners are eligible.","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.DockerIsolationConfig":{"description":"Docker isolation settings","properties":{"cpu_limit":{"description":"CPU limit for containers","type":"string"},"default_images":{"additionalProperties":{"type":"string"},"description":"Map of runtime type to Docker image","type":"object"},"enable_cache_volume":{"description":"Mount shared cache volumes for faster restarts (default: true)","type":"boolean"},"enabled":{"description":"Global enable/disable for Docker isolation (legacy; superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments","items":{"type":"string"},"type":"array","uniqueItems":false},"log_driver":{"description":"Docker log driver (default: json-file)","type":"string"},"log_max_files":{"description":"Maximum number of log files (default: 3)","type":"string"},"log_max_size":{"description":"Maximum size of log files (default: 100m)","type":"string"},"memory_limit":{"description":"Memory limit for containers","type":"string"},"mode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"network_mode":{"description":"Docker network mode (default: bridge)","type":"string"},"registry":{"description":"Custom registry (defaults to docker.io)","type":"string"},"timeout":{"description":"Container startup timeout","type":"string"}},"type":"object"},"config.DockerRecoveryConfig":{"description":"Docker recovery settings","properties":{"enabled":{"description":"Enable Docker recovery monitoring (default: true)","type":"boolean"},"max_retries":{"description":"Maximum retry attempts (0 = unlimited)","type":"integer"},"notify_on_failure":{"description":"Show notification on recovery failure (default: true)","type":"boolean"},"notify_on_retry":{"description":"Show notification on each retry (default: false)","type":"boolean"},"notify_on_start":{"description":"Show notification when recovery starts (default: true)","type":"boolean"},"notify_on_success":{"description":"Show notification on successful recovery (default: true)","type":"boolean"},"persistent_state":{"description":"Save recovery state across restarts (default: true)","type":"boolean"}},"type":"object"},"config.FeatureFlags":{"description":"Deprecated: Features flags are unused and have no runtime effect. Kept for backward compatibility.","properties":{"enable_async_storage":{"type":"boolean"},"enable_caching":{"type":"boolean"},"enable_contract_tests":{"type":"boolean"},"enable_debug_logging":{"description":"Development features","type":"boolean"},"enable_docker_isolation":{"type":"boolean"},"enable_event_bus":{"type":"boolean"},"enable_health_checks":{"type":"boolean"},"enable_metrics":{"type":"boolean"},"enable_oauth":{"description":"Security features","type":"boolean"},"enable_observability":{"description":"Observability features","type":"boolean"},"enable_quarantine":{"type":"boolean"},"enable_runtime":{"description":"Runtime features","type":"boolean"},"enable_search":{"description":"Storage features","type":"boolean"},"enable_sse":{"type":"boolean"},"enable_tracing":{"type":"boolean"},"enable_tray":{"type":"boolean"},"enable_web_ui":{"description":"UI features","type":"boolean"}},"type":"object"},"config.IntentDeclarationConfig":{"description":"Intent declaration settings (Spec 018)","properties":{"strict_server_validation":{"description":"StrictServerValidation controls whether server annotation mismatches\ncause rejection (true) or just warnings (false).\nDefault: true (reject mismatches)","type":"boolean"}},"type":"object"},"config.IsolationConfig":{"description":"Per-server isolation settings","properties":{"enabled":{"description":"Enable Docker isolation for this server (nil = inherit global; legacy, superseded by Mode)","type":"boolean"},"extra_args":{"description":"Additional docker run arguments for this server","items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"description":"Custom Docker image (overrides default)","type":"string"},"log_driver":{"description":"Docker log driver override for this server","type":"string"},"log_max_files":{"description":"Maximum number of log files override","type":"string"},"log_max_size":{"description":"Maximum size of log files override","type":"string"},"mode":{"$ref":"#/components/schemas/config.IsolationMode"},"network_mode":{"description":"Custom network mode for this server","type":"string"},"working_dir":{"description":"Custom working directory in container","type":"string"}},"type":"object"},"config.IsolationMode":{"description":"Isolation mode: \"docker\" | \"sandbox\" | \"none\" (MCP-34.2). Unset per-server inherits the global mode; unset globally falls back to the legacy \"enabled\" flag (true ⇒ docker, false ⇒ none)","type":"string","x-enum-varnames":["IsolationModeDocker","IsolationModeSandbox","IsolationModeNone"]},"config.LogConfig":{"description":"Logging configuration","properties":{"compress":{"type":"boolean"},"enable_console":{"type":"boolean"},"enable_file":{"type":"boolean"},"filename":{"type":"string"},"json_format":{"type":"boolean"},"level":{"type":"string"},"log_dir":{"description":"Custom log directory","type":"string"},"max_age":{"description":"days","type":"integer"},"max_backups":{"description":"number of backup files","type":"integer"},"max_size":{"description":"MB","type":"integer"}},"type":"object"},"config.MetricsExporterConfig":{"description":"Metrics gates the Prometheus /metrics scrape endpoint (MCP-32). Disabled\nby default — operators opt in for k8s/enterprise deployments.","properties":{"enabled":{"description":"Enabled exposes /metrics on the existing HTTP listener when true.","type":"boolean"}},"type":"object"},"config.OAuthConfig":{"description":"OAuth configuration (keep even when empty to signal OAuth requirement)","properties":{"client_id":{"type":"string"},"client_secret":{"type":"string"},"extra_params":{"additionalProperties":{"type":"string"},"description":"Additional OAuth parameters (e.g., RFC 8707 resource)","type":"object"},"pkce_enabled":{"type":"boolean"},"redirect_uri":{"type":"string"},"scopes":{"items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ObservabilityConfig":{"description":"Observability settings (Spec 069): usage aggregate cache/persistence cadence.","properties":{"metrics":{"$ref":"#/components/schemas/config.MetricsExporterConfig"},"tracing":{"$ref":"#/components/schemas/config.TracingExporterConfig"},"usage_cache_ttl":{"description":"UsageCacheTTL bounds the freshness of the usage endpoint's read cache for\nwide windows (FR-005). Default 5s.","type":"string"},"usage_persist_interval":{"description":"UsagePersistInterval is how often the actor-owned usage aggregate snapshot\nis flushed to storage. Default 30s.","type":"string"}},"type":"object"},"config.OutputSanitisationConfig":{"description":"Output sanitisation settings (Spec 054 Track B)","properties":{"max_redactions":{"description":"cap on redactions per response; default 100","type":"integer"},"response_action":{"description":"\"spotlight\" | \"redact\" | \"block\"; default \"spotlight\"","type":"string"},"spotlight_untrusted":{"description":"wrap untrusted output in spotlight markers; default true","type":"boolean"},"strip_classes":{"description":"classes to strip: ansi/c0c1/bidi/zero_width","items":{"type":"string"},"type":"array","uniqueItems":false},"strip_control_chars":{"description":"strip control-character classes; default false","type":"boolean"}},"type":"object"},"config.OutputValidationConfig":{"description":"Output-schema validation settings (Spec 056)","properties":{"max_bytes":{"description":"structured payload byte cap; default 5\u003c\u003c20","type":"integer"},"max_depth":{"description":"nesting depth cap; default 64","type":"integer"},"missing_structured_content":{"description":"\"allow\" | \"block\"; default \"allow\"","type":"string"},"mode":{"description":"\"off\" | \"warn\" | \"strict\"; default \"warn\"","type":"string"}},"type":"object"},"config.ProfileConfig":{"properties":{"name":{"description":"URL slug, validated","type":"string"},"servers":{"description":"references to mcpServers[].name","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.RegistryEntry":{"properties":{"count":{"description":"number or string","type":"string"},"description":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"},"protocol":{"type":"string"},"provenance":{"description":"Provenance is the trust tag for this registry (MCP-866):\nRegistryProvenanceOfficial for built-in defaults, RegistryProvenanceCustom\nfor user-added registries. It is authoritatively (re)computed by the\nregistries merge from whether the ID is a shipped default — a user cannot\nclaim \"official\" by writing it into their config.","type":"string"},"requires_key":{"description":"RequiresKey marks a registry that needs an API key to be queried. When\ntrue and no key is configured, the registry is skipped/marked unavailable\nrather than failing the whole search (FR-008).","type":"boolean"},"servers_url":{"type":"string"},"tags":{"items":{"type":"string"},"type":"array","uniqueItems":false},"url":{"type":"string"}},"type":"object"},"config.SecurityConfig":{"description":"Security scanner settings (Spec 039)","properties":{"auto_baseline_scan":{"description":"AutoBaselineScan is the kill-switch for the AUTOMATIC, informational\nPass-1 baseline scan: the free in-process TPA scan mcpproxy runs for every\nnewly admitted server (any trust mode) and, once per installation, over\npre-existing servers that have never been scanned.\n\nInformational ONLY: the resulting verdict populates the security badge and\nthe scan summary, and NEVER gates quarantine or approval. The\ntrust_mode:\"scan\" admission gate is a separate path and is unaffected by\nthis flag.\n\nDefault (nil) is ENABLED. Set to false to suppress every automatic scan\n(manual scans keep working). Env override: MCPPROXY_AUTO_BASELINE_SCAN,\nwhich wins over this field on every path.","type":"boolean"},"deep_scan":{"$ref":"#/components/schemas/config.DeepScanConfig"},"integrity_check_interval":{"type":"string"},"integrity_check_on_restart":{"type":"boolean"},"runtime_read_only":{"type":"boolean"},"runtime_tmpfs_size":{"type":"string"},"scan_timeout_default":{"type":"string"},"scanner_disable_no_new_privileges":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.DisableNoNewPrivileges\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.IsDisableNoNewPrivileges. Cleared after migration.\n\nScannerDisableNoNewPrivileges, when true, omits the\n` + "`" + `--security-opt no-new-privileges` + "`" + ` flag from scanner container runs.\n\nBackground: snap-installed Docker on Ubuntu confines dockerd under the\n` + "`" + `snap.docker.dockerd` + "`" + ` AppArmor profile. When runc tries to transition\nthe container into the inner ` + "`" + `docker-default` + "`" + ` profile to exec the\nentrypoint, AppArmor refuses the transition because NO_NEW_PRIVS\nforbids privilege/profile changes on exec — the result is EPERM\n(\"operation not permitted\") and every scanner fails immediately.\n\nSet this to true ONLY on hosts hitting that incompatibility. Scanner\ncontainers still run with read-only rootfs, tmpfs /tmp, no-network by\ndefault, and read-only source mounts, so the marginal isolation loss\nis small. The preferred fix remains replacing snap docker with a\ndistro-packaged docker.","type":"boolean"},"scanner_fetch_package_source":{"description":"Deprecated (Spec 077 US3): migrated on load into DeepScan.FetchPackageSource\n(see migrateDeepScanConfig). Retained only so existing configs that still carry\nthe top-level key parse; consumers MUST read the effective value via\nSecurityConfig.EffectiveFetchPackageSource. Cleared after migration.\n\nScannerFetchPackageSource controls whether the scanner fetches the\nPUBLISHED source of package-runner servers (npx/uvx) — without executing\nit — when no local source is available (no Docker container, no local\npackage cache, no working_dir). This is the primary quarantine/scan\ntarget: a quarantined-on-add server is never run locally, so without this\nthe scan degrades to tool-definitions-only (no real source-level\nanalysis). See MCP-2206.\n\nFetching uses ` + "`" + `npm pack --ignore-scripts` + "`" + ` (npm) and ` + "`" + `uv pip download` + "`" + ` /\n` + "`" + `pip download` + "`" + ` with ` + "`" + `--only-binary=:all:` + "`" + ` (Python), which only download +\nunpack archives and NEVER run install, build, or setup.py — a scanner must\nnot execute the untrusted code it is scanning. The Python\n` + "`" + `--only-binary=:all:` + "`" + ` flag is required because downloading an sdist would\ninvoke its build backend (setup.py); packages with no wheel fall back to\ntool-definitions-only instead. Extraction is hardened against path\ntraversal and decompression bombs.\n\nDefault (nil) is ENABLED. Set to false on air-gapped deployments to\nforbid the scanner's network egress; such servers then fall back to the\ntool-definitions-only scan with no regression.","type":"boolean"},"scanner_registry_url":{"type":"string"},"tpa_bundle_path":{"description":"TPABundlePath is the filesystem path to the tpa-db scanner-bundle.json\nthe offline TPA scanner runs (spec 086 FR-019: the signature-DB location\nMUST be configuration-driven, not hardcoded). Empty (the default) runs the\ncorpus embedded in this build.\n\nEnv override: MCPPROXY_TPA_BUNDLE_PATH. Hot-reloadable — the path is\nre-read on every config.reloaded event via\nscanner.Service.ApplySecurityConfig, so a corpus refresh needs no restart.