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Drop the deprecated installer-checksum input - #758
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At a5765019, the revision main's coverage upload already pins, the shared uploader's committed cli-manifest.json is the trust anchor for the CodeScene CLI archive, and the action rejects a non-empty installer-checksum rather than ignoring it. The step still passed vars.CODESCENE_CLI_SHA256 into that input, so the upload fails the moment the repository variable holds anything. Remove the input. It is not renamed to archive-checksum: that input can only repeat the manifest's own digest, so a repository variable feeding it would add nothing and would break on every manifest bump. Add a workflow contract with four clauses: no workflow passes the input, none references the variable, every uploader reference is pinned to the one approved revision, and the refresh dispatch that maintained the variable in other repositories does not exist here.
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Summary
WalkthroughThe coverage workflow removes the deprecated CodeScene checksum input. New contract tests inspect all YAML workflows for deprecated references, approved uploader pinning, and absence of the checksum refresh workflow. ChangesCodeScene checksum contract
Priority: ⬇️ Low Change: Bug fix Merge Risk: 🔵 Low · up to The change is low risk, but the workflow contract should cover both supported extensions and follow the repository’s test conventions before merging. Caution Pre-merge checks failedPlease resolve all errors before merging. Addressing warnings is optional.
❌ Failed checks (1 error, 1 warning)
✅ Passed checks (13 passed)
Full details: Developer DocumentationExplanation The pull request adds a new workflow-contract testing requirement. The new Resolution Update Full details: Unit ArchitectureExplanation Refactor the new workflow contract's filesystem queries before merge. The changed module adds a query API, Resolution Use an explicit filesystem reader at the boundary. Accept the workflow directory as a parameter, validate that it is a directory, catch Remove the checksum from the flight, Comment |
Contributor
Reviewer's GuideRemoves the deprecated installer-checksum input that the pinned CodeScene uploader rejects, and adds hermetic workflow-contract tests covering the input, its former variable, the exact uploader pin, and the absence of the obsolete refresh workflow without changing upload behavior. Flow diagram for CodeScene uploader checksum contractflowchart TD
Workflow[coverage-main.yml] --> Upload[CodeScene coverage upload]
Upload --> Pin[upload-codescene-coverage pinned to a5765019]
Upload --> Manifest[Committed cli-manifest.json trust anchor]
Contract[codescene_uploader_checksum_test.py] --> Workflow
Contract --> Pin
Contract --> Refresh[No get-codescene-sha.yml]
Contract --> Reject[Reject deprecated installer-checksum and CODESCENE_CLI_SHA256]
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leynos
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September 21, 2026 12:07
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Actionable comments posted: 2
🤖 Prompt to fix review comments
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Inline comments:
In `@tests/workflow_contracts/codescene_uploader_checksum_test.py`:
- Around line 59-80: Move workflow_sources into
tests/workflow_contracts/conftest.py as a session-scoped fixture, preserving its
workflow discovery and empty-directory assertion, then inject it into all
consuming tests and remove the module-local helper. Combine the deprecated-input
and deprecated-variable checks into one parametrized test using named
pytest.param cases so failures remain individually identified, and update
test_every_uploader_reference_is_pinned_to_the_approved_revision to consume
workflow_sources.items().
- Around line 150-151: Update the refresh workflow absence assertion using the
REFRESH_WORKFLOW symbol so it checks both .yml and .yaml variants, matching
workflow_sources(). Represent the base workflow name without an extension,
collect any matching filenames, and assert that the collection is empty while
reporting all present files in the failure message.
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📒 Files selected for processing (2)
.github/workflows/coverage-main.ymltests/workflow_contracts/codescene_uploader_checksum_test.py
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Review of #758 found two ways its contract claimed more than it checked. Both were reproduced against the merged file first, so each fix is a response to a demonstrated gap rather than to an argument. ## The pin clause kept only the last reference per workflow `test_every_uploader_reference_is_pinned_to_the_approved_revision` collected matches into a dict keyed by workflow name. A workflow holding two uploader steps therefore kept only the last match, so a stale reference followed by an approved one satisfied a clause whose whole claim is "every reference". Each match is now retained as its own `(workflow, revision)` pair. Shown against the merged contract, with a second uploader step pinned to `0000000000000000000000000000000000000000` added to `coverage-main.yml`: ``` 4 passed ``` The same mutation against this branch: ``` AssertionError: every upload-codescene-coverage reference must be pinned to a5765019912a8ab6882b12db049c7cde635f3a85; found [('coverage-main.yml', '0000000000000000000000000000000000000000')] 1 failed, 3 passed ``` ## The absence clause checked one extension `test_the_checksum_refresh_workflow_is_absent` joined the literal `get-codescene-sha.yml`, so a `get-codescene-sha.yaml` passed it. That is narrower than it first looks, and the reason to fix it rather than argue it unreachable is precise: a real refresh workflow written as `.yaml` still fails the variable clause, because that clause reads both extensions and the real file names `CODESCENE_CLI_SHA256`. What slipped through is exactly the shape used to prove this clause, a placeholder of that name referencing nothing. The clause survived its own mutation under the other extension. Both extensions are now checked, from one `WORKFLOW_EXTENSIONS` list that the directory reader uses as well, so the two cannot drift apart. Shown against the merged contract, with a `.yaml` placeholder present: ``` 4 passed ``` Against this branch, with the same placeholder, and again with a `.yml` one: ``` AssertionError: ['get-codescene-sha.yaml'] maintains CODESCENE_CLI_SHA256 ... 1 failed, 3 passed AssertionError: ['get-codescene-sha.yml'] maintains CODESCENE_CLI_SHA256 ... 1 failed, 3 passed ``` ## What is not changed Neither defect made the contract wrong about this repository today: it has one uploader reference and no refresh workflow. Both made it weaker than its own docstring, which is the whole point of a contract whose acceptance evidence is that each clause fails alone under one mutation. A third review suggestion, to move `workflow_sources` into the directory's `conftest.py` and to parametrize the two token checks into one function, is declined and answered on #758. The four clauses are four functions so that a failure names the defect rather than a bundle, and that separability is the acceptance evidence for the change rather than a style preference. The reader is not shared setup either; it carries the emptiness check that stops every clause below it passing vacuously, and that guard belongs beside the assertions it guards rather than in scope for every module in the directory. ## Gates `make check-fmt`, `make test-workflow-contracts` (581 passed, 2 skipped), `make markdownlint`, `make nixie`, `make lint` and `make test`, run bare and sequentially, all green.
