chore: add .pre-commit-config.yaml and fix trailing whitespace

.github/CODEOWNERS

@@ -5,4 +5,3 @@
 /extensions/catalog.community.json @mnriem
 /integrations/catalog.community.json @mnriem
 /presets/catalog.community.json @mnriem
-

.github/ISSUE_TEMPLATE/agent_request.yml

@@ -7,7 +7,7 @@ body:
     attributes:
       value: |
         Thanks for requesting a new agent! Before submitting, please check if the agent is already supported.
-        
+
         **Currently supported agents**: Amp, Antigravity, Auggie CLI, Claude Code, Cline, CodeBuddy, Codex CLI, Cursor, Devin for Terminal, Firebender, Forge, Gemini CLI, GitHub Copilot, Goose, Hermes Agent, IBM Bob, Junie, Kilo Code, Kimi Code, Kiro CLI, Lingma, Mistral Vibe, Oh My Pi, opencode, Pi Coding Agent, Qoder CLI, Qwen Code, RovoDev ACLI, SHAI, Tabnine CLI, Trae, ZCode, Zed
 
   - type: input

.github/ISSUE_TEMPLATE/extension_submission.yml

@@ -7,7 +7,7 @@ body:
     attributes:
       value: |
         Thanks for contributing an extension! This template helps you submit your extension to the community catalog.
-        
+
         **Before submitting:**
         - Review the [Extension Publishing Guide](https://github.com/github/spec-kit/blob/main/extensions/EXTENSION-PUBLISHING-GUIDE.md)
         - Ensure your extension has a valid `extension.yml` manifest
@@ -209,9 +209,9 @@ body:
         **Tested on:**
         - macOS 14.0 with Spec Kit v0.1.0
         - Linux Ubuntu 22.04 with Spec Kit v0.1.0
-        
+
         **Test project:** [Link or description]
-        
+
         **Test scenarios:**
         1. Installed extension
         2. Configured settings
@@ -230,7 +230,7 @@ body:
         ```bash
         # Install extension
         specify extension add <extension-name> --from https://github.com/your-org/spec-kit-your-extension/archive/refs/tags/v1.0.0.zip
-        
+
         # Use a command
         /speckit.your-extension.command-name arg1 arg2
         ```

.github/ISSUE_TEMPLATE/preset_submission.yml

@@ -7,7 +7,7 @@ body:
     attributes:
       value: |
         Thanks for contributing a preset! This template helps you submit your preset to the community catalog.
-        
+
         **Before submitting:**
         - Review the [Preset Publishing Guide](https://github.com/github/spec-kit/blob/main/presets/PUBLISHING.md)
         - Ensure your preset has a valid `preset.yml` manifest

.github/PULL_REQUEST_TEMPLATE.md

@@ -19,4 +19,3 @@
 - [ ] I **did** use AI assistance (describe below)
 
 <!-- If you used AI, briefly describe how (e.g., "Code generated by Copilot", "Consulted ChatGPT for approach"): -->
-

.github/workflows/stale.yml

@@ -20,24 +20,24 @@ jobs:
           days-before-stale: 150
           # Days of inactivity before a stale issue or PR is closed (after being marked stale)
           days-before-close: 30
-          
+
           # Stale issue settings
           stale-issue-message: 'This issue has been automatically marked as stale because it has not had any activity for 150 days. It will be closed in 30 days if no further activity occurs.'
           close-issue-message: 'This issue has been automatically closed due to inactivity (180 days total). If you believe this issue is still relevant, please reopen it or create a new issue.'
           stale-issue-label: 'stale'
-          
+
           # Stale PR settings
           stale-pr-message: 'This pull request has been automatically marked as stale because it has not had any activity for 150 days. It will be closed in 30 days if no further activity occurs.'
           close-pr-message: 'This pull request has been automatically closed due to inactivity (180 days total). If you believe this PR is still relevant, please reopen it or create a new PR.'
           stale-pr-label: 'stale'
-          
+
           # Exempt issues and PRs with these labels from being marked as stale
           exempt-issue-labels: 'pinned,security'
           exempt-pr-labels: 'pinned,security'
-          
+
           # Only issues or PRs with all of these labels are checked
           # Leave empty to check all issues and PRs
           any-of-labels: ''
-          
+
           # Operations per run (helps avoid rate limits)
           operations-per-run: 250