\nA configured bundle that fails to read/parse/version-check/compile is\nREFUSED and the previously active corpus stays live (fail-closed, never\nfail-empty); the reason is logged and surfaced in the security overview's\nsignature_bundle.load_error.","type":"string"}},"type":"object"},"config.SensitiveDataDetectionConfig":{"description":"Sensitive data detection settings (Spec 026)","properties":{"categories":{"additionalProperties":{"type":"boolean"},"description":"Enable/disable specific detection categories","type":"object"},"custom_patterns":{"description":"User-defined detection patterns","items":{"$ref":"#/components/schemas/config.CustomPattern"},"type":"array","uniqueItems":false},"enabled":{"description":"Enable sensitive data detection (default: true)","type":"boolean"},"entropy_threshold":{"description":"Shannon entropy threshold for high-entropy detection (default: 4.5)","type":"number"},"max_payload_size_kb":{"description":"Max size to scan before truncating (default: 1024)","type":"integer"},"scan_requests":{"description":"Scan tool call arguments (default: true)","type":"boolean"},"scan_responses":{"description":"Scan tool responses (default: true)","type":"boolean"},"sensitive_keywords":{"description":"Keywords to flag","items":{"type":"string"},"type":"array","uniqueItems":false}},"type":"object"},"config.ServerConfig":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve tool\nchanges/additions (disabling per-server rug-pull protection). Supersedes\nskip_quarantine. MCP-2930 only ACCEPTS, persists, and migrates this flag — it\nis NOT yet consulted at runtime; auto-approval is still governed by\nSkipQuarantine until the trust-baseline behavior change (MCP-2931) migrates the\nruntime consumers onto it.\nTri-state pointer (mirrors QuarantineEnabled): nil = unset (inherit/migrate\nfrom legacy skip_quarantine), explicit true/false = honored as-is so an\nexplicit auto_approve_tool_changes:false overrides a legacy skip_quarantine:true.\nRead via IsAutoApproveToolChanges().","type":"boolean"},"command":{"type":"string"},"created":{"type":"string"},"disabled_tools":{"description":"Denylist: these tools are hidden; mutually exclusive with enabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"enabled":{"type":"boolean"},"enabled_tools":{"description":"Allowlist: only these tools are exposed; mutually exclusive with disabled_tools","items":{"type":"string"},"type":"array","uniqueItems":false},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts overrides whether this server's advertised MCP prompts are\naggregated into mcpproxy's prompts/list. nil (default) inherits the\ndefault-aggregate behavior (included if the server advertises\nCapabilities.Prompts); false excludes it regardless of capability.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"description":"For HTTP servers","type":"object"},"health_check_interval":{"description":"Per-server discovery \u0026 health-check overrides (spec 074). Same *Duration\ntri-state as the global keys: nil = inherit the global value (or default),\npointer to 0s = disabled for this server, positive = that interval.\nHealthCheckInterval is fully wired into the per-server health loop;\nToolDiscoveryInterval is accepted/validated and round-trips for\nforward-compat, but the periodic index sweep is governed by the global\ncadence in this iteration (see spec 074 plan §C).","type":"string"},"init_timeout":{"description":"InitTimeout overrides the global init_timeout for this server's MCP\n` + "`" + `initialize` + "`" + ` handshake deadline (MCP-3322 / GH #760). *Duration tri-state:\nnil = inherit the global value (or 30s default), positive = that deadline.\nResolved by Config.ResolveInitTimeout; validated to {0} ∪ [1s, 30m]. Raise\nthis for upstreams that do legitimate first-run warmup (e.g. caching many\nchannels/users) before responding to ` + "`" + `initialize` + "`" + `.","type":"string"},"isolation":{"$ref":"#/components/schemas/config.IsolationConfig"},"launcher_wait_timeout":{"description":"LauncherWaitTimeout caps how long mcpproxy will wait for a locally-launched\nHTTP/SSE upstream's URL to become reachable after Spawn(). Only consulted\nwhen the server is configured with both Command and an HTTP/SSE URL — i.e.,\nmcpproxy starts the process AND connects via network. Stdio servers ignore\nthis field. Zero or unset → 30s default.","type":"string"},"max_concurrent_requests":{"description":"Per-server concurrency overrides — scope (c) of FR-020 (spec 093, #955).\nTri-state per setting, exactly like HealthCheckInterval: absent = inherit\nthe per-server default set (server_concurrency_defaults), explicit 0 =\ndisable that setting for this server (0 max = no per-server limiter at\nall; 0 queue_size = no pending capacity, shed immediately at the cap),\npositive = override. The global aggregate limiter is never inherited from\nhere — it applies on top, so effective concurrency is min(per-server,\nglobal). Resolved by Config.ResolveServerConcurrency.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/config.OAuthConfig"},"protocol":{"description":"stdio, http, sse, streamable-http, auto","type":"string"},"quarantined":{"description":"Security quarantine status","type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets a disconnected server","type":"boolean"},"shared":{"description":"Server edition: shared with all users","type":"boolean"},"skip_quarantine":{"description":"SkipQuarantine is DEPRECATED (MCP-2930): use AutoApproveToolChanges instead.\nKept for back-compat parsing; on config load a legacy skip_quarantine:true is\nmigrated to auto_approve_tool_changes:true only when the new field is unset\n(see normalizeServerQuarantineFlags).","type":"boolean"},"source_registry_id":{"description":"SourceRegistryID records which registry this server was added from (empty\nfor manually-configured servers). MCP-866: surfaced in the approval /\nquarantine view so a reviewer can see a server's origin.","type":"string"},"source_registry_provenance":{"description":"SourceRegistryProvenance records the source registry's provenance at add\ntime (RegistryProvenanceOfficial / RegistryProvenanceCustom). It is purely\ninformational (MCP-1072) — surfaced so a reviewer can see a server's origin\n— and no longer gates quarantine or skip_quarantine.","type":"string"},"tool_discovery_interval":{"type":"string"},"toon_output":{"description":"ToonOutput overrides the global toon_output mode for this server's\ntools (spec 084, FR-001). Plain string, not a pointer: \"\"/absent =\ninherit the global value; \"off\"|\"adaptive\"|\"always\" = override (\"off\"\nis the explicit force-off). Resolved by Config.ResolveToonOutput.","type":"string"},"trust_mode":{"description":"TrustMode is the per-server trust tier: auto|scan|manual. Supersedes\nauto_approve_tool_changes (spec 086). An empty value is derived from the\nlegacy fields at load via normalizeServerQuarantineFlags; the single\nresolution point is EffectiveTrustMode(), which treats an empty or\nunrecognized value as manual (secure by default). Read via\nEffectiveTrustMode(), never the raw string.","type":"string"},"updated":{"type":"string"},"url":{"type":"string"},"working_dir":{"description":"Working directory for stdio servers","type":"string"}},"type":"object"},"config.TLSConfig":{"description":"TLS configuration","properties":{"certs_dir":{"description":"Directory for certificates","type":"string"},"enabled":{"description":"Enable HTTPS","type":"boolean"},"hsts":{"description":"Enable HTTP Strict Transport Security","type":"boolean"},"require_client_cert":{"description":"Enable mTLS","type":"boolean"}},"type":"object"},"config.TelemetryConfig":{"description":"Telemetry settings (Spec 036)","properties":{"anonymous_id":{"description":"Auto-generated UUIDv4","type":"string"},"anonymous_id_created_at":{"description":"Spec 042 (Tier 2) additions — all default-zero, all backwards-compatible.","type":"string"},"enabled":{"description":"Default: true (opt-out)","type":"boolean"},"endpoint":{"description":"Override for testing","type":"string"},"last_reported_version":{"description":"Upgrade funnel","type":"string"},"last_startup_outcome":{"description":"success|port_conflict|db_locked|...","type":"string"},"notice_shown":{"description":"First-run notice flag","type":"boolean"}},"type":"object"},"config.TokenizerConfig":{"description":"Tokenizer configuration for token counting","properties":{"default_model":{"description":"Default model for tokenization (e.g., \"gpt-4\")","type":"string"},"enabled":{"description":"Enable token counting","type":"boolean"},"encoding":{"description":"Default encoding (e.g., \"cl100k_base\")","type":"string"}},"type":"object"},"config.TracingExporterConfig":{"description":"Tracing gates the OpenTelemetry OTLP trace exporter (MCP-32). Disabled by\ndefault.","properties":{"enabled":{"description":"Enabled turns on OTLP trace export for tool calls and upstream hops.","type":"boolean"},"endpoint":{"description":"Endpoint is the collector address as host:port (no scheme), e.g.\n\"localhost:4318\" for http or \"localhost:4317\" for grpc.","type":"string"},"protocol":{"description":"Protocol selects the OTLP transport: \"http\" or \"grpc\".","type":"string"},"sample_rate":{"description":"SampleRate is the head-based trace sampling ratio in [0,1]. Default 0.1.\nOmit the key for the 0.1 default; set it to 0 to sample nothing.","type":"number"}},"type":"object"},"config.UpdateCheckConfig":{"description":"Update-check settings (Spec 079 FR-012): config-file control of the\nbackground upgrade-awareness checker (internal/updatecheck). nil =\nenabled on the stable channel (existing default behavior). The existing\nenvironment switches keep working and WIN over these keys (FR-014):\nMCPPROXY_DISABLE_AUTO_UPDATE=true force-disables even when\nenabled=true, and MCPPROXY_ALLOW_PRERELEASE_UPDATES=true force-selects\nthe rc channel even when channel=stable.","properties":{"channel":{"description":"Channel selects which releases are offered as updates: \"stable\"\n(default; prereleases never offered) or \"rc\" (prereleases included).\nEmpty resolves to stable. Validated in ValidateDetailed.\n\nNOTE: for a RELEASED build the running binary's own version is\nauthoritative and overrides this field — a stable build is never\noffered an RC (even with channel=rc), and an RC build always tracks the\nrc channel. This field only takes effect on dev/unstamped builds. See\ninternal/updatecheck.Checker.IncludePrereleases.","type":"string"},"enabled":{"description":"Enabled gates all update checking. Tri-state: nil/absent = enabled\n(default true, matching pre-079 behavior). 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Never disclosed to an agent token.","type":"string"},"id":{"type":"string"},"reason":{"$ref":"#/components/schemas/contracts.PreflightReason"},"remediation":{"type":"string"},"retryable":{"type":"boolean"},"status":{"$ref":"#/components/schemas/contracts.PreflightStatus"}},"type":"object"},"contracts.PreflightVerdict":{"type":"string","x-enum-varnames":["PreflightVerdictReady","PreflightVerdictDegradedRetryable","PreflightVerdictBlocked","PreflightVerdictUnknownIDs"]},"contracts.QuarantineStats":{"description":"Tool quarantine metrics for this server","properties":{"blocked_count":{"description":"Number of disabled (blocked) tools","type":"integer"},"changed_count":{"description":"Number of tools whose description/schema changed since approval","type":"integer"},"pending_count":{"description":"Number of newly discovered tools awaiting approval","type":"integer"}},"type":"object"},"contracts.RefreshRegistryResponse":{"properties":{"cleared":{"description":"number of cached entries dropped","type":"integer"},"registry_id":{"type":"string"}},"type":"object"},"contracts.Registry":{"properties":{"count":{"description":"number or string","type":"string"},"description":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"},"protocol":{"type":"string"},"provenance":{"description":"Provenance is the trust tag (MCP-866): \"official/trusted\" for built-in\ndefaults, \"custom/unverified\" for user-added registries.","type":"string"},"servers_url":{"type":"string"},"tags":{"items":{"type":"string"},"type":"array","uniqueItems":false},"trusted":{"description":"Trusted indicates whether this is an official, shipped-by-default\nregistry. Trust is derived from membership in the default set, never\nfrom self-assertion in config.","type":"boolean"},"url":{"type":"string"}},"type":"object"},"contracts.RegistryCacheInfo":{"properties":{"age_seconds":{"type":"number"},"stale":{"type":"boolean"}},"type":"object"},"contracts.RegistryUnavailable":{"properties":{"reason":{"type":"string"}},"type":"object"},"contracts.ReplayToolCallRequest":{"properties":{"arguments":{"description":"Modified arguments for replay","type":"object"}},"type":"object"},"contracts.ReplayToolCallResponse":{"properties":{"error":{"description":"Error if replay failed","type":"string"},"new_call_id":{"description":"ID of the newly created call","type":"string"},"new_tool_call":{"$ref":"#/components/schemas/contracts.ToolCallRecord"},"replayed_from":{"description":"Original call ID","type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.RepositoryInfo":{"description":"Detected package info","properties":{"npm":{"$ref":"#/components/schemas/contracts.NPMPackageInfo"}},"type":"object"},"contracts.RepositoryServer":{"properties":{"connect_url":{"description":"Alternative connection URL","type":"string"},"created_at":{"type":"string"},"description":{"type":"string"},"id":{"type":"string"},"install_cmd":{"description":"Installation command","type":"string"},"name":{"type":"string"},"registry":{"description":"Which registry this came from","type":"string"},"repository_info":{"$ref":"#/components/schemas/contracts.RepositoryInfo"},"source_code_url":{"description":"Source repository URL","type":"string"},"updated_at":{"type":"string"},"url":{"description":"MCP endpoint for remote servers only","type":"string"}},"type":"object"},"contracts.SearchRegistryServersResponse":{"properties":{"cache":{"$ref":"#/components/schemas/contracts.RegistryCacheInfo"},"query":{"type":"string"},"registry_id":{"type":"string"},"servers":{"items":{"$ref":"#/components/schemas/contracts.RepositoryServer"},"type":"array","uniqueItems":false},"tag":{"type":"string"},"total":{"type":"integer"},"unavailable":{"$ref":"#/components/schemas/contracts.RegistryUnavailable"}},"type":"object"},"contracts.SearchResult":{"properties":{"matches":{"type":"integer"},"score":{"type":"number"},"snippet":{"type":"string"},"tool":{"$ref":"#/components/schemas/contracts.Tool"}},"type":"object"},"contracts.SearchToolsResponse":{"properties":{"query":{"type":"string"},"results":{"items":{"$ref":"#/components/schemas/contracts.SearchResult"},"type":"array","uniqueItems":false},"took":{"type":"string"},"total":{"type":"integer"}},"type":"object"},"contracts.SecurityScanSummary":{"description":"Latest security scan results summary","properties":{"deep_scan":{"$ref":"#/components/schemas/contracts.DeepScanDescriptor"},"finding_counts":{"$ref":"#/components/schemas/contracts.FindingCounts"},"last_scan_at":{"type":"string"},"risk_score":{"description":"0-100","type":"integer"},"scanners_failed":{"type":"integer"},"scanners_run":{"description":"Scanner coverage for the primary (baseline) scan pass — informational only.