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…ename Four comment, docstring and diagnostic sites on this branch described the shared uploader's checksum inputs as a rename in progress. Read at the pin this repository actually uses (a5765019), the action declares both `installer-checksum`, deprecated, and `archive-checksum`, its replacement, and its Validate-inputs step exits 1 on a non-empty `installer-checksum`. Nothing is renamed, and the hard failure is live at the pin rather than pending a Dependabot bump — so the claim that the pinned action "merely skips the check" is the falsehood, and `main`'s #758 already states the truth. Text only: no assertion, fixture or detector changes. The two diagnostic strings are rewritten to be true of whichever input they report, since both sites loop over `CHECKSUM_INPUTS`; the deprecation detail stays in the module docstring and the constant comment, where it names the input it is about. Twenty-two of the old and new lines sat inside the 88-column limit; ruff format reports both files unchanged. Found while rebasing onto origin/main: main's #759 added a raw-text scan over `.github/workflows` asserting neither `installer-checksum` nor `CODESCENE_CLI_SHA256` is named there, which is what surfaced the same superseded research on our side. See the rebase receipt. validate: make test-workflow-contracts (722 passed, 2 skipped) and make lint (pylint 10.00/10, interrogate 100%) green on this tree. Co-Authored-By: Claude Code <noreply@anthropic.com>
leynos
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Sep 23, 2026
…ename Four comment, docstring and diagnostic sites on this branch described the shared uploader's checksum inputs as a rename in progress. Read at the pin this repository actually uses (a5765019), the action declares both `installer-checksum`, deprecated, and `archive-checksum`, its replacement, and its Validate-inputs step exits 1 on a non-empty `installer-checksum`. Nothing is renamed, and the hard failure is live at the pin rather than pending a Dependabot bump — so the claim that the pinned action "merely skips the check" is the falsehood, and `main`'s #758 already states the truth. Text only: no assertion, fixture or detector changes. The two diagnostic strings are rewritten to be true of whichever input they report, since both sites loop over `CHECKSUM_INPUTS`; the deprecation detail stays in the module docstring and the constant comment, where it names the input it is about. Twenty-two of the old and new lines sat inside the 88-column limit; ruff format reports both files unchanged. Found while rebasing onto origin/main: main's #759 added a raw-text scan over `.github/workflows` asserting neither `installer-checksum` nor `CODESCENE_CLI_SHA256` is named there, which is what surfaced the same superseded research on our side. See the rebase receipt. validate: make test-workflow-contracts (722 passed, 2 skipped) and make lint (pylint 10.00/10, interrogate 100%) green on this tree. Co-Authored-By: Claude Code <noreply@anthropic.com>
leynos
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Sep 23, 2026
…ename Four comment, docstring and diagnostic sites on this branch described the shared uploader's checksum inputs as a rename in progress. Read at the pin this repository actually uses (a5765019), the action declares both `installer-checksum`, deprecated, and `archive-checksum`, its replacement, and its Validate-inputs step exits 1 on a non-empty `installer-checksum`. Nothing is renamed, and the hard failure is live at the pin rather than pending a Dependabot bump — so the claim that the pinned action "merely skips the check" is the falsehood, and `main`'s #758 already states the truth. Text only: no assertion, fixture or detector changes. The two diagnostic strings are rewritten to be true of whichever input they report, since both sites loop over `CHECKSUM_INPUTS`; the deprecation detail stays in the module docstring and the constant comment, where it names the input it is about. Twenty-two of the old and new lines sat inside the 88-column limit; ruff format reports both files unchanged. Found while rebasing onto origin/main: main's #759 added a raw-text scan over `.github/workflows` asserting neither `installer-checksum` nor `CODESCENE_CLI_SHA256` is named there, which is what surfaced the same superseded research on our side. See the rebase receipt. validate: make test-workflow-contracts (722 passed, 2 skipped) and make lint (pylint 10.00/10, interrogate 100%) green on this tree. Co-Authored-By: Claude Code <noreply@anthropic.com>
leynos
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Sep 25, 2026
…ename Four comment, docstring and diagnostic sites on this branch described the shared uploader's checksum inputs as a rename in progress. Read at the pin this repository actually uses (a5765019), the action declares both `installer-checksum`, deprecated, and `archive-checksum`, its replacement, and its Validate-inputs step exits 1 on a non-empty `installer-checksum`. Nothing is renamed, and the hard failure is live at the pin rather than pending a Dependabot bump — so the claim that the pinned action "merely skips the check" is the falsehood, and `main`'s #758 already states the truth. Text only: no assertion, fixture or detector changes. The two diagnostic strings are rewritten to be true of whichever input they report, since both sites loop over `CHECKSUM_INPUTS`; the deprecation detail stays in the module docstring and the constant comment, where it names the input it is about. Twenty-two of the old and new lines sat inside the 88-column limit; ruff format reports both files unchanged. Found while rebasing onto origin/main: main's #759 added a raw-text scan over `.github/workflows` asserting neither `installer-checksum` nor `CODESCENE_CLI_SHA256` is named there, which is what surfaced the same superseded research on our side. See the rebase receipt. validate: make test-workflow-contracts (722 passed, 2 skipped) and make lint (pylint 10.00/10, interrogate 100%) green on this tree. Co-Authored-By: Claude Code <noreply@anthropic.com>
leynos
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Sep 27, 2026
…ename Four comment, docstring and diagnostic sites on this branch described the shared uploader's checksum inputs as a rename in progress. Read at the pin this repository actually uses (a5765019), the action declares both `installer-checksum`, deprecated, and `archive-checksum`, its replacement, and its Validate-inputs step exits 1 on a non-empty `installer-checksum`. Nothing is renamed, and the hard failure is live at the pin rather than pending a Dependabot bump — so the claim that the pinned action "merely skips the check" is the falsehood, and `main`'s #758 already states the truth. Text only: no assertion, fixture or detector changes. The two diagnostic strings are rewritten to be true of whichever input they report, since both sites loop over `CHECKSUM_INPUTS`; the deprecation detail stays in the module docstring and the constant comment, where it names the input it is about. Twenty-two of the old and new lines sat inside the 88-column limit; ruff format reports both files unchanged. Found while rebasing onto origin/main: main's #759 added a raw-text scan over `.github/workflows` asserting neither `installer-checksum` nor `CODESCENE_CLI_SHA256` is named there, which is what surfaced the same superseded research on our side. See the rebase receipt. validate: make test-workflow-contracts (722 passed, 2 skipped) and make lint (pylint 10.00/10, interrogate 100%) green on this tree. Co-Authored-By: Claude Code <noreply@anthropic.com>
leynos
pushed a commit
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Sep 27, 2026
…ename Four comment, docstring and diagnostic sites on this branch described the shared uploader's checksum inputs as a rename in progress. Read at the pin this repository actually uses (a5765019), the action declares both `installer-checksum`, deprecated, and `archive-checksum`, its replacement, and its Validate-inputs step exits 1 on a non-empty `installer-checksum`. Nothing is renamed, and the hard failure is live at the pin rather than pending a Dependabot bump — so the claim that the pinned action "merely skips the check" is the falsehood, and `main`'s #758 already states the truth. Text only: no assertion, fixture or detector changes. The two diagnostic strings are rewritten to be true of whichever input they report, since both sites loop over `CHECKSUM_INPUTS`; the deprecation detail stays in the module docstring and the constant comment, where it names the input it is about. Twenty-two of the old and new lines sat inside the 88-column limit; ruff format reports both files unchanged. Found while rebasing onto origin/main: main's #759 added a raw-text scan over `.github/workflows` asserting neither `installer-checksum` nor `CODESCENE_CLI_SHA256` is named there, which is what surfaced the same superseded research on our side. See the rebase receipt. validate: make test-workflow-contracts (722 passed, 2 skipped) and make lint (pylint 10.00/10, interrogate 100%) green on this tree. Co-Authored-By: Claude Code <noreply@anthropic.com>
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…deScene report hand-off (#718) (#748) * Record the which resolver's cwd_mode in bounded telemetry `WhichResolver` searches four domains — PATH only, PATH plus the workspace root, PATH plus the current directory, and PATH followed by a recursive workspace walk — but its counters recorded only the cache outcome, the final result, and the error category. A `workspace-recursive` miss and an `auto` miss produced the identical series, so an operator could not tell whether recursive lookup contributed to a resolution or whether a manifest had requested it at all. Move both resolver counters into a `telemetry` module that owns their names and every label vocabulary, and add a `cwd_mode` label drawn from a closed four-value set. The span carries the same value at creation, so a trace correlates with the series it produced. The label is the bounded telemetry spelling, not the template spelling: the module maps `CwdMode::WorkspaceRecursive` to `workspace_recursive`, and the existing `category` vocabulary is now single-sourced there rather than repeated as string literals. Nothing a template supplies reaches a label: no command name, path, workspace name, or environment value is recorded, so the series stay exportable. The application recorder admits each series by its exact label shape. The resolution counter is admitted under two shapes because a failure adds `category` and a success does not. The tracing capture helper now records span fields by span name, since a field set at creation never reaches `on_record`; the previous discovery-span-only accessor is generalised rather than duplicated. * Test the bounded which resolver cwd_mode telemetry Adds resolver-side and application-recorder coverage for the `cwd_mode` label. The resolver suite drives the real `WhichResolver` through a local `DebuggingRecorder`, so the series asserted are the ones a manifest produces; the tracing cases install a temporary subscriber and check the span fields and the failure event field by field. Two properties are pinned. The `cwd_mode` label separates resolutions that are otherwise identical, which is what the counters could not do before. And nothing outside the closed vocabularies leaves the process: the command name, the workspace root, and the matched path are asserted absent from every captured event and span field. The recorder cases are the allowlist's specification. They exposed an over-permissive rule: the three-label shape admitted any declared category on any outcome, so a `found` series carrying a `category` was exported even though no call site can produce one. `WHICH_RESOLUTION_FAILURE_OUTCOME_VALUES` now names the two outcomes that legitimately carry a category, and the three-label shape admits only those. The tracing capture helper gained a named-span accessor because the resolver span is not the discovery span; `span_fields` keeps the existing discovery-only call site working unchanged. * Validate the coverage report before CodeScene is handed it The trunk lane wrote `lcov.info`, read it back through an input of its own, and uploaded it, and nothing in between ever opened the file. Existence was the whole check, so an empty or truncated report -- which the generation action reports success for -- reached CodeScene and was refused there, hours later and in another system, as a check run reading "No valid coverage report found in the build pipeline" against a commit whose job passed every step. That message names neither the step nor the file at fault. The lane now stages the report into a directory of its own and runs `scripts/validate_coverage_artifact.py` over it. That validator already owns the LCOV contract for a hostile report, reads the file as data without executing anything in it, and is exercised by `make test-coverage-artifact`; it had no live subject until now. The step sits after the report is written, before the upload that sends it, and before `Show sccache statistics`, which `sccache_contract_test.py` requires to follow every compile step. The new `codescene_upload_invariants` predicates hold the lane to the rest of the delivery contract, and `codescene_upload_contract_test` drives them against the repository file and against synthetic lanes, so a detector that stopped matching cannot let the assertion pass over an empty set. They cover the ordering of the three steps, the input names the generator and the upload agree on, the format they agree on, the credential being both carried and gated on, the generator's archive surviving, and the checksum input that is no longer passed: its value came from `vars.CODESCENE_CLI_SHA256`, and this repository declares no variables, so it resolved to the empty string and verified nothing while reading as though it did. `workflow_variable_scan` holds the `vars.` scan those predicates use. It is general to any step rather than particular to this lane, so it lives apart from the lane's own contract, as does its test module. * Record the cwd_mode telemetry and report-delivery contracts Two documents gained contracts this branch introduced. ADR-024 carries the resolver's bounded search-domain telemetry as an addendum: the `cwd_mode` label and its closed set, the two counters and the span that carry it, the note that the vocabulary is a telemetry spelling rather than the template spelling, the deliberate series-shape compatibility change, and the redaction rules that are unchanged. The developers guide and the design document describe the same contract where each already discusses the `which` domain. ADR-025 carries the report-delivery contract the trunk lane now enforces. Its `## Verification` section gains the reason the lane reads the report as data before submitting it, the validator it runs, the step's required position, and the workflow contract test that holds the lane to it. Two sentences in that ADR and in the developers guide described the hostile-artefact validators as standalone maintenance tools; they no longer are, because the trunk lane runs the outer one over the report it generated itself. Both sentences now say so without disturbing the claim they were making, which is that no active workflow downloads pull-request coverage. * Split the which telemetry tests and make their fixture fallible `make lint` reported two Whitaker findings against the branch-new test module, both of which the suite is right about. `module_max_lines` saw 591 lines against a 400-line budget. The cases split cleanly by what they read: the counter series in one child, the span and its event in the other. Both are declared with an explicit `#[path]`, following the layout `ninja_gen_tests.rs` and `ninja_gen_property_tests.rs` already use, so the implicit same-stem rule does not fire on the new directory. `no_expect_outside_tests` saw `NonZeroUsize::new(8).expect(..)` in `Workspace::resolver`. That helper arranges state rather than asserting, and arrangement can fail, so it now returns `Result` and each caller propagates with `?`. The capacity is a literal, so the error branch is unreachable, but the house policy is that only a test body may unwrap — a fixture makes the failure a value and lets its caller decide. The public consts' doc comments also lose two intra-doc links. `CwdMode` and `ResolveError` are `pub(crate)`, and `Cargo.toml` denies `private_intra_doc_links`, so `cargo doc` refused the links from the public `WHICH_CWD_MODE_VALUES` and `RESOLVE_ERROR_CATEGORY_VALUES`. Plain code spans carry the same meaning without widening the public API to keep a link alive. * Narrow the workflow-contract types typecheck rejected `make typecheck` reported ten `invalid-argument-type` diagnostics against the branch-new contract suites, all of the same two shapes. `step_named` returns `dict | None`, and the guard was `any(step is None for step in ordered)`. That predicate is true or false as a whole, so the calls that follow could not narrow each name to a step. Spelling it as three identity tests restores the narrowing without changing when it triggers. `unbound_variable_references` took a `dict[str, object]`, which is invariant in its value type: the test's `{"if": UNDECLARED}` infers `dict[str, str]` and so was rejected even though the scan only reads. A `Mapping` is the honest parameter — covariant, and all the function needs. * Fix two defects the gate run surfaced `make test` failed `span_fields_are_captured_by_name_and_recording_point`: the span declared `later` only at `record` time, and `Span::record` resolves a field name against the span's declared set, so the call was dropped before it could reach `on_record`. The test therefore never exercised the recording point it exists to cover, and its expected value was unreachable. Declaring `later = tracing::field::Empty` at creation makes the `record` resolve, which is the shape the passing sibling case already uses. `make lint` failed `PLR0916` on the three-way `is None` guard added when `ty` rejected the original `any(...)` predicate. The two constraints are satisfiable together: `report_steps` now loops over one name at a time and returns early, so the guard is a single test and the returned tuple carries three narrowed steps. The absent-step message reads the names back from the same const the lookup walks, so the two cannot drift. * Check action pins by shape, and split the lane-step helpers Adopt the action-reference convention main introduced in #731: a contract asserts the action a step names and the shape of its pin, never the revision, because the revision is whatever the dependency updater last wrote. `codescene_upload_invariants` now routes both references through the shared checker, and the clean-lane fixture carries a full SHA so the shape rule is exercised rather than assumed. Five negative cases cover a tag, a branch, an abbreviated SHA, an uppercase SHA, and a bare path. Extracting the two lane-generic helpers, `step_named` and `action_reference_of`, keeps both modules inside the 400-line ceiling the Python lint gate enforces. The invariants module had reached exactly 400 lines, so the pin work could not land without the split. `action_reference_of` turns the shared checker's assertion into an offender string, so one bad reference joins the rest of the report rather than ending the scan. * Document the workflow-contract gate in the pre-commit set `make test-workflow-contracts` was described in the developer guide but absent from both the "Quality gates" list and `AGENTS.md`'s pre-commit list. `make test` runs the Rust suite only and `make lint` lints the Python sources without executing them, so a change to a workflow or to a suite under `tests/workflow_contracts/` was verified by no documented gate at all: the contract could be edited into a shape it no longer enforces, and every listed command would still pass. Add it to both lists, conditional on the change touching a workflow, a workflow-contract suite, or the coverage artefact validators under `scripts/`, and state why neither of the two standing gates covers those suites. Fold the duplicated "`make test` runs only the Rust suite" sentence in the guide into the paragraph that now makes the same point once. * Correct two unverifiable claims in the report-validation step The step's comment said `uv` was on PATH because the generation action "also exports UV_PYTHON_INSTALL_DIR". The action does install `uv` — its first steps run `astral-sh/setup-uv` and then `uv run` throughout, which the comment now says — but it never sets that variable: `setup-uv`'s `python-version` input sets `UV_PYTHON`, and the shared action does not pass the input at all. Nothing in this repository references the variable. State the verified reason instead. The header also asserted that the generation action reports success for an "empty or truncated" report. What is verifiable is narrower and is what the step actually guards: the upload asserts only that the file exists and then hands it to `cs-coverage upload`, so any malformed report reaches CodeScene and is refused there. Say that. Both are comment-only. The shell body is unchanged, and the workflow contracts, actionlint, yamllint, check-fmt, and markdownlint all pass over the edited file. * Find a vars. reference anywhere inside an expression The scan that forbids undefined repository variables located a reference only when it immediately followed `${{`. A compound condition such as `github.event_name == 'push' && vars.SECRET != ''`, a call such as `contains(vars.FOO, 'x')`, and a second expression in the same value all reported clean while resolving to the empty string — the exact failure the scan exists to prevent, in the shapes most likely to be written by hand. Locate the `${{ ... }}` regions first and scan each body second, so a reference is found at any position inside an expression while text that merely spells `vars.