.markdownlint-cli2.jsonc

@@ -26,4 +26,4 @@
   "ignores": [
     ".genreleases/"
   ]
-}
+}

.pre-commit-config.yaml

@@ -0,0 +1,12 @@
+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v6.0.0
+    hooks:
+      - id: check-executables-have-shebangs
+      - id: check-yaml
+        exclude: \.lock\.yml$
+      - id: end-of-file-fixer
+        exclude: \.lock\.yml$
+      - id: trailing-whitespace
+        exclude: \.lock\.yml$

LICENSE

@@ -19,4 +19,3 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
-

docs/.gitignore

@@ -6,4 +6,3 @@ obj/
 # Temporary files
 *.tmp
 *.log
-

extensions/catalog.json

@@ -48,4 +48,4 @@
       ]
     }
   }
-}
+}

extensions/selftest/commands/selftest.md

@@ -48,7 +48,7 @@ cat .specify/extensions/.registry/$ARGUMENTS.json
 
 ### Step 4: Verification Report
 
-Analyze the standard output of the three steps. 
+Analyze the standard output of the three steps.
 Generate a terminal-style test output format detailing the results of discovery, installation, and registration. Return this directly to the user.
 
 Example output format:

newsletters/2026-March.md

@@ -76,5 +76,3 @@ Areas under discussion or in progress for future development:
 - **Continued agent expansion** -- seven new agents were added in March alone. The agent-agnostic design means support for emerging tools can be added by anyone. [\[byteiota.com\]](https://byteiota.com/spec-driven-development-kills-vibe-coding-march-2026/)
 - **Experience simplification** -- the preset system, custom workflows, and growing walkthrough library lower the learning curve, but extension discoverability will need a more robust solution as the catalog grows. [\[github.com\]](https://github.com/github/spec-kit/releases)
 - **Toward a stable release** -- nine releases in one month reflects pre-1.0 momentum. Reaching 1.0 will require stabilizing the extension and preset APIs and ensuring backward compatibility across the agent and extension surface area. [\[github.com\]](https://github.com/github/spec-kit/blob/main/newsletters/2026-February.md)
-
-

pyproject.toml

@@ -83,4 +83,3 @@ extend-select = [
     "S604",  # call-with-shell-equals-true
     "S605",  # start-process-with-a-shell
 ]
-

scripts/bash/check-prerequisites.sh

@@ -57,13 +57,13 @@ OPTIONS:
 EXAMPLES:
   # Check task prerequisites (plan.md required)
   ./check-prerequisites.sh --json
-  
+
   # Check implementation prerequisites (plan.md + tasks.md required)
   ./check-prerequisites.sh --json --require-tasks --include-tasks
-  
+
   # Get feature paths only (no validation)
   ./check-prerequisites.sh --paths-only
-  
+
 EOF
             exit 0
             ;;
@@ -182,13 +182,13 @@ else
     # Text output
     echo "FEATURE_DIR:$FEATURE_DIR"
     echo "AVAILABLE_DOCS:"
-    
+
     # Show status of each potential document
     check_file "$RESEARCH" "research.md"
     check_file "$DATA_MODEL" "data-model.md"
     check_dir "$CONTRACTS_DIR" "contracts/"
     check_file "$QUICKSTART" "quickstart.md"
-    
+
     if $INCLUDE_TASKS; then
         check_file "$TASKS" "tasks.md"
     fi

scripts/bash/create-new-feature.sh

@@ -94,7 +94,7 @@ fi
 get_highest_from_specs() {
     local specs_dir="$1"
     local highest=0
-    
+
     if [ -d "$specs_dir" ]; then
         for dir in "$specs_dir"/*; do
             [ -d "$dir" ] || continue
@@ -109,7 +109,7 @@ get_highest_from_specs() {
             fi
         done
     fi
-    
+
     echo "$highest"
 }
 