\nSpec 077 US3 (FR-008/FR-014): Status is derived SOLELY from the\ndeterministic baseline findings; a failed Docker deep scanner no longer\ndowngrades a clean verdict. That failure is surfaced via DeepScan instead.","type":"integer"},"scanners_total":{"type":"integer"},"status":{"description":"\"clean\", \"warnings\", \"dangerous\", \"failed\", \"not_scanned\", \"scanning\"","type":"string"}},"type":"object"},"contracts.Server":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"authenticated":{"description":"OAuth authentication status","type":"boolean"},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges mirrors config.ServerConfig.AutoApproveToolChanges\n(MCP-2930): the per-server intent to auto-approve new/changed tools past\nthe trust baseline. Tri-state *bool — nil means \"never set\" (omitted from\nthe payload), so the Web UI toggle (MCP-2932) can distinguish unset from\nan explicit false. Read-only on the GET path; PATCH/POST accept it via\nAddServerRequest.","type":"boolean"},"command":{"type":"string"},"connected":{"type":"boolean"},"connected_at":{"type":"string"},"connecting":{"type":"boolean"},"created":{"type":"string"},"diagnostic":{"$ref":"#/components/schemas/contracts.Diagnostic"},"enabled":{"type":"boolean"},"env":{"additionalProperties":{"type":"string"},"type":"object"},"error_code":{"type":"string"},"expose_prompts":{"description":"ExposePrompts mirrors config.ServerConfig.ExposePrompts (F9): the per-server\nprompt-aggregation override. Tri-state *bool — nil/omitted means \"inherit\ndefault aggregation\". Surfaced on GET so a caller that PATCHed the override\ncan read it back; PATCH/POST accept it via AddServerRequest.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"health":{"$ref":"#/components/schemas/contracts.HealthStatus"},"id":{"type":"string"},"init_timeout":{"description":"InitTimeout mirrors config.ServerConfig.InitTimeout (MCP-3322 / GH #760):\nthe per-server MCP ` + "`" + `initialize` + "`" + ` handshake deadline override. Serialized as\na duration string (e.g. \"120s\"); nil/omitted means \"inherit the global\ndefault\". Surfaced on the GET path so clients can read back a configured\noverride; PATCH/POST accept it via AddServerRequest.","type":"string"},"isolation":{"$ref":"#/components/schemas/contracts.IsolationConfig"},"isolation_defaults":{"$ref":"#/components/schemas/contracts.IsolationDefaults"},"isolation_effective":{"$ref":"#/components/schemas/contracts.IsolationEffective"},"last_error":{"type":"string"},"last_reconnect_at":{"type":"string"},"last_retry_time":{"type":"string"},"max_concurrent_requests":{"description":"Spec 093 (GH #955) — per-server concurrency overrides, scope (c) of\nFR-020. Each setting is tri-state: nil (omitted) means \"inherit\nserver_concurrency_defaults\", 0 disables that setting for this server,\npositive overrides it. Surfaced on the GET path so a caller can read back\nwhat it set; PATCH/POST accept them via AddServerRequest. The effective\nconcurrency for a server is additionally bounded by the global aggregate\nlimiter, which is NOT an inheritance source for these fields.","type":"integer"},"name":{"type":"string"},"oauth":{"$ref":"#/components/schemas/contracts.OAuthConfig"},"oauth_status":{"description":"OAuth status: \"authenticated\", \"expired\", \"error\", \"none\"","type":"string"},"protocol":{"type":"string"},"quarantine":{"$ref":"#/components/schemas/contracts.QuarantineStats"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_count":{"type":"integer"},"reconnect_on_use":{"description":"Attempt reconnection when a tool call targets this disconnected server","type":"boolean"},"retry_count":{"type":"integer"},"retry_stopped":{"description":"RetryStopped reports that automatic reconnection has been given up for\ngood because the failure is deterministic and unrecoverable — a missing\nbinary, an image without the interpreter, an unparseable config (GH\n#1145). It is NOT ordinary exponential backoff, which keeps retrying;\nnothing will happen until the user fixes the config or restarts the\nserver. RetryStoppedCode is the stable MCPX_* code that proved it and\nRetryStoppedReason the catalog message explaining how to fix it. All three\nare omitted for servers that are healthy or still retrying.","type":"boolean"},"retry_stopped_code":{"type":"string"},"retry_stopped_reason":{"type":"string"},"security_scan":{"$ref":"#/components/schemas/contracts.SecurityScanSummary"},"should_retry":{"type":"boolean"},"source_registry_id":{"description":"MCP-901 — registry provenance of an upstream that was added from a\nregistry. SourceRegistryID names the source registry (empty for\nmanually-configured servers); SourceRegistryProvenance is the trust tag\nrecorded at add time (\"official/trusted\" or \"custom/unverified\"). Both\nare projected from config.ServerConfig so the approval/quarantine view\ncan render an \"added from \u003cregistry\u003e · unverified\" origin badge. Optional\nand omitted when empty — clients that pre-date this treat them as absent.","type":"string"},"source_registry_provenance":{"type":"string"},"status":{"type":"string"},"token_expires_at":{"description":"When the OAuth token expires (ISO 8601)","type":"string"},"tool_count":{"type":"integer"},"tool_list_token_size":{"description":"Token size for this server's tools","type":"integer"},"trust_mode":{"description":"TrustMode mirrors config.ServerConfig.TrustMode (spec 086): the per-server\ntrust tier (\"auto\"/\"scan\"/\"manual\"). Surfaced on the GET path so clients can\nread back the persisted mode; PATCH/POST accept it via AddServerRequest.\nOmitted when empty (server predates the field / relies on legacy flags).","type":"string"},"updated":{"type":"string"},"url":{"type":"string"},"user_logged_out":{"description":"True if user explicitly logged out (prevents auto-reconnection)","type":"boolean"},"working_dir":{"type":"string"}},"type":"object"},"contracts.ServerActionResponse":{"properties":{"action":{"type":"string"},"async":{"type":"boolean"},"server":{"type":"string"},"success":{"type":"boolean"}},"type":"object"},"contracts.ServerStats":{"properties":{"connected_servers":{"type":"integer"},"docker_containers":{"type":"integer"},"quarantined_servers":{"type":"integer"},"token_metrics":{"$ref":"#/components/schemas/contracts.ServerTokenMetrics"},"total_servers":{"type":"integer"},"total_tools":{"type":"integer"}},"type":"object"},"contracts.ServerTokenMetrics":{"properties":{"average_query_result_size":{"description":"Typical retrieve_tools output (tokens)","type":"integer"},"per_server_tool_list_sizes":{"additionalProperties":{"type":"integer"},"description":"Token size per server","type":"object"},"saved_tokens":{"description":"Difference","type":"integer"},"saved_tokens_percentage":{"description":"Percentage saved","type":"number"},"total_server_tool_list_size":{"description":"All upstream tools combined (tokens)","type":"integer"}},"type":"object"},"contracts.SuccessResponse":{"properties":{"data":{"type":"object"},"success":{"type":"boolean"}},"type":"object"},"contracts.TokenMetrics":{"description":"Token usage metrics (nil for older records)","properties":{"encoding":{"description":"Encoding used (e.g., cl100k_base)","type":"string"},"estimated_cost":{"description":"Optional cost estimate","type":"number"},"input_tokens":{"description":"Tokens in the request","type":"integer"},"model":{"description":"Model used for tokenization","type":"string"},"output_tokens":{"description":"Tokens in the response","type":"integer"},"total_tokens":{"description":"Total tokens (input + output)","type":"integer"},"truncated_tokens":{"description":"Tokens removed by truncation","type":"integer"},"was_truncated":{"description":"Whether response was truncated","type":"boolean"}},"type":"object"},"contracts.Tool":{"properties":{"annotations":{"$ref":"#/components/schemas/contracts.ToolAnnotation"},"approval_status":{"type":"string"},"config_denied":{"description":"ConfigDenied is true when the tool is denied by the server's static\nenabled_tools / disabled_tools config. The user cannot override this toggle.","type":"boolean"},"description":{"type":"string"},"disabled":{"description":"Disabled mirrors ToolApprovalRecord.Disabled so per-tool enable state is\navailable without a second round-trip to the approvals endpoint. Absent\nin the JSON when false (default) to keep responses compact.","type":"boolean"},"hash":{"description":"Hash is the tool's current stored hash rendered in the preflight pin\nformat \"sha256/v{N}:{hex}\" (Spec 098 FR-011), where N is the approval\nrecord's HashSchemaVersion. It is the authoring surface for\n` + "`" + `POST /api/v1/preflight` + "`" + ` pins and ` + "`" + `mcpproxy tools preflight --pin` + "`" + `:\ncopy the value straight into a pin.\n\nDisclosure is OPERATOR TIER ONLY — same rule as the preflight per-tool\nresult. The field is omitted for agent-token callers and for tools with\nno stored hash (no approval record yet, or a record written before\nhashes existed).","type":"string"},"held_reason":{"description":"HeldReason, HeldVerdict and HeldSignals mirror the same-named fields on\nstorage.ToolApprovalRecord: the offline-scan evidence that made\ntrust_mode: scan hold this tool for review (spec 086 FR-018). HeldSignals\nnames the matched deterministic check ids, e.g.\n\"tpa.TPA-2026-0001.hidden_instruction\", so a reviewer can see WHY the tool\nis held. All three are omitted for tools that are not held by the scan gate\n(including every record written before the field existed).","type":"string"},"held_signals":{"items":{"type":"string"},"type":"array","uniqueItems":false},"held_verdict":{"type":"string"},"last_used":{"type":"string"},"name":{"type":"string"},"schema":{"type":"object"},"server_name":{"type":"string"},"usage":{"type":"integer"}},"type":"object"},"contracts.ToolAnnotation":{"description":"Tool behavior hints snapshot","properties":{"destructiveHint":{"type":"boolean"},"idempotentHint":{"type":"boolean"},"openWorldHint":{"type":"boolean"},"readOnlyHint":{"type":"boolean"},"title":{"type":"string"}},"type":"object"},"contracts.ToolCallRecord":{"description":"The new tool call record","properties":{"annotations":{"$ref":"#/components/schemas/contracts.ToolAnnotation"},"arguments":{"description":"Tool arguments","type":"object"},"arguments_truncated":{"description":"ArgumentsTruncated marks Arguments as a placeholder rather than the\narguments the tool was called with. Replaying such a record without\nsupplying arguments explicitly is refused.","type":"boolean"},"config_path":{"description":"Active config file path","type":"string"},"duration":{"description":"Duration in nanoseconds","type":"integer"},"error":{"description":"Error message (failure only)","type":"string"},"execution_type":{"description":"\"direct\" or \"code_execution\"","type":"string"},"id":{"description":"Unique identifier","type":"string"},"mcp_client_name":{"description":"MCP client name from InitializeRequest","type":"string"},"mcp_client_version":{"description":"MCP client version","type":"string"},"mcp_session_id":{"description":"MCP session identifier","type":"string"},"metrics":{"$ref":"#/components/schemas/contracts.TokenMetrics"},"parent_call_id":{"description":"Links nested calls to parent code_execution","type":"string"},"request_id":{"description":"Request correlation ID","type":"string"},"response":{"description":"Tool response (success only)","type":"object"},"response_bytes":{"description":"Marshalled response size before truncation","type":"integer"},"response_truncated":{"description":"ResponseTruncated and ResponseBytes describe a STORAGE-side cut (#1176):\nthe caller received the response whole, and only the persisted copy was\nshortened to tool_call_max_response_size. When ResponseTruncated is true\nthe Response object carries {truncated, original_bytes, preview, note}\ninstead of the upstream result, and ResponseBytes is its size before the\ncut.","type":"boolean"},"server_id":{"description":"Server identity hash","type":"string"},"server_name":{"description":"Human-readable server name","type":"string"},"timestamp":{"description":"When the call was made","type":"string"},"tool_name":{"description":"Tool name (without server prefix)","type":"string"}},"type":"object"},"contracts.UpdateInfo":{"description":"Update information (if available)","properties":{"available":{"description":"Whether an update is available","type":"boolean"},"behind_summary":{"description":"Spec 079 FR-002 — how far behind the running build is. All four are\nadditive (FR-021) and absent when the delta could not be resolved, in\nwhich case every surface renders its pre-delta wording.","type":"string"},"check_error":{"description":"Error message if update check failed","type":"string"},"checked_at":{"description":"When the update check was performed","type":"string"},"install_channel":{"description":"Detected install channel (homebrew, dmg, deb, rpm, docker, go-install, windows-installer, tarball, unknown) — Spec 079 FR-008","type":"string"},"is_prerelease":{"description":"Whether the latest version is a prerelease","type":"boolean"},"latest_version":{"description":"Latest version available (e.g., \"v1.2.3\")","type":"string"},"nudges_suppressed":{"description":"UI surfaces must stay quiet (CI / non-interactive context); machine-readable fields still report the facts — Spec 079 FR-019","type":"boolean"},"release_url":{"description":"URL to the release page","type":"string"},"releases_behind":{"description":"Releases on the offered channel between the running and offered versions","type":"integer"},"releases_behind_saturated":{"description":"ReleasesBehind is a lower bound: the running build predates the scanned release window","type":"boolean"},"update_command":{"description":"One-line update command for the channel; only set when an update is available and the channel has one — Spec 079 FR-009","type":"string"},"weeks_behind":{"description":"Whole weeks between the two releases' publish dates; 0 is a real value, absent means unknown","type":"integer"}},"type":"object"},"contracts.UpdatePolicy":{"description":"UpdatePolicy is the effective, hot-reloadable update policy (Spec 092\nFR-015). Always present: the ` + "`" + `update` + "`" + ` object above is omitted both when\nupdate checking is disabled AND when no check has produced a result\nyet, so its absence cannot tell a client whether it is allowed to run\nits own (e.g. Sparkle feed) check. This field states the answer.","properties":{"channel":{"description":"Channel is the tracked release channel: \"stable\" or \"rc\".","type":"string"},"enabled":{"description":"Enabled is the effective automatic-check kill switch: update_check.enabled\nwith MCPPROXY_DISABLE_AUTO_UPDATE=true winning over it. A user-initiated\n\"Check for Updates\" stays available regardless.","type":"boolean"},"nudges_suppressed":{"description":"NudgesSuppressed asks UI surfaces to stay quiet (CI / non-interactive)\nwhile machine-readable fields keep reporting the facts.","type":"boolean"}},"type":"object"},"contracts.UpstreamError":{"properties":{"error_message":{"type":"string"},"server_name":{"type":"string"},"timestamp":{"type":"string"}},"type":"object"},"contracts.UsageAggregateResponse":{"properties":{"freshness_ms":{"description":"age of the underlying snapshot in ms","type":"integer"},"generated_at":{"type":"string"},"other":{"$ref":"#/components/schemas/contracts.UsageOtherBucket"},"timeline":{"items":{"$ref":"#/components/schemas/contracts.UsageTimeBucket"},"type":"array","uniqueItems":false},"token_source":{"description":"\"bytes\" (size-based proxy, FR-006)","type":"string"},"tokens_saved":{"description":"echoed from ServerTokenMetrics (FR-007)","type":"integer"},"tokens_saved_percentage":{"type":"number"},"tools":{"items":{"$ref":"#/components/schemas/contracts.UsageToolStat"},"type":"array","uniqueItems":false},"total_calls":{"description":"TotalCalls and TotalErrors are the headline counts for the window: the sum\nof the timeline this same response carries, so the tiles and the histogram\nunder them cannot disagree. They are NOT the sum of Tools — that list is\nlifetime-cumulative, upstream-only and truncated to top-N, and summing it\nclient-side is what made the Usage tab print a third number for the same\n24 hours (audit finding F1, #1046). The population is\nstorage.CountsAsCall, shared with ActivitySummaryResponse.CallCount.\n\nTwo bounds on how exactly this matches the Activity Log's own count.\nBoth are bounded and disclosed, unlike the population mismatch they\nreplace, which was unbounded and silent:\n\n - Window granularity is the timeline's: whole hour buckets, so the span\n is the requested window rounded up to a bucket edge.\n - This response is served from a snapshot behind a short read cache\n (observability.usage_cache_ttl, 5s by default) so the endpoint never\n scans the activity log per request, while the summary endpoint counts\n live. Calls that land inside that window appear on the Activity Log\n first. FreshnessMs and GeneratedAt say how old the figures are, and\n the Usage tab prints it (\"Updated 3s ago\").","type":"integer"},"total_errors":{"type":"integer"},"window":{"type":"string"}},"type":"object"},"contracts.UsageOtherBucket":{"description":"present only when the list was truncated to top-N","properties":{"calls":{"type":"integer"},"tools_folded":{"type":"integer"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.UsageTimeBucket":{"properties":{"calls":{"type":"integer"},"errors":{"type":"integer"},"start":{"type":"string"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.UsageToolStat":{"properties":{"avg_req_bytes":{"description":"null when no sized request calls","type":"integer"},"avg_resp_bytes":{"description":"null when sized_calls == 0 (only legacy 0-byte calls)","type":"integer"},"blocked":{"type":"integer"},"calls":{"type":"integer"},"error_rate":{"type":"number"},"errors":{"type":"integer"},"last_used":{"type":"string"},"p50_exceeds":{"type":"boolean"},"p50_ms":{"description":"P50Ms and P95Ms are read off a fixed latency histogram, so they are BUCKET\nBOUNDS, not measured durations: the true percentile is at or below the\nvalue, and a client must render it as a bound (\"≤ 5 ms\"). P50Exceeds /\nP95Exceeds flip that reading for the unbounded overflow bucket, where the\nvalue is the last bound and the truth is above it (\"\u003e 10 s\").","type":"integer"},"p95_exceeds":{"type":"boolean"},"p95_ms":{"type":"integer"},"rejected":{"description":"spec 093: shed by a concurrency limit; never executed, so excluded from calls/latency","type":"integer"},"server":{"type":"string"},"sized_calls":{"description":"calls with known response size (basis for avg_resp_bytes)","type":"integer"},"tool":{"type":"string"},"total_req_bytes":{"type":"integer"},"total_resp_bytes":{"type":"integer"}},"type":"object"},"contracts.ValidateConfigResponse":{"properties":{"errors":{"items":{"$ref":"#/components/schemas/contracts.ValidationError"},"type":"array","uniqueItems":false},"valid":{"type":"boolean"}},"type":"object"},"contracts.ValidationError":{"properties":{"field":{"type":"string"},"message":{"type":"string"}},"type":"object"},"data":{"properties":{"data":{"$ref":"#/components/schemas/contracts.InfoResponse"}},"type":"object"},"httpapi.AddServerRequest":{"properties":{"args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"auto_approve_tool_changes":{"description":"AutoApproveToolChanges is the per-server intent to auto-approve\nnew/changed tools past the trust baseline (MCP-2930). Tri-state *bool:\na nil pointer means \"leave unchanged\" on PATCH; a present value\n(including false) is applied. Mirrors config.ServerConfig's *bool\nsemantics — do NOT collapse to a plain bool, or an omitted field would\nsilently reset a previously-set value.","type":"boolean"},"command":{"type":"string"},"enabled":{"type":"boolean"},"env":{"additionalProperties":{"type":"string"},"type":"object"},"expose_prompts":{"description":"ExposePrompts is the per-server override for prompt aggregation (F9):\nwhether this server's advertised MCP prompts are merged into mcpproxy's\nprompts/list. Tri-state *bool mirroring config.ServerConfig.ExposePrompts —\na nil pointer means \"leave unchanged\" on PATCH (and \"inherit the default\naggregate behavior\" on create); a present value (including false) is applied.","type":"boolean"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"init_timeout":{"description":"InitTimeout is the per-server MCP ` + "`" + `initialize` + "`" + ` handshake deadline override\n(MCP-3322 / GH #760), serialized as a duration string (e.g. \"120s\"). A nil\npointer means \"leave unchanged\" on PATCH; a present value is applied.\nMirrors config.ServerConfig.InitTimeout's *Duration tri-state.","type":"string"},"isolation":{"$ref":"#/components/schemas/httpapi.IsolationRequest"},"max_concurrent_requests":{"description":"MaxConcurrentRequests / QueueSize / QueueTimeout are the per-server\nconcurrency overrides (spec 093 / GH #955, FR-020 scope (c)). Each is\ntri-state: a nil pointer means \"leave unchanged\" on PATCH and \"inherit\nserver_concurrency_defaults\" on create; an explicit 0 disables that\nsetting for this server; a positive value overrides it. Do NOT collapse\nthem to plain values — an omitted field would then silently reset a\nconfigured limit.","type":"integer"},"name":{"type":"string"},"protocol":{"type":"string"},"quarantined":{"type":"boolean"},"queue_size":{"type":"integer"},"queue_timeout":{"type":"string"},"reconnect_on_use":{"type":"boolean"},"trust_mode":{"description":"TrustMode is the per-server trust tier (spec 086): \"auto\", \"scan\", or\n\"manual\". Empty means \"leave unchanged\" on PATCH (and inherit the migrated\ndefault on create). A non-empty value is applied to ServerConfig.TrustMode\nand resolved by EffectiveTrustMode (an unrecognized value fails closed to\nmanual). This is the REST seam for changing the trust tier via\nPOST/PATCH /api/v1/servers.","type":"string"},"url":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.CanonicalConfigPath":{"properties":{"description":{"description":"Brief description","type":"string"},"exists":{"description":"Whether the file exists","type":"boolean"},"format":{"description":"Format identifier (e.g., \"claude_desktop\")","type":"string"},"name":{"description":"Display name (e.g., \"Claude Desktop\")","type":"string"},"os":{"description":"Operating system (darwin, windows, linux)","type":"string"},"path":{"description":"Full path to the config file","type":"string"}},"type":"object"},"httpapi.CanonicalConfigPathsResponse":{"properties":{"os":{"description":"Current operating system","type":"string"},"paths":{"description":"List of canonical config paths","items":{"$ref":"#/components/schemas/httpapi.CanonicalConfigPath"},"type":"array","uniqueItems":false}},"type":"object"},"httpapi.ConnectConflictResponse":{"properties":{"action":{"description":"already_exists | precondition_failed","type":"string"},"data":{"$ref":"#/components/schemas/connect.ConnectResult"},"error":{"description":"Human-readable message","type":"string"},"success":{"description":"Always false","type":"boolean"}},"type":"object"},"httpapi.ConnectRequest":{"properties":{"force":{"description":"Overwrite existing entry","type":"boolean"},"precondition_token":{"description":"PreconditionToken is the opaque token from the preview this write was\nconfirmed against (Spec 091 FR-005). When present, the core rechecks it\nat write time and responds 409 with action \"precondition_failed\" —\nwriting nothing — if the config or the entry MCPProxy would write has\ndrifted since; the caller then re-previews instead of retrying. Absent\nmeans exactly the pre-091 behavior. A replace-classified flow sends this\nTOGETHER with force=true: the token, not the absence of force, is the\noverwrite safety.","type":"string"},"server_name":{"description":"Defaults to \"mcpproxy\"","type":"string"}},"type":"object"},"httpapi.ImportFromPathRequest":{"properties":{"format":{"description":"Optional format hint","type":"string"},"path":{"description":"File path to import from","type":"string"},"rename":{"additionalProperties":{"type":"string"},"description":"Rename maps a server name → new name. Applied after parsing so the\ncaller can disambiguate cross-source name collisions (Spec 046 v2 —\ne.g. \"mcpproxy\" → \"mcpproxy_claude_code\"). Keys are matched against\neither the raw source name (OriginalName) or the sanitized name shown\nin the preview (Server.Name); these differ for names that need\nsanitizing (e.g. \"Figma Desktop\" → \"Figma_Desktop\"). 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A nil\npointer means \"do not touch isolation config\". A present object is\napplied field-by-field ON TOP of the persisted overrides, so omitting a\nfield leaves it alone; clear an individual override by sending it\nexplicitly (` + "`" + `\"enabled\": null` + "`" + `, ` + "`" + `\"image\": \"\"` + "`" + `).","properties":{"enabled":{"description":"Enabled exists ONLY to detect and reject an echoed-back read. It is the\neffective state on the read surface and is never writable; see validate().","type":"boolean"},"enabled_override":{"description":"EnabledOverride is the tri-state per-server override — the RAW value, the\nsame one reads return as ` + "`" + `enabled_override` + "`" + `. It has THREE meaningful wire\nstates, and collapsing them is what silently un-isolated servers\n(GH #1142):\n - absent → leave the persisted override untouched\n - null → clear the override, back to inheriting the global\n - true / false → set an explicit opt-in / opt-out","type":"boolean"},"extra_args":{"items":{"type":"string"},"type":"array","uniqueItems":false},"image":{"type":"string"},"mode_override":{"description":"ModeOverride sets ` + "`" + `isolation.mode` + "`" + ` (\"docker\" | \"sandbox\" | \"none\").\nnil leaves the persisted value alone; an empty string clears it. An\nunrecognized value is rejected with a 400 rather than persisted.","type":"string"},"network_mode":{"type":"string"},"working_dir":{"type":"string"}},"type":"object"},"httpapi.OnboardingMarkRequest":{"properties":{"connect_step_status":{"description":"ConnectStepStatus is one of: \"\", \"completed\", \"skipped\". Empty\npreserves the existing value. 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Served from an in-memory snapshot — never a per-request full-log scan. Per-tool metrics are lifetime-cumulative; ` + "`" + `window` + "`" + ` scopes the timeline and filters the tool list to tools active within the span.","parameters":[{"description":"Time window for timeline + tool-list membership","in":"query","name":"window","schema":{"enum":["24h","7d","all"],"type":"string"}},{"description":"Filter to one server","in":"query","name":"server","schema":{"type":"string"}},{"description":"Filter to one tool","in":"query","name":"tool","schema":{"type":"string"}},{"description":"Filter to tools with activity of this status","in":"query","name":"status","schema":{"enum":["success","error","blocked","rejected"],"type":"string"}},{"description":"Top-N tools by sort key; remainder folded into 'other' (default 20)","in":"query","name":"top","schema":{"type":"integer"}},{"description":"Ranking key for the per-tool list","in":"query","name":"sort","schema":{"enum":["calls","resp_bytes","error_rate","p95"],"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"type":"object"}}}},"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"OK"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Bad Request"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Unauthorized"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"summary":"Get usage statistics aggregate","tags":["Activity"]}},"/api/v1/activity/{id}":{"get":{"description":"Returns full details for a single activity record","parameters":[{"description":"Activity record ID (ULID)","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"type":"object"}}}},"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"OK"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Unauthorized"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Not Found"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Internal Server Error"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"summary":"Get activity record details","tags":["Activity"]}},"/api/v1/annotations/coverage":{"get":{"description":"Reports how many upstream tools have MCP annotations vs don't, broken down by server","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Annotation coverage report"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get annotation coverage report","tags":["annotations"]}},"/api/v1/code/scripts":{"get":{"description":"List the stored scripts available to the code_execution tool. Scripts are ` + "`" + `\u003cname\u003e.js` + "`" + ` / ` + "`" + `\u003cname\u003e.ts` + "`" + ` files in the ` + "`" + `scripts/` + "`" + ` directory next to the active configuration file. Entries are advisory: ` + "`" + `ok` + "`" + ` scripts are invocable, ` + "`" + `ambiguous` + "`" + ` names have both extensions, and ` + "`" + `invalid` + "`" + ` ones report why (empty, oversized, unreadable, non-regular). Read-only — there is no write surface for stored scripts.