` outside one stays unreported. Three tests pin the properties that generality rests on: a reference is found in a conjunction, a function argument, and a later expression; a literal spelling is not a reference; and a value naming several variables is reported once, since the caller reports which values to inspect. Also correct two prose defects the same review raised. The pre-commit target list claimed `make test-workflow-contracts` covered changes to the coverage artefact validators under `scripts/`, which it does not run — `make test-coverage-artifact` owns those, and neither target runs the other. And the sccache ordering constraint in ADR-025 and the developer guide read as a description of the lane rather than a requirement `tests/workflow_contracts/sccache_contract_test.py` imposes on it. Two ruff defects in the same file are fixed with it: a manual list comprehension, and a docstring past the configured line limit. * Tighten the report-delivery and resolution-shape contracts Four review findings, each verified by probe before the fix and each fix falsified afterwards to show it is load-bearing. The workflow expression scan stopped at a newline. A YAML literal block keeps its newlines after parsing, so a step that breaks an expression across two lines is scanned as text containing one, and `.` without `DOTALL` never closed the region: a `vars.` reference inside went unreported. The scan now reads across newlines. The upload's credential gate was matched by substring, and `CS_ACCESS_TOKEN` is a substring of `NOT_CS_ACCESS_TOKEN`. All three checks accepted a gate on the longer, unset name, which compares '' with '' and never opens, so the lane would read as gated while submitting nothing. The scan now enumerates `(namespace, name)` identifier pairs — the unit a GitHub Actions expression addresses a value with — and the gate is held to the exact name in the `env` namespace the `if` is evaluated against. Since GitHub evaluates `if` as a bare expression, the extractor takes a `bare` keyword that scans the whole value; the delimited form is what the rest of the workflow uses. The validation-step predicate required the validator script and an `--artifact-dir` argument, and stopped there. Naming a staged directory without copying the report into it validates whatever else is in it — on a runner, nothing. The predicate now requires the copy as well, and the contract test gains a case for a stage that is never filled. The recorder admitted two-label resolution series whose outcome was any of `found`, `not_found`, or `error`, so a failure recorded without its category matched the success shape and reached the snapshot. `WHICH_RESOLUTION_SUCCESS_OUTCOME_VALUES` names the one outcome the two-label shape may carry, making the two vocabularies disjoint complements: a `found` series with a category and a failure without one are both refused. Co-Authored-By: Claude Code <noreply@anthropic.com> * Satisfy ruff on the new workflow-contract predicates Three findings from `make lint`, all in files this branch adds: an unparenthesised implicit string concatenation in the contract test's table, an `f` prefix on a regex with no placeholders, and a missing Returns section on `_copies_report_into`. Co-Authored-By: Claude Code <noreply@anthropic.com> * Split the CodeScene contract modules under the 400-line cap `make lint` failed on `too-many-lines`: the upload contract test had grown to 403 lines and its invariants module to 489, against a cap of 400 that pytest, ruff and pylint all enforce. Split along the seams the suite already had. The rules about the secret the lane is handed — which namespace it is read from, that it is read from a secret, and that the step is gated on it by identifier rather than by a substring of the text around it — describe a credential, not a report, so they move to `codescene_credential_invariants`. The synthetic lane the contract test drives its cases on, its fixtures, and the accessors it reads them back through are data rather than contracts, so they move to `codescene_upload_lane_data`, following the `sccache_compile_step_data` and `cache_contract_data` precedent. The suite is unchanged at 606 passed, 2 skipped. Co-Authored-By: Claude Code <noreply@anthropic.com> * Reject the five ways a contract could certify a lane it did not read The second review pass found five shapes the report-delivery contract examined in appearance but not in substance. A declared value of `env.secrets.CS_ACCESS_TOKEN` contains `secrets.` while reading the field off the step's own environment: the credential came from `env`, not from the secret store, and the substring test accepted it. A gate spelling the credential inside a string literal gated nothing. GitHub's expression grammar treats a name as a reference only when it is written unquoted, so `${{ 'env.CS_ACCESS_TOKEN' != '' }}` compares a non-empty literal against the empty string, is always true, and never opens on anything. `expression_references` now strips single-quoted literals before enumerating identifiers, which is the separator the grammar itself uses. `step_named` returned the first of a repeated name and its docstring claimed a caller asserted uniqueness, which none did. GitHub keys nothing on a step's name, so a copy-pasted step keeps its original name and runs: two uploads, the second unpinned, in a lane the contract declared clean. `step_names_declared_twice` answers that as the fault it is, the lookup stays a lookup, and `report_steps` refuses a lane that repeats one of the three names rather than reporting claims about an arbitrary member. `_copies_report_into` matched `mv`, which satisfies it while removing the workspace copy the upload has yet to read. Only `cp` and `install` are copying commands; the pattern is now anchored to them. The fixture resolver pinned `PATH` but not `PATHEXT`. On Windows the fixture executable is written as `<command>.cmd` and the override is what tells the resolver the extension is executable, so a host whose `PATHEXT` omitted `.CMD` would fail the hit cases on a correct resolver. The report-validation predicates moved to their own module: the additions took `codescene_upload_invariants` past the 400-line cap, and the third bullet's whole remedy is stated over the validating step alone. Eight cases pin the fixes, including the two containment shapes and the `mv`-as-copy shape that previously passed. * Factor the which series predicates out of one long match CodeScene scored `Series::matches` as a Complex Method at impact 9.47. The method answered four questions in one expression, three of them through a closure that rescanned the label list between each test, and the fourth through a `map_or_else` whose two arms read as different kinds of question. `LabelSet` now owns the label scans, so each predicate asks once what it is about. `Series` keeps one method per clause — the counter's identity, its category, its count — and `matches` composes them, which is what the CodeScene rule is asking for rather than a shorter expression. `assert_cache_counter` had the same repeated-rescan shape and now reads through the same type. Behaviour is unchanged: the three series cases pass, and the label-count assertion that a bounded pair is a set of two is still made at the same place. * Make the counter-name check an associated function `is_resolution_counter` reads nothing from `self`, so clippy's `unused_self` fired on it once the extracted helper was compiled. The question it answers is about the entry — is this a counter under the resolution metric's own name — rather than about any expectation, so an associated function is what it should have been. The two sibling predicates genuinely read `self` and stay methods. Gate evidence at this content: make lint (all four sub-lints, including lint-whitaker and lint-python), check-fmt, typecheck, markdownlint, nixie, test-workflow-contracts (614 passed, 2 skipped), test-coverage-artifact, doc-coverage, github-actions-lint — all green. * Constrain report validation to command segments The report-delivery contract's two remaining clauses were stated over lines of shell, which is not what a shell runs. A one-liner joining several commands with `&&` therefore read as one: a `cp` of some unrelated file satisfied the copy rule when a later command on the same line named the staged directory, and a directory that was never created satisfied the staging rule because the argument only had to be non-empty. Both predicates now read the script as commands. `_command_segments` splits on `&&`, `||`, `;` and `|`, and each check is asked of one segment at a time; the copy has to name both the report and the directory in the same command, and the directory has to be one the script creates — through `mktemp --directory`, in either spelling, or through `mkdir`, with the variable or the literal matching what the flag was handed. The shell fixtures move to `codescene_validation_step_data`, which the test module was pushed past the 400-line limit by, and which states each case as the one thing it varies. Cases are added for an uncreated `--artifact-dir` (literal and through a variable) and for a copy and a directory named on one line but in different commands, joined with `;` and with `&&`, beside the control one-liner that does stage the report and must still be accepted. * Split the report-validation contract under the 400-line cap The report-validation predicates and the tests driving them had both grown past the 400-line limit the Python lint gate enforces, so each was split along a seam rather than trimmed. The shell-text reading is not a fact about this lane. Whether a script is a list of lines, which words a command is handed, and which names capture a command's output are questions about shell text, so they move to `shell_command_scan`. The predicates keep only what is theirs: which directory the validator is handed, whether it was created, and whether the report was copied into it. The four `run`-driven tests move to `codescene_validation_step_test`, where the subject — what the validating step's script must read as — is stated once. The repeated arrange-and-assert shape is extracted so a case still states only what it varies and what it expects. The split is behaviour-preserving: diffing the pre- and post-split implementations over seventeen shapes shows fourteen identical verdicts, and the only three that change are the false passes this round's findings were about, with nothing the old code rejected now accepted. The docs that named the covering module are updated to name both, and the stale cross-reference in the lane-data docstring is corrected. Co-Authored-By: Claude Code <noreply@anthropic.com> * fix(workflow-contracts): read commands where they run Address the CodeRabbit findings on the report-delivery contract work. `command_operands` searched a segment for the command's name, so a *mention* satisfied it: `echo "cp a b"` names `cp` and runs it not at all, and a rule