@@ -135,19 +135,19 @@ fi
 # Function to generate branch name with stop word filtering and length filtering
 generate_branch_name() {
     local description="$1"
-    
+
     # Common stop words to filter out
     local stop_words="^(i|a|an|the|to|for|of|in|on|at|by|with|from|is|are|was|were|be|been|being|have|has|had|do|does|did|will|would|should|could|can|may|might|must|shall|this|that|these|those|my|your|our|their|want|need|add|get|set)$"
-    
+
     # Convert to lowercase and split into words
     local clean_name=$(printf '%s' "$description" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9]/ /g')
-    
+
     # Filter words: remove stop words and words shorter than 3 chars (unless they're uppercase acronyms in original)
     local meaningful_words=()
     for word in $clean_name; do
         # Skip empty words
         [ -z "$word" ] && continue
-        
+
         # Keep words that are NOT stop words AND (length >= 3 OR are potential acronyms)
         if ! echo "$word" | grep -qiE "$stop_words"; then
             if [ ${#word} -ge 3 ]; then
@@ -160,12 +160,12 @@ generate_branch_name() {
             fi
         fi
     done
-    
+
     # If we have meaningful words, use first 3-4 of them
     if [ ${#meaningful_words[@]} -gt 0 ]; then
         local max_words=3
         if [ ${#meaningful_words[@]} -eq 4 ]; then max_words=4; fi
-        
+
         local result=""
         local count=0
         for word in "${meaningful_words[@]}"; do
@@ -221,15 +221,15 @@ if [ ${#BRANCH_NAME} -gt $MAX_BRANCH_LENGTH ]; then
     # Account for prefix length: timestamp (15) + hyphen (1) = 16, or sequential (3) + hyphen (1) = 4
     PREFIX_LENGTH=$(( ${#FEATURE_NUM} + 1 ))
     MAX_SUFFIX_LENGTH=$((MAX_BRANCH_LENGTH - PREFIX_LENGTH))
-    
+
     # Truncate suffix at word boundary if possible
     TRUNCATED_SUFFIX=$(echo "$BRANCH_SUFFIX" | cut -c1-$MAX_SUFFIX_LENGTH)
     # Remove trailing hyphen if truncation created one
     TRUNCATED_SUFFIX=$(echo "$TRUNCATED_SUFFIX" | sed 's/-$//')
-    
+
     ORIGINAL_BRANCH_NAME="$BRANCH_NAME"
     BRANCH_NAME="${FEATURE_NUM}-${TRUNCATED_SUFFIX}"
-    
+
     >&2 echo "[specify] Warning: Branch name exceeded GitHub's 244-byte limit"
     >&2 echo "[specify] Original: $ORIGINAL_BRANCH_NAME (${#ORIGINAL_BRANCH_NAME} bytes)"
     >&2 echo "[specify] Truncated to: $BRANCH_NAME (${#BRANCH_NAME} bytes)"

scripts/bash/setup-plan.sh

@@ -8,17 +8,17 @@ ARGS=()
 
 for arg in "$@"; do
     case "$arg" in
-        --json) 
-            JSON_MODE=true 
+        --json)
+            JSON_MODE=true
             ;;
-        --help|-h) 
+        --help|-h)
             echo "Usage: $0 [--json]"
             echo "  --json    Output results in JSON format"
             echo "  --help    Show this help message"
-            exit 0 
+            exit 0
             ;;
-        *) 
-            ARGS+=("$arg") 
+        *)
+            ARGS+=("$arg")
             ;;
     esac
 done
@@ -77,8 +77,7 @@ if $JSON_MODE; then
     fi
 else
     echo "FEATURE_SPEC: $FEATURE_SPEC"
-    echo "IMPL_PLAN: $IMPL_PLAN" 
+    echo "IMPL_PLAN: $IMPL_PLAN"
     echo "SPECS_DIR: $FEATURE_DIR"
     echo "BRANCH: $CURRENT_BRANCH"
 fi
-

scripts/powershell/check-prerequisites.ps1

@@ -42,10 +42,10 @@ OPTIONS:
 EXAMPLES:
   # Check task prerequisites (plan.md required)
   .\check-prerequisites.ps1 -Json
-  
+
   # Check implementation prerequisites (plan.md + tasks.md required)
   .\check-prerequisites.ps1 -Json -RequireTasks -IncludeTasks
-  
+
   # Get feature paths only (no validation)
   .\check-prerequisites.ps1 -PathsOnly
 
