Add V-Model Extension Pack to catalog (#1640)

* Add V-Model Extension Pack to catalog

Second community extension: V-Model paired dev-spec and test-spec
generation with regulatory-grade traceability.

- 3 commands: requirements, acceptance, trace
- Deterministic coverage validation (regex-based, not AI)
- Targets: IEC 62304, ISO 26262, DO-178C, FDA 21 CFR Part 820
- Repository: https://github.com/leocamello/spec-kit-v-model
- Release: v0.1.0

* Fix catalog entry: provides as number, add timestamps and statistics

Address review feedback:
- provides.commands: array → number (3), add hooks (1)
- Add created_at and updated_at timestamps
- Add statistics block (downloads: 0, stars: 0)

* Address review: use catalog.community.json and add extensions README

Per maintainer feedback:
- Revert catalog.json to its original empty state (empty by design)
- Rename catalog.example.json → catalog.community.json
- Replace example entries with real V-Model Extension Pack entry
- Add extensions/README.md with community extensions table

extensions/README.md

@@ -0,0 +1,13 @@
+# Spec Kit Community Extensions
+
+Community-contributed extensions for [Spec Kit](https://github.com/github/spec-kit).
+
+## Available Extensions
+
+| Extension | Purpose | URL |
+|-----------|---------|-----|
+| V-Model Extension Pack | Enforces V-Model paired generation of development specs and test specs with full traceability | [spec-kit-v-model](https://github.com/leocamello/spec-kit-v-model) |
+
+## Adding Your Extension
+
+See the [Extension Publishing Guide](EXTENSION-PUBLISHING-GUIDE.md) for instructions on how to submit your extension to the community catalog.

extensions/catalog.community.json

@@ -0,0 +1,33 @@
+{
+  "schema_version": "1.0",
+  "updated_at": "2026-02-20T00:00:00Z",
+  "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
+  "extensions": {
+    "v-model": {
+      "name": "V-Model Extension Pack",
+      "id": "v-model",
+      "description": "Enforces V-Model paired generation of development specs and test specs with full traceability.",
+      "author": "leocamello",
+      "version": "0.1.0",
+      "download_url": "https://github.com/leocamello/spec-kit-v-model/archive/refs/tags/v0.1.0.zip",
+      "repository": "https://github.com/leocamello/spec-kit-v-model",
+      "homepage": "https://github.com/leocamello/spec-kit-v-model",
+      "documentation": "https://github.com/leocamello/spec-kit-v-model/blob/main/README.md",
+      "changelog": "https://github.com/leocamello/spec-kit-v-model/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.1.0"
+      },
+      "provides": {
+        "commands": 3,
+        "hooks": 1
+      },
+      "tags": ["v-model", "traceability", "testing", "compliance", "safety-critical"],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-02-20T00:00:00Z",
+      "updated_at": "2026-02-20T00:00:00Z"
+    }
+  }
+}

extensions/catalog.example.json

@@ -1,60 +0,0 @@
-{
-  "schema_version": "1.0",
-  "updated_at": "2026-02-03T00:00:00Z",
-  "catalog_url": "https://your-org.example.com/speckit/catalog.json",
-  "extensions": {
-    "jira": {
-      "name": "Jira Integration",
-      "id": "jira",
-      "description": "Create Jira Epics, Stories, and Issues from spec-kit artifacts",
-      "author": "Your Organization",
-      "version": "2.1.0",
-      "download_url": "https://github.com/your-org/spec-kit-jira/archive/refs/tags/v2.1.0.zip",
-      "repository": "https://github.com/your-org/spec-kit-jira",
-      "homepage": "https://github.com/your-org/spec-kit-jira",
-      "documentation": "https://github.com/your-org/spec-kit-jira/blob/main/README.md",
-      "changelog": "https://github.com/your-org/spec-kit-jira/blob/main/CHANGELOG.md",
-      "license": "MIT",
-      "requires": {
-        "speckit_version": ">=0.1.0",
-        "tools": [
-          {
-            "name": "atlassian",
-            "version": ">=1.0.0",
-            "required": true
-          }
-        ]
-      },
-      "provides": {
-        "commands": 3,
-        "hooks": 1
-      },
-      "tags": ["jira", "atlassian", "issue-tracking"],
-      "verified": true,
-      "downloads": 0,
-      "stars": 0,
-      "created_at": "2026-01-28T00:00:00Z",
-      "updated_at": "2026-02-03T00:00:00Z"
-    },
-    "linear": {
-      "name": "Linear Integration",
-      "id": "linear",
-      "description": "Sync specs and tasks with Linear issues",
-      "author": "Your Organization",
-      "version": "1.0.0",
-      "download_url": "https://github.com/your-org/spec-kit-linear/archive/refs/tags/v1.0.0.zip",
-      "repository": "https://github.com/your-org/spec-kit-linear",
-      "license": "MIT",
-      "requires": {
-        "speckit_version": ">=0.1.0"
-      },
-      "provides": {
-        "commands": 2
-      },
-      "tags": ["linear", "issue-tracking"],
-      "verified": false,
-      "created_at": "2026-01-30T00:00:00Z",
-      "updated_at": "2026-01-30T00:00:00Z"
-    }
-  }
-}

templates/commands/plan.md

@@ -75,10 +75,11 @@ You **MUST** consider the user input before proceeding (if not empty).
    - Validation rules from requirements
    - State transitions if applicable
 