reading that mention certifies a copy the script never made. Anchor the read with `re.match` over a `COMMAND_PREFIX` covering leading whitespace, `VAR=value` assignments, and the path the executable was named through. An unrecognised form — `sudo cp`, `xargs cp` — is now reported rather than accepted, which is the safe direction for a guard. `names_a_component(prefix=True)` accepted the name in *any* component, so `"/tmp/${staged}"` and the sibling `"${staged}-old/lcov.info"` both satisfied the copy-destination check while filing the report where the validator never looks — contradicting the docstring its caller already relied on. Require the name to be the operand's leading component. `assigned_from` credited a name whose value merely spelled the command. A capture is a command *run*, so require a command substitution. Also: name the cache-outcome constants the module already exports rather than repeating their values, and drop the hard-coded `--python` from the two workflow fixtures, which asserted an interpreter version no test owns. Add `shell_command_scan_test.py` — the scan module had no test module of its own — pinning the mention cases in one direction and the supported direct forms in the other, so the reading is neither too coarse nor too fine. The contract suite goes 651 passed, 2 skipped. Gates: check-fmt, lint, typecheck, markdownlint, nixie, test-workflow-contracts, test-coverage-artifact, doc-coverage, test — all exit 0 (nextest 3243 passed, 5 skipped; doctests 82+2+39 passed). * fix(which): narrow the category vocabulary and keep the fixture's shape Address the two CodeRabbit findings on the report-delivery work. Ten `CATEGORY_*` constants were `pub` while every sibling label constant in the module is `pub(super)`. Nothing outside `which` names them: the public surface is `RESOLVE_ERROR_CATEGORY_VALUES`, which the application recorder reads. Narrow all ten, so the module states one visibility for its label constants rather than two. The validating-step fixture is built as an f-string, where a lone backslash before a newline is Python's own line continuation and is consumed at parse time along with the newline. The fixture therefore generated a script with the `uv` invocation joined into one line, while the lane writes it continued across two. The cases went on passing — a joined command is still one command — so nothing reported the drift, but they exercised a shape the lane does not have and no longer covered the continued form. Double the backslash so the shell gets its continuation, and pin the property with a test comparing the fixture's script to the lane's own on whether the invocation is continued, rather than on equality, so the two cannot silently diverge again. Proven by liveness probe: with the single backslash restored the new test fails and the other fourteen pass, which is the evidence that the drift was invisible to the existing cases. Gates: check-fmt, lint, typecheck, markdownlint, nixie, test-workflow-contracts (652 passed, 2 skipped), test-coverage-artifact, doc-coverage (98.81%, unmoved), test (3243 passed, 5 skipped) — all exit 0. * fix(workflow-contracts): read commands where they run, not where they read Four false-accepts in the report-delivery detectors, each reproduced with a constructed lane before a line was changed: - A step that only *prints* the validator satisfied the check that the validator runs. `echo "uv run ... validate_coverage_artifact.py"` contains the script's path and executes nothing, so the step would submit the very report it exists to reject. The script is now read as command segments and the validator has to be an operand of an interpreter — `uv`, `python`, `python3` — rather than a substring of the text. - `cp a b c dir` was read with the *second* operand as the destination. That is another source, so a command whose report never reached the staged directory satisfied the copy check. The destination is the last operand. - A line continuation was read as a line break. The shell removes the backslash and the newline before parsing, so the two lines are one command; read apart, an `echo` continued into a line naming a script passed for the script being run. Continuations are now joined before the split, which is the safe direction — joining can only merge segments, making a rule that asks after one command harder to satisfy. - `name=value` was read as an assignment anywhere in a segment. The shell reads it as one only *before* the command word, so `echo staged="$(mktemp -d)"` assigns nothing and creates nothing, while crediting it recorded a directory the script never made. Only the leading run of assignments is read now. The credential check also required the namespace the gate compares: a token read from `github.` or `vars.` names a same-named value from somewhere the `if` never saw, resolving empty and leaving the action unauthenticated while the step reads as configured. Every fix is driven by a regression case, and each was liveness-checked by re-injecting the defect and watching only the new case fail. The real trunk lane and the clean fixture still report no offenders. Two gate regressions from the above are fixed here as well: the reflowed rows in codescene_validation_step_data.py tripped Ruff ISC004, and the unguarded `HEAD_ASSIGNMENTS.match(segment).end()` tripped ty's unresolved-attribute. Gates: check-fmt, lint, typecheck, markdownlint, nixie, test, doc-coverage all green; test-workflow-contracts 661 passed, 2 skipped (both pre-existing). CodeRabbit findings addressed: the four distinct findings reported on cd4993c2. * docs(which): name the resolution counter's failure label `category` The `which` resolution metric labels its failure category `category` (`CATEGORY_LABEL`), but four doc comments called it `error_category`. That name belongs to the `stdlib.which.resolve` span field, which is a different surface: the span records `error_category`, the counter carries `category`. Conflating them is why the comments described a label set the recorder never sees. Correct the four comments, and leave the sites that name `error_category` correctly alone — `cache.rs`'s `field::Empty` declaration, the `span.record` and `tracing::debug!` calls beside them, the tracing-capture assertions, and the unrelated recipe-shell series at `observability_recorder.rs:175`. Raised by CodeRabbit against the first of the four; `git grep` found the rest, and `git blame` confirms all four are branch-authored. Co-Authored-By: Claude Code <noreply@anthropic.com> * fix(workflow-contracts): read both addressing syntaxes, and gate on comparison Three review findings, one defect: a detector satisfying the wording of the contract while accepting something that does not do what the contract asks. The variable scan read only `vars.NAME`. GitHub's contexts reference gives an expression two ways to address a value — property de-reference and index — so `vars['CODESCENE_CLI_SHA256']` reads the same undeclared variable and resolves to the empty string just the same, while the scan reported it clean: the exact failure the module exists to prevent, in a spelling a `.`-only pattern cannot see. Both syntaxes are now read by one left-to-right token scan, which is also what keeps a quoted run meaning two different things: the `'env.TOKEN'` in `${{ 'env.TOKEN' != '' }}` is a literal that names nothing, while the quotes in `env['TOKEN']` are an index's delimiters with the name inside them. A separate pass over a region could not tell those apart. The credential gate check accepted a condition naming the credential without comparing it: `env.CS_ACCESS_TOKEN == ''` and `!env.CS_ACCESS_TOKEN` both name the secret and both open on exactly the run the gate exists to skip, so the lane would have read as gated while submitting nothing. It now requires a `!= ''` against the credential, in either operand order. Probing that change surfaced a second fault in the same check: an operand captured as text has to decide where an operand ends before it knows what the operand is, and the two index spellings end differently, so `env[ 'X' ] != ''` — a real gate — was reported as though it gated on nothing. The comparison is now read from the reference's own span, which asks the intended question of either spelling and cannot let a neighbouring inverted comparison lend its operator. The validating step's `uv` invocation named the script as an operand of `uv` rather than of the subcommand that runs it, so `uv script.py` — which `uv` refuses as an unrecognized subcommand — was accepted. Only `uv run` hands the script to an interpreter, and only the operands after the subcommand are read. Co-Authored-By: Claude Code <noreply@anthropic.com> * docs(adr-025): state the credential gate's second half, and drop a dead constant ADR-025 described the credential contract as "both carried and gated on" and left the gate at the identifier reading. That was the whole of the contract when it was written; the gate now also requires the comparison to be the present-one, so the sentence is short by the half a reviewer would need in order to know what the lane is held to. Writing it down surfaced that the reason first given for reading the comparison from the reference's span was wrong. The claim was that the two addressing syntaxes — `env.NAME` and `env['NAME']` — end differently. They do not: both are followed by ` != ''`. What differs is the two spellings of the *index*, `env['X']` closing its bracket against the quote and `env[ 'X' ]` against a space, which is what a run-of-non-space operand reads as `]`. The measurement is unchanged; only the account of it was, so the sentence now says what the code says and both spellings are named. The module's own `NON_EMPTY_LITERAL` goes with it. It stood in for a literal that is not the empty one, back when a `\S+` operand had to be stripped out of the condition before the comparison could be read. A span already delimits the operand, so nothing strips anything and the constant was referenced by nothing. Found by comparing every module-level name against its references rather than by reading the diff, which is why the removal is in the same commit as the prose it explains. Co-Authored-By: Claude Code <noreply@anthropic.com> * refactor(workflow-contracts): lower the validator lane's complexity, and move the script reading out `CodeScene Code Health Review (main)` passed at 6d41a867 and failed at 9648bd3f, reporting one advisory rule: this module's mean cyclomatic complexity had reached 4.14 across 7 functions against a threshold of 4. The only change to the file between those two commits is the 52 lines added with the `uv run` fix, so the finding is a regression from that commit rather than inherited debt. It is resolved by extraction, not by exemption. The reading that decides whether a script is *run* is a question about shell text — which words a command is handed — and not about this lane, so it moves to `shell_command_scan`, the module whose docstring already claims that question