@@ -118,35 +118,35 @@ if (Test-Path $paths.RESEARCH) { $docs += 'research.md' }
 if (Test-Path $paths.DATA_MODEL) { $docs += 'data-model.md' }
 
 # Check contracts directory (only if it exists and has files)
-if ((Test-Path $paths.CONTRACTS_DIR) -and (Get-ChildItem -Path $paths.CONTRACTS_DIR -ErrorAction SilentlyContinue | Select-Object -First 1)) { 
-    $docs += 'contracts/' 
+if ((Test-Path $paths.CONTRACTS_DIR) -and (Get-ChildItem -Path $paths.CONTRACTS_DIR -ErrorAction SilentlyContinue | Select-Object -First 1)) {
+    $docs += 'contracts/'
 }
 
 if (Test-Path $paths.QUICKSTART) { $docs += 'quickstart.md' }
 
 # Include tasks.md if requested and it exists
-if ($IncludeTasks -and (Test-Path $paths.TASKS)) { 
-    $docs += 'tasks.md' 
+if ($IncludeTasks -and (Test-Path $paths.TASKS)) {
+    $docs += 'tasks.md'
 }
 
 # Output results
 if ($Json) {
     # JSON output
-    [PSCustomObject]@{ 
+    [PSCustomObject]@{
         FEATURE_DIR = $paths.FEATURE_DIR
-        AVAILABLE_DOCS = $docs 
+        AVAILABLE_DOCS = $docs
     } | ConvertTo-Json -Compress
 } else {
     # Text output
     Write-Output "FEATURE_DIR:$($paths.FEATURE_DIR)"
     Write-Output "AVAILABLE_DOCS:"
-    
+
     # Show status of each potential document
     Test-FileExists -Path $paths.RESEARCH -Description 'research.md' | Out-Null
     Test-FileExists -Path $paths.DATA_MODEL -Description 'data-model.md' | Out-Null
     Test-DirHasFiles -Path $paths.CONTRACTS_DIR -Description 'contracts/' | Out-Null
     Test-FileExists -Path $paths.QUICKSTART -Description 'quickstart.md' | Out-Null
-    
+
     if ($IncludeTasks) {
         Test-FileExists -Path $paths.TASKS -Description 'tasks.md' | Out-Null
     }

scripts/powershell/common.ps1

@@ -191,7 +191,7 @@ function Get-FeaturePathsEnv {
         [Console]::Error.WriteLine("ERROR: Feature directory not found. Set SPECIFY_FEATURE_DIRECTORY or run the specify command to create .specify/feature.json.")
         exit 1
     }
-    
+
     # When no branch context exists (no SPECIFY_FEATURE, feature resolved via
     # SPECIFY_FEATURE_DIRECTORY or feature.json), fall back to the feature
     # directory basename so CURRENT_BRANCH is a usable identifier rather than

scripts/powershell/setup-plan.ps1

@@ -63,7 +63,7 @@ if (Test-Path $paths.IMPL_PLAN -PathType Leaf) {
 
 # Output results
 if ($Json) {
-    $result = [PSCustomObject]@{ 
+    $result = [PSCustomObject]@{
         FEATURE_SPEC = $paths.FEATURE_SPEC
         IMPL_PLAN = $paths.IMPL_PLAN
         SPECS_DIR = $paths.FEATURE_DIR

spec-kit.code-workspace

@@ -5,4 +5,4 @@
 		}
 	],
 	"settings": {}
-}
+}

src/specify_cli/integrations/devin/__init__.py

@@ -62,4 +62,4 @@ def options(cls) -> list[IntegrationOption]:
                 default=True,
                 help="Install as agent skills (default for Devin)",
             ),
-        ]
+        ]