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Stored scripts and the directory they were read from"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List stored code-execution scripts","tags":["code"]}},"/api/v1/config":{"get":{"description":"Retrieves the current MCPProxy configuration including all server definitions, global settings, and runtime parameters","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetConfigResponse"}}},"description":"Configuration retrieved successfully"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read the configuration document"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to get configuration"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get current configuration","tags":["config"]},"patch":{"description":"Deep-merges only the fields present in the request body onto the live in-memory configuration and routes the result through the existing apply pipeline (validation, change detection, disk persistence, hot-reload). Fields the client omits — including masked secrets such as ` + "`" + `api_key` + "`" + ` and secret request headers — are preserved verbatim. Nested objects are merged recursively; arrays and scalars replace wholesale.","requestBody":{"content":{"application/json":{"schema":{"type":"object"}}},"description":"Partial configuration with only the fields to change","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ConfigApplyResult"}}},"description":"Configuration patch applied (inspect validation_errors for rejected values)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload or empty patch"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot mutate configuration)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to read or apply configuration"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Partially update configuration","tags":["config"]}},"/api/v1/config/apply":{"post":{"description":"Applies a new MCPProxy configuration. 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Persists to disk via the existing config writer — the file watcher then hot-reloads the change. Returns the new state and whether a restart is required for existing connections to pick it up.","requestBody":{"content":{"application/json":{"schema":{"properties":{"enabled":{"type":"boolean"}},"type":"object"}}},"description":"New isolation state","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ConfigApplyResult"}}},"description":"Isolation toggle applied"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot mutate configuration)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to apply configuration"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Toggle global Docker isolation","tags":["config"]}},"/api/v1/config/validate":{"post":{"description":"Validates a provided MCPProxy configuration without applying it. Checks for syntax errors, invalid server definitions, conflicting settings, and other configuration issues.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/config.Config"}}},"description":"Configuration to validate","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ValidateConfigResponse"}}},"description":"Configuration validation result"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid JSON payload"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Validation failed"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Validate configuration","tags":["config"]}},"/api/v1/connect":{"get":{"description":"Returns the connection status for all known MCP client applications.\nEach entry indicates whether the client config file exists and whether\nMCPProxy is currently registered in it.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"List of ClientStatus objects"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List client connection status","tags":["connect"]}},"/api/v1/connect/{client}":{"delete":{"description":"Remove the MCPProxy entry from the specified client's configuration file.\nCreates a backup of the existing config before modifying.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.ConnectRequest"}}},"description":"Optional parameters (server_name)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectResult"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client or entry not found"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Disconnect MCPProxy from a client","tags":["connect"]},"get":{"description":"Resolves one client's status by reading its config file on demand.\nThis is the only Connect endpoint that opens a client config file, so\non macOS it is the sole place an App-Data privacy prompt may legitimately\nappear (scoped to this user action). Resolves access_state to\naccessible|absent|denied|malformed and populates remediation when denied.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ClientStatus"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get a single client's connection status (on-demand)","tags":["connect"]},"post":{"description":"Register MCPProxy as an MCP server in the specified client's configuration file.\nCreates a backup of the existing config before modifying.\nOptionally accepts precondition_token from a preview (Spec 091): when supplied,\nthe core rechecks the raw pre-write state and the entry it would write, and\nrefuses a drifted write with 409 before taking any backup. The 409 body's\naction discriminates the two conflict kinds: \"precondition_failed\" (stale\npreview — re-preview, do not retry) vs \"already_exists\" (entry present — pass\nforce=true). force=true never rescues a stale token.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.ConnectRequest"}}},"description":"Optional connection parameters (server_name, force, precondition_token)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectResult"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.ConnectConflictResponse"}}},"description":"Conflict: action=already_exists (use force=true) or action=precondition_failed (preview is stale; re-preview)"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Connect MCPProxy to a client","tags":["connect"]}},"/api/v1/connect/{client}/preview":{"get":{"description":"Returns the exact entry a subsequent connect would add to the client's\nconfig — target path, server key, entry name, and entry contents — WITHOUT\nmodifying the file or creating a backup (Spec 078 US1). The embedded API key\nis masked in the payload; contains_api_key flags that a credential is written.\nentry_exists distinguishes a create from an overwrite of a same-named entry.\nReads the config on demand to classify create-vs-overwrite, so on macOS this\nmay raise an App-Data privacy prompt; a denial returns 403 + remediation.\nSpec 091 adds three fields: existing_entry_summary (present only when\nentry_exists — a sanitized, non-secret projection of the entry being replaced:\nits name, type, endpoint with query/userinfo stripped, command, and header and\nenv NAMES, never values); precondition_token (always present — an opaque keyed\ndigest of the raw pre-write state and the pending entry, echoed back on POST\nconnect to detect drift); and connect_refusal (present when the write would\nrefuse regardless of intent, e.g. a non-create-capable client with no config —\ntreat its presence as \"Connect unavailable\").","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}},{"description":"Entry name to preview (defaults to mcpproxy); mirror the value passed to POST connect","in":"query","name":"server_name","schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectPreview"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Preview the change a connect would make (no write)","tags":["connect"]}},"/api/v1/connect/{client}/undo":{"post":{"description":"Reverts the connect that produced the named backup (Spec 078 US3):\nrestores the client config byte-for-byte from that backup, or — when\nbackup_name is empty because the connect created the file — deletes the\ncreated file. backup_name is the bare filename of the backup the connect\nreturned (never a path); undo resolves the full path server-side inside\nthe client's own config directory, so a client value cannot escape it.\nRefuses with 409 when the config changed since the connect (undo never\nclobbers later edits; use DELETE /connect/{client} for a surgical entry\nremoval instead). Takes its own safety backup first; its path is returned\nas backup_path in the result.","parameters":[{"description":"Client ID (claude-code, claude-desktop, cursor, windsurf, vscode, codex, gemini, opencode)","in":"path","name":"client","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.UndoConnectRequest"}}},"description":"Undo parameters (server_name, backup_name = the bare filename of the backup the preceding connect returned)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"ConnectResult (action restored|deleted)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request (e.g. backup_name is a path, or not a backup of this client's config)"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Permission denied (macOS App-Data block)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown client or backup no longer exists"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Config changed since connect; undo refused"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Undo a connect, restoring the pre-connect config","tags":["connect"]}},"/api/v1/diagnostics":{"get":{"description":"Get comprehensive health diagnostics including upstream errors, OAuth requirements, missing secrets, and Docker status","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.Diagnostics"}}},"description":"Health diagnostics"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get health diagnostics","tags":["diagnostics"]}},"/api/v1/docker/status":{"get":{"description":"Retrieve current Docker availability and recovery status","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Docker status information"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get Docker status","tags":["docker"]}},"/api/v1/doctor":{"get":{"description":"Get comprehensive health diagnostics including upstream errors, OAuth requirements, missing secrets, and Docker status","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.Diagnostics"}}},"description":"Health diagnostics"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get health diagnostics","tags":["diagnostics"]}},"/api/v1/feedback":{"post":{"description":"Submit a bug report, feature request, or general feedback","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/telemetry.FeedbackRequest"}}},"description":"Feedback request","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/telemetry.FeedbackResponse"}}},"description":"OK"},"400":{"content":{"application/json":{"schema":{"additionalProperties":{"type":"string"},"type":"object"}}},"description":"Bad Request"},"429":{"content":{"application/json":{"schema":{"additionalProperties":{"type":"string"},"type":"object"}}},"description":"Too Many Requests"},"500":{"content":{"application/json":{"schema":{"additionalProperties":{"type":"string"},"type":"object"}}},"description":"Internal Server Error"}},"security":[{"ApiKeyAuth":[]}],"summary":"Submit feedback","tags":["feedback"]}},"/api/v1/index/search":{"get":{"description":"Search across all upstream MCP server tools using BM25 keyword search","parameters":[{"description":"Search query","in":"query","name":"q","required":true,"schema":{"type":"string"}},{"description":"Maximum number of results","in":"query","name":"limit","schema":{"default":10,"maximum":100,"type":"integer"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SearchToolsResponse"}}},"description":"Search results"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request (missing query parameter)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Search for tools","tags":["tools"]}},"/api/v1/info":{"get":{"description":"Get essential server metadata including version, web UI URL, endpoint addresses, and update availability\nweb_ui_url carries the ?apikey= credential ONLY for an authenticated admin; a scoped agent token receives the bare URL\nThis endpoint is designed for tray-core communication and version checking\nUse refresh=true query parameter to force an immediate update check against GitHub\nThe launched_by field reports durable launch provenance (\"tray\", \"installer\", or \"\" for user-launched/unknown)","parameters":[{"description":"Force immediate update check against GitHub","in":"query","name":"refresh","schema":{"type":"boolean"}}],"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"Server information with optional update info"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get server information","tags":["status"]}},"/api/v1/onboarding/mark":{"post":{"description":"Updates wizard engagement and per-step status. Once engaged is\ntrue, the wizard does not auto-show again, even if state regresses.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.OnboardingMarkRequest"}}},"description":"Mark request","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Updated OnboardingStateResponse"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read onboarding state"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Mark onboarding wizard state (Spec 046)","tags":["onboarding"]}},"/api/v1/onboarding/state":{"get":{"description":"Returns the wizard engagement record alongside live predicates\n(whether any client is connected, whether any server is configured),\nplus a derived ShouldShowWizard flag the frontend can rely on.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"OnboardingStateResponse"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read onboarding state"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get onboarding wizard state and predicates (Spec 046)","tags":["onboarding"]}},"/api/v1/preflight":{"post":{"description":"Deterministic, side-effect-free availability check for a caller-supplied list of tool IDs (Spec 098). Performs zero upstream calls and mutates no runtime state. HTTP status reports whether the CHECK executed: a fully blocked set is still 200, with the availability verdict in the body. Every executed preflight writes an activity record before the response is returned.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.PreflightRequest"}}},"description":"Tool IDs (1-100 before dedup), optional profile, annotation policy filters and wait budget","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/data"}],"properties":{"data":{"type":"object"},"error":{"type":"string"},"request_id":{"type":"string"},"success":{"type":"boolean"}},"type":"object"}}},"description":"Preflight verdict and per-tool results"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Validation error (malformed, oversized, doubled or unknown-field body; empty or oversized tool list; conflicting duplicate pins; unknown profile; wait_ms out of range)"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Missing or invalid credentials"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.APIResponse"}}},"description":"Runtime unavailable, evaluator infrastructure read failure, or the activity record could not be persisted"}},"security":[{"ApiKeyHeader":[]},{"ApiKeyQuery":[]}],"summary":"Preflight required tools","tags":["tools"]}},"/api/v1/profiles":{"get":{"description":"List all configured profiles with their effective servers and indexed tool count (Profiles v2). A profile scopes tool discovery and calls to a named subset of upstream servers.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Profile list"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Configuration unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List configured profiles","tags":["profiles"]}},"/api/v1/profiles/active":{"get":{"description":"Get the server-level default active profile used by UI surfaces (Web UI / tray). Empty string means \"all servers\". Note: within a live MCP session, the set_profile tool selection takes precedence over this default.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Active profile"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get the default active profile","tags":["profiles"]},"put":{"description":"Set the server-level default active profile for UI surfaces. The slug must match a configured profile; pass an empty string to clear. This does not affect live MCP sessions, which use the set_profile tool.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.SetActiveProfileRequest"}}},"description":"Profile slug to activate (empty clears)","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Active profile updated"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid request body"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot change the active profile)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unknown profile"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Set the default active profile","tags":["profiles"]}},"/api/v1/registries":{"get":{"description":"Retrieves list of all MCP server registries that can be browsed for discovering and installing new upstream servers. Includes registry metadata, server counts, and API endpoints.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetRegistriesResponse"}}},"description":"Registries retrieved successfully"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to list registries"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List available MCP server registries","tags":["registries"]},"post":{"description":"Adds a generic modelcontextprotocol/registry v0.1 https endpoint as a custom registry (MCP-866). The source is always tagged custom/unverified, so every server discovered through it lands quarantined and can never skip quarantine.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.AddRegistrySourceRequest"}}},"description":"Registry source (https url + optional protocol/id/name)","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Registry source added"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"invalid_registry_url"},"403":{"content":{"application/json":{"schema":{"oneOf":[{"$ref":"#/components/schemas/contracts.ErrorResponse"},{"$ref":"#/components/schemas/contracts.ErrorResponse"}]}}},"description":"Forbidden (agent tokens cannot mutate registries)"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_shadows_builtin | duplicate_registry"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Add a user-supplied registry source","tags":["registries"]}},"/api/v1/registries/{id}":{"delete":{"description":"Removes a custom/unverified registry previously added via add-source (MCP-1057). Built-in registries are refused with registry_shadows_builtin; an unknown id yields registry_not_found. The change is persisted copy-on-write.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Registry source removed"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID is required"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registries_locked"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_not_found"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_shadows_builtin"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Remove a user-added custom registry source","tags":["registries"]},"put":{"description":"Updates a custom registry previously added via add-source (MCP-1072): name, url, servers-url. Empty fields are left unchanged. Built-in registries are refused with registry_shadows_builtin; an unknown id yields registry_not_found; a non-https url yields invalid_registry_url. The change is persisted copy-on-write.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.EditRegistrySourceRequest"}}},"description":"Fields to update (name/url/servers_url; empty = unchanged)","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Registry source updated"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID is required | invalid_registry_url"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registries_locked"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_not_found"},"409":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_shadows_builtin"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Edit a user-added custom registry source","tags":["registries"]}},"/api/v1/registries/{id}/refresh":{"post":{"description":"Invalidates the cached server lists for a registry so the next search re-fetches fresh data from the source (spec 070 FR-007). Returns how many cache entries were dropped.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.RefreshRegistryResponse"}}},"description":"Registry cache refreshed"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID is required"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to refresh registry cache"}},"summary":"Refresh a registry's cached server list","tags":["registries"]}},"/api/v1/registries/{id}/servers":{"get":{"description":"Searches for MCP servers within a specific registry by keyword or tag. Returns server metadata including installation commands, source code URLs, and npm package information for easy discovery and installation.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}},{"description":"Search query keyword","in":"query","name":"q","schema":{"type":"string"}},{"description":"Filter by tag","in":"query","name":"tag","schema":{"type":"string"}},{"description":"Maximum number of results (default 10)","in":"query","name":"limit","schema":{"type":"integer"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SearchRegistryServersResponse"}}},"description":"Servers retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Registry ID required"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to search servers"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Search MCP servers in a registry","tags":["registries"]}},"/api/v1/registries/{id}/servers/{serverId}/add":{"post":{"description":"Resolves a registry server reference server-side, re-derives a validated config, and persists it quarantined (spec 070 keystone). The client never sends a config blob — command/args/url and the quarantine flag are derived from the registry entry, not the request.","parameters":[{"description":"Registry ID","in":"path","name":"id","required":true,"schema":{"type":"string"}},{"description":"Server ID within the registry","in":"path","name":"serverId","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.AddFromRegistryRequest"}}},"description":"Optional overrides (name, env, enabled)"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Server added (quarantined)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"no_install_info | missing_required_input | duplicate_name"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Forbidden (agent tokens cannot add servers)"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"registry_not_found | server_not_found"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Add an upstream server from a registry reference","tags":["registries"]}},"/api/v1/routing":{"get":{"description":"Get the current routing mode and available MCP endpoints.\nrouting_mode is what /mcp is actually serving; pending_routing_mode carries a\nrestart-pending value persisted on disk (empty when there is none).\ntool_response_mode and direct_tool_response_mode report the two serialization axes, resolved.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Routing mode information"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get routing mode information","tags":["status"]}},"/api/v1/secrets":{"post":{"description":"Stores a secret value in the operating system's secure keyring. The secret can then be referenced in configuration using ${keyring:secret-name} syntax. 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Each session represents a connection from an MCP client to MCPProxy, tracking initialization time, tool calls, and connection status.","parameters":[{"description":"Maximum number of sessions to return (1-100, default 10)","in":"query","name":"limit","schema":{"type":"integer"}},{"description":"Number of sessions to skip for pagination (default 0)","in":"query","name":"offset","schema":{"type":"integer"}},{"description":"Filter by session status","in":"query","name":"status","schema":{"enum":["active","closed"],"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetSessionsResponse"}}},"description":"Sessions retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Invalid status filter"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read MCP session history"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to get sessions"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get active MCP sessions","tags":["sessions"]}},"/api/v1/sessions/{id}":{"get":{"description":"Retrieves detailed information about a specific MCP client session including initialization parameters, connection status, tool call count, and activity timestamps.","parameters":[{"description":"Session ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetSessionDetailResponse"}}},"description":"Session details retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Session ID required"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read MCP session history"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Session not found"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get MCP session details by ID","tags":["sessions"]}},"/api/v1/stats/tokens":{"get":{"description":"Retrieve token savings statistics across all servers and sessions","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Token statistics"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read deployment-wide token statistics"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get token savings statistics","tags":["stats"]}},"/api/v1/status":{"get":{"description":"Get comprehensive server status including running state, listen address, upstream statistics, and timestamp","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Server status information"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get server status","tags":["status"]}},"/api/v1/telemetry/payload":{"get":{"description":"Render the exact JSON heartbeat payload that mcpproxy would next send to the telemetry endpoint, without making a network call. Counters in the payload reflect the current in-memory state. Spec 042.","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Telemetry heartbeat payload"},"403":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Agent tokens cannot read the deployment telemetry payload"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Telemetry service unavailable"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Preview next telemetry heartbeat payload","tags":["telemetry"]}},"/api/v1/telemetry/update-failure":{"post":{"description":"Records one terminal update-session failure, identified only by its\nstage (appcast, download, install, other). The body carries no error\ntext, URL, or version — the stage is the only value transmitted.\nReturns 204 both when the occurrence was durably persisted and when\ntelemetry is inactive at event time (config opt-out, environment\nopt-out, CI, or dev build), in which case nothing is recorded.\nCallers cannot and need not distinguish the two.","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/httpapi.UpdateFailureRequest"}}},"description":"Update failure stage","required":true},"responses":{"204":{"description":"Accepted (recorded, or a deliberate no-op while telemetry is inactive)"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Malformed body, unknown field, trailing value, or stage outside the closed set"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Persistence failure"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Record a desktop auto-update failure occurrence (Spec 095)","tags":["telemetry"]}},"/api/v1/tool-calls":{"get":{"description":"Retrieves paginated tool call history across all upstream servers or filtered by session ID. Includes execution timestamps, arguments, results, and error information for debugging and auditing.","parameters":[{"description":"Maximum number of records to return (1-100, default 50)","in":"query","name":"limit","schema":{"type":"integer"}},{"description":"Number of records to skip for pagination (default 0)","in":"query","name":"offset","schema":{"type":"integer"}},{"description":"Filter tool calls by MCP session ID","in":"query","name":"session_id","schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetToolCallsResponse"}}},"description":"Tool calls retrieved successfully"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to get tool calls"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get tool call history","tags":["tool-calls"]}},"/api/v1/tool-calls/{id}":{"get":{"description":"Retrieves detailed information about a specific tool call execution including full request arguments, response data, execution time, and any errors encountered.","parameters":[{"description":"Tool call ID","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GetToolCallDetailResponse"}}},"description":"Tool call details retrieved successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Tool call ID required"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"404":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Tool call not found"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Get tool call details by ID","tags":["tool-calls"]}},"/api/v1/tool-calls/{id}/replay":{"post":{"description":"Re-executes a previous tool call with optional modified arguments. Useful for debugging and testing tool behavior with different inputs. Creates a new tool call record linked to the original.","parameters":[{"description":"Original tool call ID to replay","in":"path","name":"id","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ReplayToolCallRequest"}}},"description":"Optional modified arguments for replay"},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ReplayToolCallResponse"}}},"description":"Tool call replayed successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Tool call ID required or invalid JSON payload"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Unauthorized - missing or invalid API key"},"405":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Method not allowed"},"429":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Shed by a concurrency limit (Retry-After header carries the wait hint)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Failed to replay tool call"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Replay a tool call","tags":["tool-calls"]}},"/api/v1/tools":{"get":{"description":"Consolidated, read-only listing of all tools from every configured server (including disabled servers and disabled/config-denied tools), enriched with approval state and 30-day usage. Backs the global Tools page and the CLI global ` + "`" + `tools list` + "`" + ` (spec 050, issue #437).","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.GlobalToolsResponse"}}},"description":"All tools across all servers"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Could not enumerate servers"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"List every tool across all servers","tags":["tools"]}},"/api/v1/tools/call":{"post":{"description":"Execute a tool on an upstream MCP server (wrapper around MCP tool calls)","requestBody":{"content":{"application/json":{"schema":{"properties":{"arguments":{"type":"object"},"tool_name":{"type":"string"}},"type":"object"}}},"description":"Tool call request with tool name and arguments","required":true},"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.SuccessResponse"}}},"description":"Tool call result"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Bad request (invalid payload or missing tool name)"},"429":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Shed by a concurrency limit (Retry-After header carries the wait hint)"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contracts.ErrorResponse"}}},"description":"Internal server error or tool execution failure"}},"security":[{"ApiKeyAuth":[]},{"ApiKeyQuery":[]}],"summary":"Call a tool","tags":["tools"]}},"/healthz":{"get":{"description":"Get comprehensive health status including all component health (Kubernetes-compatible liveness probe)","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.HealthResponse"}}},"description":"Service is healthy"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.HealthResponse"}}},"description":"Service is unhealthy"}},"summary":"Get health status","tags":["health"]}},"/readyz":{"get":{"description":"Get readiness status including all component readiness checks (Kubernetes-compatible readiness probe)","responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.ReadinessResponse"}}},"description":"Service is ready"},"503":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/observability.ReadinessResponse"}}},"description":"Service is not ready"}},"summary":"Get readiness status","tags":["health"]}}}, diff --git a/oas/swagger.yaml b/oas/swagger.yaml index af7927f22..33b9a74c2 100644 --- a/oas/swagger.yaml +++ b/oas/swagger.yaml @@ -2854,6 +2854,12 @@ components: arguments: description: Tool arguments type: object + arguments_truncated: + description: |- + ArgumentsTruncated marks Arguments as a placeholder rather than the + arguments the tool was called with. Replaying such a record without + supplying arguments explicitly is refused. + type: boolean config_path: description: Active config file path type: string From 3d3af4e170bfba8c0d296fbb8553572e47079368 Mon Sep 17 00:00:00 2001 From: Algis Dumbris Date: Sat, 5 Sep 2026 05:54:43 +0300 Subject: [PATCH 3/5] docs(release): notice for the config.db bloat fix and its manual compaction step MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The release body is generated from commit messages and never reads CHANGELOG.md, so anything a user must ACT on has to go through .github/RELEASE_NOTICE.md. Two things qualify here. The #1173 storage fixes bound future growth but cannot shrink an existing file — BBolt does not return freed pages to the OS — so a user sitting on a 940MB config.db has to run 'mcpproxy db compact' themselves, with mcpproxy stopped, and then delete the backup that the default run keeps. Without that step they upgrade and see no improvement. And two config keys quietly changed meaning: activity_retention_days: 0 and activity_max_records: 0 used to fall through to internal defaults far smaller than the documented ones (7 days / 10000 records instead of 90 / 100000). That is a fix, but anyone who leaned on 0 to keep the log small needs to say what they meant. Related #1173, #1175, #1176 --- .github/RELEASE_NOTICE.md | 49 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 .github/RELEASE_NOTICE.md diff --git a/.github/RELEASE_NOTICE.md b/.github/RELEASE_NOTICE.md new file mode 100644 index 000000000..6c879b62d --- /dev/null +++ b/.github/RELEASE_NOTICE.md @@ -0,0 +1,49 @@ +## 📉 If your `config.db` has grown large, this release needs one manual step + +A user reported `~/.mcpproxy/config.db` reaching **940MB** ([#1173](https://github.com/smart-mcp-proxy/mcpproxy-go/issues/1173)). This release fixes both causes and adds a command to reclaim the space — but **the space is not reclaimed automatically**, because BBolt never returns freed pages to the operating system. + +### Check whether you are affected + +```bash +ls -lh ~/.mcpproxy/config.db +``` + +A few MB is normal. Hundreds of MB is not. + +### Reclaim the space + +Compaction needs exclusive access, so **stop mcpproxy first** (quit the tray app, or stop `mcpproxy serve`). Then: + +```bash +mcpproxy db stats # how much is reclaimable +mcpproxy db compact # rewrite the file +``` + +`db compact` keeps the pre-compaction database as `config.db.bak` by default. **That backup holds the old file, so nothing is freed on disk until you delete it.** The command says so in its output. Start mcpproxy, confirm your servers and history are intact, then: + +```bash +rm ~/.mcpproxy/config.db.bak +``` + +If you are already out of disk space, run `mcpproxy db compact --keep-backup=false` instead — it frees the space immediately, with no rollback. + +### What was wrong + +**Activity records were never truncated** ([#1173](https://github.com/smart-mcp-proxy/mcpproxy-go/issues/1173)) — `activity_max_response_size` was declared with a 64KB default and never read, so a single 10.75MB response was stored whole. + +**The per-server tool-call history was unbounded** ([#1176](https://github.com/smart-mcp-proxy/mcpproxy-go/issues/1176)) — no size cap, no count cap, no age prune, and nothing ever deleted a server's history, even after the server was removed from the config. This was ~432MB of that 940MB. Responses and arguments are now capped per record, each server keeps a bounded recent window, and removing a server drops its history with it. + +## ⚙️ Configuration changes worth knowing + +**An explicit `0` is no longer silently deleted** ([#1175](https://github.com/smart-mcp-proxy/mcpproxy-go/issues/1175)). `max_result_size_chars`, `activity_max_size_mb` and `observability.tracing.sample_rate` document `0` as a meaningful value ("disable"), but saving the config erased it and the field reverted to its default. If you set one of these to `0` and it kept coming back, that is why — it now persists. + +**`activity_retention_days: 0` and `activity_max_records: 0` changed meaning.** They previously fell through to much smaller internal defaults (7 days / 10,000 records) rather than the documented ones. Both now resolve to the documented defaults (90 days / 100,000 records). If you relied on `0` to keep the log small, set the value you actually want. + +**New settings**, both defaulting to what the fix applies anyway: + +| Setting | Default | Meaning | +|---|---|---| +| `tool_call_max_response_size` | `65536` | Cap on the response stored per tool-call record, in bytes | +| `tool_call_max_records_per_server` | `1000` | Tool calls retained per server | + +A record shortened for storage is marked `response_truncated` / `arguments_truncated`; the caller always received the full response, and the upstream server always received the full arguments. Replaying a call whose stored arguments were shortened is refused rather than re-sending the placeholder — pass arguments explicitly to replay it. From 16c76ea3309cef1bbdf060b00d70f069b26678f7 Mon Sep 17 00:00:00 2001 From: Algis Dumbris Date: Sat, 5 Sep 2026 06:02:21 +0300 Subject: [PATCH 4/5] fix(storage): size the truncation marker by measuring it, and fix lock ownership MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Second opencode review round, on the fixes from the first. THE TRUNCATION MARKER COULD EXCEED ITS OWN CAP. previewBytes budgeted the preview by RAW length against a fixed 512-byte envelope reserve, but the preview is JSON embedded in JSON: every quote and backslash is escaped a second time on the way in, so a quote-heavy payload roughly doubles. Measured: a 1024-byte cap produced a 1243-byte record, a 4096-byte cap produced 4308. The placeholder now halves its preview until the MARSHALLED object fits, and falls back to a bare {truncated, original_bytes} — about 45 bytes — for caps too small to hold the note. Estimating the encoded size from the raw size was the mistake; it now measures. The existing test passed through all of this because it used strings.Repeat("q") as filler, which escapes to nothing. It now uses quotes and backslashes and covers caps from 64 bytes up, and it reproduces the exact 1243/4308 figures when the fix is reverted. RELEASING THE COMPACTION LOCK COULD REMOVE SOMEONE ELSE'S. The release closure deleted the pathname unconditionally. Sequence: someone clears A's stale-looking lock by hand, B takes a fresh one, A finishes and deletes the pathname — which is now B's — and a third compaction starts alongside B. The lock file now carries a pid+timestamp token and release removes it only while it still contains that token. THE PRE-REPLACE CHECK NOW RUNS AS LATE AS POSSIBLE, after the backup rather than before it, so the window between "the source is unheld" and the rename is microseconds instead of spanning backup creation. It cannot be closed completely — the file must be closed for a rename to work on Windows, so no lock can span the rename — and that residual is now stated in the code rather than implied. Aborting there also cleans up the backup it had just made. Also recorded rather than fixed: the staleness check compares size and mtime, not a content hash, because hashing a multi-gigabyte file to guard a microsecond window would cost more than the operation it protects. An in-place write preserving both would slip past it — but making one requires an open handle, which is what the exclusive-open check refuses. Verified on a real instance: db stats reporting 1.3MB reclaimable, a second compaction refused by the lock with the remediation message, a real compaction taking 4.0MB to 2.0MB, the lock file cleaned up afterwards, and every record still readable through the API. Related #1176 --- cmd/mcpproxy/db_cmd.go | 58 ++++++++++---- cmd/mcpproxy/db_cmd_test.go | 34 ++++++++ internal/storage/tool_call_bounds.go | 97 +++++++++++++++-------- internal/storage/tool_call_bounds_test.go | 14 +++- 4 files changed, 151 insertions(+), 52 deletions(-) diff --git a/cmd/mcpproxy/db_cmd.go b/cmd/mcpproxy/db_cmd.go index 7d64eda3d..1201098ba 100644 --- a/cmd/mcpproxy/db_cmd.go +++ b/cmd/mcpproxy/db_cmd.go @@ -320,9 +320,26 @@ func acquireCompactLock(dir string) (release func(), err error) { } return nil, fmt.Errorf("failed to create compaction lock %s: %w", lockPath, err) } - _ = f.Close() - return func() { os.Remove(lockPath) }, nil + // Stamp the lock with this run's identity so release