and which was itself separated from this one for size. It is now `script_operands(segment, runner)`, with the multiplexer's subcommand read where it belongs: `MULTIPLEXER_COMMAND` and `MULTIPLEXER_RUN_COMMAND` name the fact that the word after `uv` is a subcommand, which is why a path handed straight to `uv` was never a script it ran. The former local `_script_operands` is deleted; `INTERPRETERS` now names the multiplexer through the shared constant. The rest is decomposition of the predicates that had accumulated branches: - `_runs_validator` becomes an `any` over segments, with the per-segment question in `_runs_validator_in`. Stated per segment so no reading spans two commands — one command naming the validator and another naming the report is not a script that ran anything. - `_created_directories` becomes an `any` over `_directories_made_in`, with the `mktemp`-directory test in `_makes_directory_with_mktemp`. Both spellings of the flag are still accepted, and a variable is still never credited with a directory a neighbouring command made. - `_copies_from_into` becomes an `any` over `COPYING_COMMANDS` calling `_copies_in_order`, which keeps the source-first, destination-last reading intact — `cp a b c dir` still fails, and `mv` still does not count. Behaviour is unchanged and was checked rather than asserted. Before/after verdicts were compared on 15 scripts covering every accepted spelling and every false accept this contract was written for (bare path to the multiplexer, validator only named in an `echo` or a comment, directory named but never created, created but never filled, `mv` instead of a copy, bare `--artifact-dir`): identical on all 15. The moved helper was compared against the local one it replaces on 45 probes spanning both subcommand orders, absolute paths, wrappers, assignments and mentions: identical on all 45. Complexity falls from 4.29/7 functions to 2.80/11 (radon), and the module stays under the 400-line lint cap at 389. `shell_command_scan` gains a documented helper and is 3.60/5 functions. The new readings are pinned in `shell_command_scan_test.py`: six spellings that do run the script, and four that do not — including the bare path to the multiplexer, which the pre-fix reading accepted and which is why this helper exists. Gates run on this content: check-fmt (109 files formatted, mdtablefix 143 unchanged), test (3307 passed, 5 skipped; doctests 2 + 39), typecheck, lint (both pylints 10.00/10, interrogate 100%). test-workflow-contracts: 691 passed, 2 skipped — 11 more than before, being the new cases. Co-Authored-By: Claude Code <noreply@anthropic.com> * fix(workflow-contracts): read a bare `if`, and give the mkdir half a test Address the two code-side CodeRabbit findings on the report-delivery work. `unbound_variable_references` read only `${{ ... }}` regions, so a bare `if: vars.FOO == 'true'` was reported clean. GitHub evaluates a step's `if` as an expression with or without the delimiters, so the undelimited spelling resolves to the empty string exactly as the delimited one does. Measured over `.github/workflows/*.yml`: 34 of 34 step-level conditions are written bare — zero are delimited — so the old reading did not miss an edge case, it missed every condition this repository writes. The reading is now paired with whether the string is an expression. A new `_step_strings` yields each string with that flag, and `bare=True` reaches `reference_occurrences` only for a step's own top-level `if`. The scope is pinned by a case covering a run block, a literal message, and an `env` entry. Reading every field whole was narrower than expected, and measured rather than assumed: `_names_an_unpermitted_variable` flags only the `vars.` namespace, so it produces no false positive on a `run` block naming `cargo fmt.version` — a direct all-bare scan of all 171 steps reports nothing extra. What an all-bare reading breaks is the `env` case alone: injecting it fails that one case and no other (1 failed, 29 passed). `_step_strings` also yields each step's keys as text, which is one line more than a values-only loop and not equivalent to it. Probing the two forms across every key/value/container shape finds one divergence: a `${{ vars.X }}` written as a key rather than a value is reported by the shipped form and missed by the values-only one. GitHub evaluates `${{ }}` in mapping keys, so that spelling does resolve. No workflow here writes one, so this is defensive rather than a bug caught, but it keeps the detector's coverage from depending on which side of the colon an author chose. Regression cases cover three bare conditions — a comparison, a conjunction, and a function call — plus the undelimited spelling of the permitted variable, which keeps the fix from being a scan that reports every `if`. Evidence, both re-run after the change: - Reverting the bare reading fails exactly the three new condition cases and nothing else (3 failed, 27 passed), so the cases are not a tautology. - The full contracts suite against the repository's real workflows goes 695 -> 704 passed, 2 skipped, and a direct scan of all 171 steps reports no unpermitted reference while exercising all 34 bare conditions. `_created_directories` carried its two spellings in one function, and the `mkdir` half had no test reaching it at all. Each spelling is now a helper owning its own detection and extraction — `_mktemp_directories` and `_mkdir_directories` — and the caller delegates to both per segment. `_directories_made_in` is absorbed and `_makes_directory_with_mktemp` is inlined into its single caller. Two creation-binding cases close the untested half: the control that keeps a `mkdir` reading from being tightened until a script staging somewhere fixed stops being recognised, and the negative where `echo "mkdir staged"` runs `echo` and so creates nothing. Both were liveness-checked by loosening the reading and confirming only the new cases fail (2 failed, 21 passed). Results are preserved rather than assumed: a 23-script differential corpus covering both spellings, mentions, wrapper commands, assignment binding, and both lanes end to end returns identical readings before and after. `make test-workflow-contracts`: 704 passed, 2 skipped. Ruff check and format, Pylint (10.00/10, up from 9.89), and Interrogate (100%) all pass on the touched modules; `codescene_report_validation_invariants.py` stays at 389 lines, inside the 400-line cap. Co-Authored-By: Claude Code <noreply@anthropic.com> * docs(which): state the cwd_mode label's request, not a result's source Address the CodeRabbit finding on the `cwd_mode` wording. The label was described as showing which search domain a resolution used, or which domain produced a result. It cannot: `WhichResolver::resolve` derives it from `options.cwd_mode` before the cache probe and before `lookup` runs, so a cache hit under `WorkspaceRecursive` carries `workspace_recursive` having walked nothing. `lookup`'s `handle_miss` calls `search_workspace` only after the flat `PATH` pass finds no matches either. Every location now says the label is the requested search policy, and says explicitly that it does not indicate whether recursive workspace lookup ran or produced the result: - the ADR-024 addendum, including the redaction sentence - `telemetry.rs`: the module doc, the four `CWD_MODE_*` constants, the `WHICH_CWD_MODE_VALUES` doc, and both `describe_counter!` help strings - `cache.rs`: the `resolve` doc comment - `developers-guide.md` and `netsuke-design.md` Two further instances came from this branch's own `87178f16`, so they are part of the delta rather than pre-existing: the doc comments on `a_hit_is_labelled_with_its_search_domain` and its miss counterpart, and the `tracing_capture.rs` module doc. The hit case is the clearest demonstration of the error — the fixture pins `PATH` to the workspace root, so all four cases including `workspace_recursive` resolve through the ordinary `PATH` search and the recursive walk never runs. Three nearby spellings of "search domain" are deliberately left alone, because `options.rs` defines `CwdMode` as the executable-search domain: the label key doc in `observability_recorder.rs`, the `cwd_mode_label` doc, and the case asserting each domain maps to its own declared label, which is a true statement about the requested mode. Prose only; no behaviour changed and no test asserts on these sentences. `make check-fmt` and `make fmt` both pass, and `cargo fmt --check` plus `markdownlint-cli2` report no findings across 145 files. Co-Authored-By: Claude Code <noreply@anthropic.com> * fix(workflow-contracts): state what the pinned uploader does, not a rename Four comment, docstring and diagnostic sites on this branch described the shared uploader's checksum inputs as a rename in progress. Read at the pin this repository actually uses (a5765019), the action declares both `installer-checksum`, deprecated, and `archive-checksum`, its replacement, and its Validate-inputs step exits 1 on a non-empty `installer-checksum`. Nothing is renamed, and the hard failure is live at the pin rather than pending a Dependabot bump — so the claim that the pinned action "merely skips the check" is the falsehood, and `main`'s #758 already states the truth. Text only: no assertion, fixture or detector changes. The two diagnostic strings are rewritten to be true of whichever input they report, since both sites loop over `CHECKSUM_INPUTS`; the deprecation detail stays in the module docstring and the constant comment, where it names the input it is about. Twenty-two of the old and new lines sat inside the 88-column limit; ruff format reports both files unchanged. Found while rebasing onto origin/main: main's #759 added a raw-text scan over `.github/workflows` asserting neither `installer-checksum` nor `CODESCENE_CLI_SHA256` is named there, which is what surfaced the same superseded research on our side. See the rebase receipt. validate: make test-workflow-contracts (722 passed, 2 skipped) and make lint (pylint 10.00/10, interrogate 100%) green on this tree. Co-Authored-By: Claude Code <noreply@anthropic.com> * test(workflow-contracts): state the vars. scan's contract over generated expressions The example-based suite pins one spelling at a time; these properties carry the same contracts over expressions built from the grammar. The oracle is a model that records what it named when it wrote the text, so a disagreement is between the scan and an independent account of the expression rather than between two readings of it. Two probes changed what the properties say, and both times the scan was right: - The two spellings of a condition cannot be read in one value. A step's `if` is read whole *in addition* to its regions, so a value carrying both counts every reference twice by design. Each property now states its case about one spelling, and asserts the pair agrees. - `cargo fmt.version` is a reference as a bare condition and is not one as a run block. The module documents exactly that bound; the example asserting