-2. **Generate API contracts** from functional requirements:
+2. **Define interface contracts** (if project has external interfaces) → `/contracts/`:
-   - For each user action → endpoint
+   - Identify what interfaces the project exposes to users or other systems
-   - Use standard REST/GraphQL patterns
+   - Document the contract format appropriate for the project type
-   - Output OpenAPI/GraphQL schema to `/contracts/`
+   - Examples: public APIs for libraries, command schemas for CLI tools, endpoints for web services, grammars for parsers, UI contracts for applications
+   - Skip if project is purely internal (build scripts, one-off tools, etc.)
 
 3. **Agent context update**:
    - Run `{AGENT_SCRIPT}`

templates/commands/specify.md

@@ -235,7 +235,7 @@ When creating this spec from a user prompt:
 - Performance targets: Standard web/mobile app expectations unless specified
 - Error handling: User-friendly messages with appropriate fallbacks
 - Authentication method: Standard session-based or OAuth2 for web apps
-- Integration patterns: RESTful APIs unless specified otherwise
+- Integration patterns: Use project-appropriate patterns (REST/GraphQL for web services, function calls for libraries, CLI args for tools, etc.)
 
 ### Success Criteria Guidelines
 

templates/commands/tasks.md

@@ -28,14 +28,14 @@ You **MUST** consider the user input before proceeding (if not empty).
 
 2. **Load design documents**: Read from FEATURE_DIR:
    - **Required**: plan.md (tech stack, libraries, structure), spec.md (user stories with priorities)
-   - **Optional**: data-model.md (entities), contracts/ (API endpoints), research.md (decisions), quickstart.md (test scenarios)
+   - **Optional**: data-model.md (entities), contracts/ (interface contracts), research.md (decisions), quickstart.md (test scenarios)
    - Note: Not all projects have all documents. Generate tasks based on what's available.
 
 3. **Execute task generation workflow**:
    - Load plan.md and extract tech stack, libraries, project structure
    - Load spec.md and extract user stories with their priorities (P1, P2, P3, etc.)
    - If data-model.md exists: Extract entities and map to user stories
-   - If contracts/ exists: Map endpoints to user stories
+   - If contracts/ exists: Map interface contracts to user stories
    - If research.md exists: Extract decisions for setup tasks
    - Generate tasks organized by user story (see Task Generation Rules below)
    - Generate dependency graph showing user story completion order
@@ -112,13 +112,13 @@ Every task MUST strictly follow this format:
    - Map all related components to their story:
      - Models needed for that story
      - Services needed for that story
-     - Endpoints/UI needed for that story
+     - Interfaces/UI needed for that story
      - If tests requested: Tests specific to that story
    - Mark story dependencies (most stories should be independent)
 
 2. **From Contracts**:
-   - Map each contract/endpoint → to the user story it serves
+   - Map each interface contract → to the user story it serves
-   - If tests requested: Each contract → contract test task [P] before implementation in that story's phase
+   - If tests requested: Each interface contract → contract test task [P] before implementation in that story's phase
 
 3. **From Data Model**:
    - Map each entity to the user story(ies) that need it

templates/plan-template.md

@@ -22,7 +22,7 @@
 **Storage**: [if applicable, e.g., PostgreSQL, CoreData, files or N/A]  
 **Testing**: [e.g., pytest, XCTest, cargo test or NEEDS CLARIFICATION]  
 **Target Platform**: [e.g., Linux server, iOS 15+, WASM or NEEDS CLARIFICATION]
-**Project Type**: [single/web/mobile - determines source structure]  
+**Project Type**: [e.g., library/cli/web-service/mobile-app/compiler/desktop-app or NEEDS CLARIFICATION]  
 **Performance Goals**: [domain-specific, e.g., 1000 req/s, 10k lines/sec, 60 fps or NEEDS CLARIFICATION]  
 **Constraints**: [domain-specific, e.g., <200ms p95, <100MB memory, offline-capable or NEEDS CLARIFICATION]  
 **Scale/Scope**: [domain-specific, e.g., 10k users, 1M LOC, 50 screens or NEEDS CLARIFICATION]