can tell OUR lock from + // a successor's. Without it: someone deletes A's stale-looking lock, B + // creates a fresh one, A finishes and removes the pathname — which is now + // B's lock — and a third compaction starts alongside B. + token := fmt.Sprintf("pid=%d\nstarted=%s\n", os.Getpid(), time.Now().UTC().Format(time.RFC3339Nano)) + _, writeErr := f.WriteString(token) + closeErr := f.Close() + if writeErr != nil || closeErr != nil { + os.Remove(lockPath) + return nil, fmt.Errorf("failed to write compaction lock %s: %w", lockPath, errors.Join(writeErr, closeErr)) + } + + return func() { + if current, rerr := os.ReadFile(lockPath); rerr == nil && string(current) != token { + // Not ours any more — leave it for whoever owns it now. + return + } + os.Remove(lockPath) + }, nil } func compactDatabase(srcPath string, opts compactOptions) (result *compactResult, err error) { @@ -435,20 +452,6 @@ func compactDatabase(srcPath string, opts compactOptions) (result *compactResult ReclaimedBytes: beforeBytes - afterInfo.Size(), } - // Nothing has held a lock on the source since src.Close() above, and - // compaction of a large database takes minutes. Re-check that the file we - // are about to replace is still the one we compacted, and that nobody has - // taken it, before doing anything destructive. - // - // Without this the swap is a data-loss race: a core that started during - // compaction (or a second `db compact`) ends up holding the OLD, now - // unlinked inode, and every write it makes afterwards vanishes when the - // rename lands. Aborting here is always safe — the original is untouched - // and the temp file is removed by the deferred cleanup. - if err := assertSourceUnchangedAndFree(srcPath, info); err != nil { - return nil, err - } - // The backup is a hard link, not a move: config.db therefore never stops // existing, and the rename below still replaces it in one step. if opts.KeepBackup { @@ -468,6 +471,24 @@ func compactDatabase(srcPath string, opts compactOptions) (result *compactResult res.BackupBytes = beforeBytes } + // Re-check as LATE as possible — after the backup, immediately before the + // rename. Nothing has held a lock on the source since src.Close() above, + // and compaction of a large database takes minutes; without this the swap + // is a data-loss race, because a core that started meanwhile ends up + // holding the OLD, now-unlinked inode and every write it makes vanishes. + // + // This narrows that window from the whole compaction to the few + // microseconds between the check and the rename. It cannot close it: the + // file must be CLOSED for a rename to work on Windows, so no lock can span + // the rename itself. The command's documented precondition remains "stop + // mcpproxy first", and this is the backstop for when someone did not. + if err := assertSourceUnchangedAndFree(srcPath, info); err != nil { + if res.BackupPath != "" { + os.Remove(res.BackupPath) + } + return nil, err + } + if err := os.Rename(tmpPath, srcPath); err != nil { // The backup was linked just above and is now meaningless — the // original is still in place, so leaving a .bak behind would only @@ -509,6 +530,11 @@ func assertSourceUnchangedAndFree(srcPath string, before os.FileInfo) error { if err != nil { return fmt.Errorf("database %s went away during compaction: %w", srcPath, err) } + // Size plus mtime, not a content hash: hashing a multi-gigabyte file to + // guard a microsecond window would cost more than the operation it + // protects. It therefore cannot see an in-place write that preserves both + // — but making such a write requires an open handle, which is exactly what + // the exclusive-open check below refuses. if now.Size() != before.Size() || !now.ModTime().Equal(before.ModTime()) { return fmt.Errorf( "database %s changed during compaction (something started using it); nothing was replaced — stop mcpproxy and retry", diff --git a/cmd/mcpproxy/db_cmd_test.go b/cmd/mcpproxy/db_cmd_test.go index 8028eb165..fffcd8c47 100644 --- a/cmd/mcpproxy/db_cmd_test.go +++ b/cmd/mcpproxy/db_cmd_test.go @@ -490,3 +490,37 @@ func TestCopyFileReplacesTheDestinationInsteadOfTruncatingIt(t *testing.T) { t.Fatalf("copyFile truncated a hard link to the live database: it is now %d bytes, was 8192", len(surviving)) } } + +// Releasing the lock must remove OUR lock, not whatever happens to sit at that +// path. A review found the sequence: someone deletes A's stale-looking lock, B +// creates a fresh one, A finishes and removes the pathname — which is now B's — +// and a third compaction starts alongside B. +func TestCompactLockReleaseDoesNotRemoveSomeoneElsesLock(t *testing.T) { + dir := t.TempDir() + lockPath := filepath.Join(dir, dbFileName+".compact.lock") + + releaseA, err := acquireCompactLock(dir) + if err != nil { + t.Fatalf("acquire A: %v", err) + } + + // A's lock is cleared by hand, and B takes a fresh one. + if err := os.Remove(lockPath); err != nil { + t.Fatal(err) + } + releaseB, err := acquireCompactLock(dir) + if err != nil { + t.Fatalf("acquire B: %v", err) + } + + releaseA() // must be a no-op: this lock is B's now + + if _, err := os.Stat(lockPath); err != nil { + t.Fatalf("A's release removed B's lock, so a third compaction could start: %v", err) + } + + releaseB() + if _, err := os.Stat(lockPath); !os.IsNotExist(err) { + t.Error("B's own release must remove B's lock") + } +} diff --git a/internal/storage/tool_call_bounds.go b/internal/storage/tool_call_bounds.go index 143d755a1..070473d19 100644 --- a/internal/storage/tool_call_bounds.go +++ b/internal/storage/tool_call_bounds.go @@ -29,11 +29,6 @@ const ( // say, 1KB. toolCallPreviewBytes = 2048 - // toolCallEnvelopeBytes reserves room for the placeholder's other fields - // (truncated, original_bytes, note and the JSON punctuation) so the whole - // object stays under the cap, not just its preview. - toolCallEnvelopeBytes = 512 - // serverIdentitiesBucket holds the ServerIdentity records that map a // server NAME to the SHA-256 id its tool-call bucket is keyed by. serverIdentitiesBucket = "server_identities" @@ -124,13 +119,9 @@ func boundToolCallResponse(record *ToolCallRecord, maxBytes int) *ToolCallRecord copied := *record bounded = &copied } - bounded.Response = map[string]interface{}{ - "truncated": true, - "original_bytes": len(encoded), - "preview": truncateUTF8(string(encoded), previewBytes(maxBytes)), - "note": "response omitted: exceeded tool_call_max_response_size. " + - "The full response was delivered to the caller; only this stored copy is shortened.", - } + bounded.Response = boundedPlaceholder(string(encoded), maxBytes, + "response omitted: exceeded tool_call_max_response_size. "+ + "The full response was delivered to the caller; only this stored copy is shortened.") bounded.ResponseTruncated = true bounded.ResponseBytes = int64(len(encoded)) return bounded @@ -152,32 +143,72 @@ func boundToolCallArguments(args map[string]interface{}, maxBytes int) map[strin if err != nil || len(encoded) <= maxBytes { return nil } - return map[string]interface{}{ - "truncated": true, - "original_bytes": len(encoded), - "preview": truncateUTF8(string(encoded), previewBytes(maxBytes)), - "note": "arguments omitted: exceeded tool_call_max_response_size. " + - "The full arguments were sent to the upstream server; only this stored copy is shortened.", - } + return boundedPlaceholder(string(encoded), maxBytes, + "arguments omitted: exceeded tool_call_max_response_size. "+ + "The full arguments were sent to the upstream server; only this stored copy is shortened.") } -// previewBytes is how much of the payload the placeholder may carry, given the -// cap the whole record has to fit inside. A truncation marker that is itself -// over the limit would defeat the point of configuring a small one. -func previewBytes(maxBytes int) int { - room := maxBytes - toolCallEnvelopeBytes - if room < 0 { - room = 0 +// boundedPlaceholder builds the replacement value for an oversized payload, +// guaranteeing that the MARSHALLED object fits inside maxBytes. +// +// It measures rather than estimates, because a raw byte budget is not a +// reliable proxy for the encoded size: the preview is itself JSON, so every +// quote and backslash in it is escaped again on the way in. A payload of +// quotes doubles, which is how a 512-byte preview budget produced a 1243-byte +// "truncated" record under a 1024-byte cap. +// +// The preview halves until the whole object fits. If even an empty preview is +// too big — a cap under ~230 bytes, far below anything useful — the preview +// and the note are dropped, leaving the bare {truncated, original_bytes} that +// keeps the record honest at ~45 bytes. +func boundedPlaceholder(encoded string, maxBytes int, note string) map[string]interface{} { + build := func(preview string, withNote bool) map[string]interface{} { + p := map[string]interface{}{ + "truncated": true, + "original_bytes": len(encoded), + } + if preview != "" { + p["preview"] = preview + truncationMarker + } + if withNote { + p["note"] = note + } + return p } - if room < toolCallPreviewBytes { - return room + + fits := func(p map[string]interface{}) bool { + encodedPlaceholder, err := json.Marshal(p) + return err == nil && len(encodedPlaceholder) <= maxBytes } - return toolCallPreviewBytes + + raw := truncateRuneSafe(encoded, toolCallPreviewBytes) + for { + if p := build(raw, true); fits(p) { + return p + } + if raw == "" { + break + } + raw = truncateRuneSafe(raw, len(raw)/2) + } + + if p := build("", true); fits(p) { + return p + } + return build("", false) } -// truncateUTF8 cuts s to at most maxBytes without splitting a rune, so the -// preview stays valid JSON text. -func truncateUTF8(s string, maxBytes int) string { +// truncationMarker is appended to a shortened preview so a reader can see the +// text was cut rather than being a short payload. +const truncationMarker = "...[truncated]" + +// truncateRuneSafe cuts s to at most maxBytes without splitting a rune. It adds +// no marker: callers that want one append it, so the marker's own length is +// visible to the size arithmetic instead of hiding inside this function. +func truncateRuneSafe(s string, maxBytes int) string { + if maxBytes <= 0 { + return "" + } if len(s) <= maxBytes { return s } @@ -185,7 +216,7 @@ func truncateUTF8(s string, maxBytes int) string { for cut > 0 && !utf8.RuneStart(s[cut]) { cut-- } - return s[:cut] + "...[truncated]" + return s[:cut] } // pruneToolCallBucket evicts the oldest records until at most maxRecords diff --git a/internal/storage/tool_call_bounds_test.go b/internal/storage/tool_call_bounds_test.go index a6ac7aa45..e5ca240a5 100644 --- a/internal/storage/tool_call_bounds_test.go +++ b/internal/storage/tool_call_bounds_test.go @@ -344,12 +344,20 @@ func TestTruncatedArgumentsAreFlaggedForReplay(t *testing.T) { // preview whatever the cap was, so configuring a small cap produced a // "truncated" record LARGER than the limit it was meant to enforce. func TestTruncationPlaceholderFitsInsideASmallCap(t *testing.T) { - for _, cap := range []int{256, 1024, 4096} { + // The filler is deliberately escape-heavy. An earlier version of this test + // used plain "q"s and passed while the invariant was broken: the preview is + // embedded as JSON inside JSON, so every quote and backslash is escaped a + // second time. A 512-byte preview budget produced a 1243-byte record under + // a 1024-byte cap; plain letters hide that entirely. + filler := strings.Repeat("\"\\", 250_000) + + for _, cap := range []int{64, 256, 1024, 4096, 65536} { mgr := newBoundsManager(t) mgr.SetToolCallLimits(cap, 0) - rec := bigToolCall("call-1", "srv", 500_000) - rec.Arguments = map[string]interface{}{"text": strings.Repeat("q", 500_000)} + rec := bigToolCall("call-1", "srv", 10) + rec.Response = map[string]interface{}{"text": filler} + rec.Arguments = map[string]interface{}{"text": filler} require.NoError(t, mgr.RecordToolCall(rec)) stored, err := mgr.GetServerToolCalls("srv", 10) From 6dc2df15f52635ae11f6b3f903c8b55b9931bcc4 Mon Sep 17 00:00:00 2001 From: Algis Dumbris Date: Sat, 5 Sep 2026 06:11:44 +0300 Subject: [PATCH 5/5] fix(test): stop TestPreReplaceCheckAbortsWhenTheDatabaseIsHeld failing on Windows MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The test stat'ed the database BEFORE opening the holder. Opening a bbolt database can write to it — a freelist flush, which is what happens on Windows — so by the time the pre-replace check ran, the file had legitimately changed and the check aborted on its staleness half rather than its lock half. Both halves abort the swap, which is the property that matters, but this case exists to pin the LOCK detection specifically, and it asserted the error type to prove it. Stat after the holder is open, so the file looks unchanged and only the lock check can fire. The Windows failure also cancelled both macOS jobs through the matrix, which is why three builds went red for one cause. --- cmd/mcpproxy/db_cmd_test.go | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/cmd/mcpproxy/db_cmd_test.go b/cmd/mcpproxy/db_cmd_test.go index fffcd8c47..58e8252af 100644 --- a/cmd/mcpproxy/db_cmd_test.go +++ b/cmd/mcpproxy/db_cmd_test.go @@ -370,10 +370,6 @@ func TestCompactDatabaseReportsWhatTheBackupStillCosts(t *testing.T) { func TestPreReplaceCheckAbortsWhenTheDatabaseIsHeld(t *testing.T) { dir := t.TempDir() dbPath := seedDB(t, dir) - info, err := os.Stat(dbPath) - if err != nil { - t.Fatal(err) - } held, err := bbolt.Open(dbPath, 0600, &bbolt.Options{Timeout: 2 * time.Second}) if err != nil { @@ -381,6 +377,16 @@ func TestPreReplaceCheckAbortsWhenTheDatabaseIsHeld(t *testing.T) { } defer held.Close() + // Stat AFTER the holder has opened it. Opening a bbolt database can write + // to it (a freelist flush on Windows, where this test first failed), which + // would trip the staleness half of the check and mask the half under test. + // Both halves abort the swap, which is what actually matters — but this + // case exists to pin the LOCK detection, so the file must look unchanged. + info, err := os.Stat(dbPath) + if err != nil { + t.Fatal(err) + } + err = assertSourceUnchangedAndFree(dbPath, info) if err == nil { t.Fatal("the pre-replace check passed while another process held the database")