the opposite was replaced. Liveness-checked twice: dropping the permission's namespace condition failed 3 properties, and removing the literal branch from `REFERENCE_TOKEN` failed all 5 reference-reading ones — including the false-accusation property, which caught `'vars['FOO']'` being reported as naming something. The scanner was restored byte-identically both times. The model is split across two modules by layer (fragment vocabulary, then composition) to stay within the 400-line cap; `variable_reference_forms` depends on nothing above it. Gates: ruff check/format, pylint 10.00/10, interrogate 100%, ty, and 36 tests (30 existing plus 6 properties) all pass. * docs(which): document the cwd_mode vocabulary and span_fields The `which` resolver records two counters and a closed label vocabulary that the guides did not describe, and the tracing capture helper grew a `span_fields` accessor alongside `snapshot`. Both are now stated where a reader would look for them. The users' guide gains a `which` resolver observability section beside the executable-discovery and `cwd_mode` material: the counters, the cache outcomes, the two resolution label shapes, the ten-category taxonomy, the redaction rule, and the `workspace-recursive` manifest spelling against the `workspace_recursive` label value. The developers' guide extends the `tracing_capture` section with `span_fields` — what it returns, when it omits a never-recorded `field::Empty`, and the fact that it exists on the root-crate helper's `CapturedEvents` only. Both files pass check-fmt, markdownlint, and the spelling gate. Co-Authored-By: Claude Code <noreply@anthropic.com> * test(workflow-contracts): state the shell scan's contract over generated scripts The example-based suite fixes one spelling at a time of what the shell scan reads. These properties state the same contracts over scripts built from a grammar, with `shell_command_forms` as the oracle: the plan that built a script records what it wrote, so a disagreement is between the scanner and an independent account of the text rather than between two readings of it. No shell is executed. The model's own scanners are never consulted, and the generated text need not be something a shell would accept — the properties are about what the scan should *read*, which keeps the suite free of the platform differences a real shell would introduce. The oracle declares only the supported direct invocations: prefixed environment assignments, a direct command name or absolute path, quoted mentions, the separator and continuation spellings that bound a command, variable-length operand lists, `cp` operand order, and the `mktemp -d` command-substitution assignment. A scanner that recognised anything outside that set would fail a property rather than pass one. Co-Authored-By: Claude Code <noreply@anthropic.com> * test(workflow-contracts): state the CodeScene lane contract over generated edits The cases in `codescene_upload_contract_test` vary one field at a time by hand, holding the contract to the faults somebody thought to write down. These state the same contract over a space: `codescene_lane_edits` draws one bounded edit to a valid lane, the model records what the edit changed and whether the contract must report it, and the property compares that recorded verdict with what `upload_contract_offenders` returns. The verdict is recorded where the edit is built, so a disagreement is between the contract and an independent account of the edit rather than between two readings of the same text. A reportable edit goes further than "something was reported": an offender has to name the change, so a rule that fired for an unrelated reason cannot stand in for the rule the family is about. The recorded set therefore holds every name the change is visible under — the step it was made to, the field or input it was made in, and the credential when the fault is in how the upload is wired. Three modules, split by dependency direction: the model says what an edit is, the constructors build one of each family, and the strategies draw them. Eight families are drawn, seven faults and one control, and a reachability test holds the generator to producing both verdicts and reaching every family. Notes ----- Liveness was proven by injection, twice: mis-recording the reversal family as a control is caught by the reachability test and by the contract comparison, while the two structural tests stay green. Both injections were reverted. `max_examples=300` with `derandomize=True` and `deadline=None`, per the deterministic house settings. Run via `make test-workflow-contracts`. Co-Authored-By: Claude Code <noreply@anthropic.com> * refactor(which): give the resolver its own failure taxonomy `ResolveError::category()` returned a `&'static str` read straight out of the telemetry module's label constants, which made the domain's notion of a failure and the label a metric carries the same declaration. Nothing failed when that happened — every test passed, because the taxonomy *was* the label set — and that is the problem: renaming a metric label would silently rename a domain concept. The domain now owns `ResolveErrorCategory`: an enum beside the error type it describes, with `category()` returning it. The telemetry boundary maps each variant to the label it records, matching every variant explicitly so a new category is a compile error until someone decides what to call it on the wire. `ResolveError::category()` and the boundary mapping are both exhaustive, and the compiler enforces that. The taxonomy is unchanged in what it *says*: every spelling in `RESOLVE_ERROR_CATEGORY_VALUES` is byte-identical, and `RESOLVE_ERROR_CATEGORY_VALUES` is still written as the label constants rather than as an alias of the domain's list, so it remains a separate declaration that the tests tie to the domain's. Coverage -------- `telemetry_tests` gains two cases replacing the one that asserted the old identity, plus a third tying the two declarations together: the taxonomy is total over the error type and every category is reachable; every category maps to exactly one declared label; and the domain's spelling list is the mapped label set, word for word. `tests/resolver_telemetry_boundary_tests.rs` holds the separation itself: a scan of the resolver domain asserting that the modules naming telemetry are exactly the boundary and its declared dependants, as a set equality in both directions so an unlisted importer and a stale permission are each reported. The scan masks comments and literals first, so a module discussing the rule is not reported as breaking it. All four new assertions were proven live by injection: a domain module reaching into telemetry, a stale permission, a variant added with arms but no list entry, and a one-sided rename of one spelling. Each was caught by the assertion that should catch it, and reverted. Co-Authored-By: Claude Code <noreply@anthropic.com> * style(which): apply rustfmt to the resolver taxonomy tests Two files in the previous commit were not run through `cargo fmt`. One was a wrapped binding rustfmt wants on a single line, and the other four were `find_byte`, `raw_string_end`, `names_token` and the importer filter in the boundary scan — which fmt also wanted wrapped, one of them past the line limit. Formatting only; no behaviour changes. Both suites still green: the boundary scan's one case, and the twenty-two telemetry cases. The Rust side was written without a `cargo fmt` pass while the Python side was formatted, which is how this reached a commit. Co-Authored-By: Claude Code <noreply@anthropic.com> * fix(which): drop the domain label aggregate and de-link the docs that named it The public `RESOLVE_ERROR_CATEGORY_VALUES` docstring linked to two private items, and `ResolveErrorCategory::ALL_LABELS` was read only from `#[cfg(test)]` code, so it was dead in the library build. Under `-D warnings` both were errors: two `rustdoc::private_intra_doc_links` and one `dead_code`. `ALL_LABELS` is removed rather than silenced, and the coverage it appeared to provide is replaced outright rather than assumed. Removing it was not free: the aggregate was the only thing that read the domain's own spellings, so nothing compared `ResolveErrorCategory::label()` with the telemetry labels any more. Probing that gap with a one-sided rename of the domain's spelling showed no test failed on the property -- only `tracing_capture` failed, incidentally, because it asserts a rendered `Display` string. A new case, `the_domain_spells_every_category_as_its_label`, now states the coupling directly, reaching the domain's spelling through the error that reports it. Clippy never reached the boundary-scan test in the previous cycle because the doc pass stopped first; the seven findings it then reported are fixed by narrowing rather than suppressing: byte indexing becomes `get`-based lookups and a `get_mut` range, the recursive walk loses a parameter it only forwarded, and the mask loop's blanking moves into a named helper. Liveness was re-proven by injection: prose naming telemetry is ignored, a real import in a non-permitted module is reported and named, and the new spelling case fails on the renamed domain with both spellings in its message. Observed but not addressed: `tracing_capture::the_span_and_event_carry_the_mode _and_nothing_else::case_1_auto` failed twice in 37 runs of this module, always with an empty event list and only under multi-threaded execution -- 22 clean runs single-threaded. The test, its `with_test_subscriber` helper, and the `cache.rs` that emits the event are all untouched by this commit, and the case was introduced earlier on this branch. It is not fixed here. Co-Authored-By: Claude Code <noreply@anthropic.com> * style(workflow-contracts): satisfy the df12 lint stage `make lint-python` runs five stages and the df12 pass was the one failing, with twenty findings across eight files. All eight are new on this branch. Fourteen were mechanical. Six modules carried `from __future__ import annotations`, which C9112 reports on a 3.14 baseline; they annotate module-level assignments rather than signatures, so the import bought nothing. Eight frozen dataclasses wanting R9111's slots are now `frozen=True, slots=True`, the idiom already used fifteen times under this directory. None of the classes is subclassed, so the slot layout carries no inheritance hazard. The last six are judgement calls rather than rewrites. `_lane_steps` was a trivial-alias wrapper: it forwarded to `clean_steps` with a docstring duplicated verbatim from it. R9110 is right that the wrapper adds nothing, so it is gone and its three call sites call `clean_steps` directly. That keeps the file's existing helper — the clean steps are already owned and freshly parsed per the callee's own contract, so no wrapper was buying isolation. The four bare asserts now carry messages stating what a failure means, not a restatement of the assertion. The one seeking a family by name says the generator must report the family it was sought by; the two `find` results say a drawn mutation must belong to a stated family and that the generator must reach a reportable edit; the span one says the occurrence at a given position must be the reference it came from, which is the correspondence the following span check reads. Resolver search behaviour, metric names, telemetry spellings, recorder admission, and every example and parametrized case are unchanged. Verified: `ruff format --check` and `ruff check` clean over the directory, the df12 stage at 10.00/10 and exit 0, and the two edited test modules passing under the `test-workflow-contracts` flags. Co-Authored-By: Claude Code <noreply@anthropic.com> * docs(workflow-contracts): document the lane mutation closures `make lint-python` reached its fifth and last stage for the first time and `interrogate --fail-under 100` failed at 98.9%: thirteen undocumented functions, all in one file, all the nested `apply` closure each mutation constructor returns. Earlier cycles stopped at the df12 stage, so stages four and five had never run. The missing docstrings are not new — the file arrived with the lane-contract property tests on this branch, and the gate simply had not reached them. Documented rather than excluded. The Makefile passes no `--ignore-nested-functions`, and across the 122 files interrogate holds at 100% there are fourteen nested closures and all fourteen are documented: `hoist_binstall_discovery.py::_raise`, the fakes and doubles under `scripts/tests`, and others. An exclusion flag would have been one line and would have broken a convention the rest of the tree keeps. The two pairs of textually identical closures are documented separately, because they are not the same edit. `misbound_input` rebinds an input the step already has; `smuggled_input` supplies one the contract requires to be absent. `reversed_gate` opens on the run the gate must skip; `weakened_gate` names the credential without gating on it. Each docstring says which. Docstrings only — no statement changed. Verified: interrogate 100.0% PASSED, ruff format --check and ruff check clean, pylint-pypy and the df12 pass both 10.00/10, ambrleaks exit 0, and the property test that drives all thirteen mutations passing. Co-Authored-By: Claude Code <noreply@anthropic.com> * refactor(workflow-contracts): share one undeclared-reference filter CodeScene reported `Expression.undeclared` and `Value.undeclared` as duplicated symbols. They held the same comprehension over different accessors, so the rule for which references are offending was written twice and could drift. Both now read through a private `_undeclared_references` helper. The two classes stay separate: they model different workflow forms and gather their references from different sources, and only the filter was shared. Ordering and repeat semantics are unchanged — the helper keeps what it is given, so a body naming the same undeclared variable twice still yields two occurrences in the order the text names them. The public behaviour and the property-test model are untouched; the existing properties exercise both methods and continue to pass. Co-Authored-By: Claude Code <noreply@anthropic.com> * refactor(workflow-contracts): state reportable once for the lane mutations CodeScene reported the repeated reportable `Mutation(...)` construction in this module. Eleven factories built the same shape, each restating that the contract must report the edit. They now go through a private `_reportable_mutation` helper. The two factories whose verdict is not fixed are left alone: `moved_step` decides `reportable` and `named` from `position != expected`, and `inserted_step` is the non-reportable control the accept direction is stated over. Names are taken ready-made rather than as variadic strings. The task described the helper as forwarding to `visible_names`, which holds for the eight factories that already call it, but not for `removed_step`, `duplicated_step` and `swapped_steps`: they pass a literal tuple and their pool includes the upload step, so `visible_names(name)` would have appended `CS_ACCESS_TOKEN` to four reachable instances. That widens the set the property test searches for an offender that names the change, which is a weaker assertion than the one the suite states — the opposite of what "property-test behaviour unchanged" asks for. Passing the names through keeps the tuples identical. The helper's callback annotation is `cabc.Callable`, matching the `Mutation` field it fills. The task specified `typ.Callable` to avoid a runtime dependency on `collections.abc`, which this module imports only under `TYPE_CHECKING`, but ruff's banned-api rule rejects the typing alias outright — `typing.Callable` is banned as a deprecated generic — and `make lint` stopped at that finding. The stated rationale does not hold either: `cabc` is already imported and used in this module, and the sibling `codescene_lane_edit_model` declares the same field the same way, so `typ.Callable` was the one spelling nothing else in the tree used. Under PEP 649 the annotation is never evaluated at definition time; a probe confirms the module imports and constructs mutations, and that `get_type_hints` fails only on the `TYPE_CHECKING`-only name shared by both modules. Verified by snapshotting family, description, reportable and named across 47 factory invocations before and after: byte-identical. The drawn distribution still reaches all eight families, and the property holds in its original unweakened form over 600 draws. Co-Authored-By: Claude Code <noreply@anthropic.com> * fix(review): address the five unresolved findings on the rebased head Each of the five is a distinct defect in the delta this branch adds, not a style preference. `docs/users-guide.md` claimed a series can be exported "without disclosing what a manifest asked for". That is false: the `cwd_mode` label is derived from exactly that, since a manifest writes `cwd_mode="workspace-recursive"` and the label is `workspace_recursive`. The "therefore" rested on an exclusion list the label set itself contradicts. The same sentence appears in `docs/developers-guide.md` and in the module doc of `src/stdlib/which/telemetry.rs`, which is the authority both guides derive from, so fixing one alone would leave a self-contradiction. All three now say what is true: the label records the requested policy as one of the fixed spellings rather than quoting the template, and command names, paths, workspace names, and `PATH`/`PATHEXT` values never reach a label. `collect_sources` matched repository paths against forward-slash literals while `Utf8Path::join` inserts the platform separator, so on Windows the walk would report `src/stdlib/which\cache.rs`, match none of the permitted paths, and report every source as unexpected. `contract_path` now names the separator, keeping one spelling of a repository path wherever the walk runs. The undefined-variable scan is now `_variable_offenders(upload)` rather than a trailing block of `_archive_offenders`, which is a function about the archive. It is aggregated after `_archive_offenders` so the report order is unchanged. `operands=PLAIN_OPERANDS.example()` evaluated to a bare `str` at decoration time, and the test body then ran `tuple(operands)`, splitting the example per character. The example is now a literal list. The fixed-name guard in `test_only_the_declared_variable_is_permitted` both drew an undeclared name the generator may legitimately produce and asserted that it had not: `_references_in_contexts(OTHER_NAMESPACE, VARIABLE_NAMES)` can draw `env.X`, for which `is_undeclared` is False, so the assertion failed the run. Removed. The `_assign_input` and `_set_upload_gate` helpers are factored so that only the closure is shared: each public constructor states its own family and description, so none is reduced to forwarding its arguments to another — which the df12 house lint rejects as a trivial alias wrapper. Co-Authored-By: Claude Code <noreply@anthropic.com> * fix(docs): normalise ADR-025 emphasis and correct the category mapping prose The branch's `*iden…
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At
a5765019the shared uploader's committedcli-manifest.jsonis the trustanchor for the CodeScene CLI archive, and the action rejects a non-empty
installer-checksumwith a hard failure rather than ignoring it. Main'scoverage upload is already pinned to that revision and still passes
vars.CODESCENE_CLI_SHA256into the input, so the upload step fails the momentthat repository variable holds anything.
Changes
.github/workflows/coverage-main.yml: theinstaller-checksumline goes. Itis not renamed to
archive-checksum, because that input can only repeat themanifest's own digest, so a repository variable feeding it would add nothing
and would break on every manifest bump.
tests/workflow_contracts/codescene_uploader_checksum_test.py: new, fourclauses.
No pin moves. The uploader reference was already at
a5765019, so there is noaction diff to report and no other input changed meaning. No
mode:value,token, or lane placement changed; the step still relies on the action's
uploaddefault, exactly as before.This repository has no
get-codescene-sha.yml, so nothing is deleted here. Thefourth clause is kept all the same: other repositories in the estate carry that
dispatch, and the clause is what keeps it from arriving.
Contract and its proof
Four clauses in
tests/workflow_contracts/codescene_uploader_checksum_test.py,each proved by one mutation alone, run through
make test-workflow-contracts's interpreter against the module directly ratherthan through the whole contract suite:
installer-checksum. Addinginstaller-checksum: "deadbeef"to the upload step fails this clause alone.CODESCENE_CLI_SHA256. Adding aCODESCENE_CLI_SHA256: ""env line to that job fails this clause alone.upload-codescene-coverage@reference is pinned toa5765019...,asserted as an allowlist rather than a floor, since a floor would require
ordering SHAs that cannot be computed from a checkout. Rewriting the pin to
a different forty-character revision fails this clause alone.
get-codescene-sha.ymldoes not exist. Creating a placeholder file of thatname that names no variable fails this clause alone.
Each clause asserts over a collection whose contents are checked first, so
deleting the workflow directory or the uploader reference fails the contract
rather than satisfying it vacuously. Both GitHub workflow extensions are read,
so a workflow written as
.yamlcannot escape the scan.Mechanical: removal of an input the action rejects, with no behaviour change on
the upload path and the contract as the proof. Merging on green without a
review round.
Summary by Sourcery
Remove the deprecated CodeScene installer checksum from coverage uploads and enforce the supported uploader configuration with workflow contracts.
Bug Fixes:
installer-checksuminput from the main CodeScene coverage upload so uploads no longer fail when the legacy checksum variable is populated.Enhancements:
Tests: