radius-project · brooke-hamilton · Mar 14, 2026 · Mar 14, 2026 · Mar 14, 2026
@@ -24,7 +24,7 @@ Identify inconsistencies, duplications, ambiguities, and underspecified items ac
 
 ### 1. Initialize Analysis Context
 
-Run `.specify/scripts/bash/check-prerequisites.sh --json --require-tasks --include-tasks` (Linux or macOS) or `.specify/scripts/powershell/check-prerequisites.ps1 -Json -RequireTasks -IncludeTasks` (Windows) once from repo root and parse JSON for FEATURE_DIR and AVAILABLE_DOCS. Derive absolute paths:
+Run `.specify/scripts/bash/check-prerequisites.sh --json --require-tasks --include-tasks` once from repo root and parse JSON for FEATURE_DIR and AVAILABLE_DOCS. Derive absolute paths:
 
 - SPEC = FEATURE_DIR/spec.md
 - PLAN = FEATURE_DIR/plan.md

@@ -91,9 +91,10 @@ You **MUST** consider the user input before proceeding (if not empty).
    - Generate unique checklist filename:
      - Use short, descriptive name based on domain (e.g., `ux.md`, `api.md`, `security.md`)
      - Format: `[domain].md`
-     - If file exists, append to existing file
-   - Number items sequentially starting from CHK001
-   - Each `/speckit.checklist` run creates a NEW file (never overwrites existing checklists)
+   - File handling behavior:
+     - If file does NOT exist: Create new file and number items starting from CHK001
+     - If file exists: Append new items to existing file, continuing from the last CHK ID (e.g., if last item is CHK015, start new items at CHK016)
+   - Never delete or replace existing checklist content - always preserve and append
 
    **CORE PRINCIPLE - Test the Requirements, Not the Implementation**:
    Every checklist item MUST evaluate the REQUIREMENTS THEMSELVES for:
@@ -205,13 +206,13 @@ You **MUST** consider the user input before proceeding (if not empty).
 
 6. **Structure Reference**: Generate the checklist following the canonical template in `.specify/templates/checklist-template.md` for title, meta section, category headings, and ID formatting. If template is unavailable, use: H1 title, purpose/created meta lines, `##` category sections containing `- [ ] CHK### <requirement item>` lines with globally incrementing IDs starting at CHK001.
 
-7. **Report**: Output full path to created checklist, item count, and remind user that each run creates a new file. Summarize:
+7. **Report**: Output full path to checklist file, item count, and summarize whether the run created a new file or appended to an existing one. Summarize:
    - Focus areas selected
    - Depth level
    - Actor/timing
    - Any explicit user-specified must-have items incorporated
 
-**Important**: Each `/speckit.checklist` command invocation creates a checklist file using short, descriptive names unless file already exists. This allows:
+**Important**: Each `/speckit.checklist` command invocation uses a short, descriptive checklist filename and either creates a new file or appends to an existing one. This allows:
 
 - Multiple checklists of different types (e.g., `ux.md`, `test.md`, `security.md`)
 - Simple, memorable filenames that indicate checklist purpose

@@ -86,7 +86,7 @@ Execution steps:
    - Information is better deferred to planning phase (note internally)
 
 3. Generate (internally) a prioritized queue of candidate clarification questions (maximum 5). Do NOT output them all at once. Apply these constraints:
-    - Maximum of 10 total questions across the whole session.
+    - Maximum of 5 total questions across the whole session.
     - Each question must be answerable with EITHER:
        - A short multiple‑choice selection (2–5 distinct, mutually exclusive options), OR
        - A one-word / short‑phrase answer (explicitly constrain: "Answer in <=5 words").

@@ -18,9 +18,11 @@ You **MUST** consider the user input before proceeding (if not empty).
 
 You are updating the project constitution at `.specify/memory/constitution.md`. This file is a TEMPLATE containing placeholder tokens in square brackets (e.g. `[PROJECT_NAME]`, `[PRINCIPLE_1_NAME]`). Your job is to (a) collect/derive concrete values, (b) fill the template precisely, and (c) propagate any amendments across dependent artifacts.
 
+**Note**: If `.specify/memory/constitution.md` does not exist yet, it should have been initialized from `.specify/templates/constitution-template.md` during project setup. If it's missing, copy the template first.
+
 Follow this execution flow:
 
-1. Load the existing constitution template at `.specify/memory/constitution.md`.
+1. Load the existing constitution at `.specify/memory/constitution.md`.
    - Identify every placeholder token of the form `[ALL_CAPS_IDENTIFIER]`.
    **IMPORTANT**: The user might require less or more principles than the ones used in the template. If a number is specified, respect that - follow the general template. You will update the doc accordingly.
 

@@ -10,6 +10,40 @@ $ARGUMENTS
 
 You **MUST** consider the user input before proceeding (if not empty).
 
+## Pre-Execution Checks
+
+**Check for extension hooks (before implementation)**:
+- Check if `.specify/extensions.yml` exists in the project root.
+- If it exists, read it and look for entries under the `hooks.before_implement` key
+- If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
+- Filter to only hooks where `enabled: true`
+- For each remaining hook, do **not** attempt to interpret or evaluate hook `condition` expressions:
+  - If the hook has no `condition` field, or it is null/empty, treat the hook as executable
+  - If the hook defines a non-empty `condition`, skip the hook and leave condition evaluation to the HookExecutor implementation
+- For each executable hook, output the following based on its `optional` flag:
+  - **Optional hook** (`optional: true`):
+    ```
+    ## Extension Hooks
+
+    **Optional Pre-Hook**: {extension}
+    Command: `/{command}`
+    Description: {description}
+
+    Prompt: {prompt}
+    To execute: `/{command}`
+    ```
+  - **Mandatory hook** (`optional: false`):
+    ```
+    ## Extension Hooks
+
+    **Automatic Pre-Hook**: {extension}
+    Executing: `/{command}`
+    EXECUTE_COMMAND: {command}
+
+    Wait for the result of the hook command before proceeding to the Outline.
+    ```
+- If no hooks are registered or `.specify/extensions.yml` does not exist, skip silently
+
 ## Outline
 
 1. Run `.specify/scripts/bash/check-prerequisites.sh --json --require-tasks --include-tasks` (Linux or macOS) or `.specify/scripts/powershell/check-prerequisites.ps1 -Json -RequireTasks -IncludeTasks` (Windows) from repo root and parse FEATURE_DIR and AVAILABLE_DOCS list. All paths must be absolute. For single quotes in args like "I'm Groot", use escape syntax: e.g 'I'\''m Groot' (or double-quote if possible: "I'm Groot").
@@ -85,7 +119,7 @@ You **MUST** consider the user input before proceeding (if not empty).
    - **Rust**: `target/`, `debug/`, `release/`, `*.rs.bk`, `*.rlib`, `*.prof*`, `.idea/`, `*.log`, `.env*`
    - **Kotlin**: `build/`, `out/`, `.gradle/`, `.idea/`, `*.class`, `*.jar`, `*.iml`, `*.log`, `.env*`
    - **C++**: `build/`, `bin/`, `obj/`, `out/`, `*.o`, `*.so`, `*.a`, `*.exe`, `*.dll`, `.idea/`, `*.log`, `.env*`
-   - **C**: `build/`, `bin/`, `obj/`, `out/`, `*.o`, `*.a`, `*.so`, `*.exe`, `Makefile`, `config.log`, `.idea/`, `*.log`, `.env*`
+   - **C**: `build/`, `bin/`, `obj/`, `out/`, `*.o`, `*.a`, `*.so`, `*.exe`, `*.dll`, `autom4te.cache/`, `config.status`, `config.log`, `.idea/`, `*.log`, `.env*`
    - **Swift**: `.build/`, `DerivedData/`, `*.swiftpm/`, `Packages/`
    - **R**: `.Rproj.user/`, `.Rhistory`, `.RData`, `.Ruserdata`, `*.Rproj`, `packrat/`, `renv/`
    - **Universal**: `.DS_Store`, `Thumbs.db`, `*.tmp`, `*.swp`, `.vscode/`, `.idea/`
@@ -133,3 +167,32 @@ You **MUST** consider the user input before proceeding (if not empty).
    - Report final status with summary of completed work
 
 Note: This command assumes a complete task breakdown exists in tasks.md. If tasks are incomplete or missing, suggest running `/speckit.tasks` first to regenerate the task list.
+
+10. **Check for extension hooks**: After completion validation, check if `.specify/extensions.yml` exists in the project root.
+    - If it exists, read it and look for entries under the `hooks.after_implement` key
+    - If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
+    - Filter to only hooks where `enabled: true`
+    - For each remaining hook, do **not** attempt to interpret or evaluate hook `condition` expressions:
+      - If the hook has no `condition` field, or it is null/empty, treat the hook as executable
+      - If the hook defines a non-empty `condition`, skip the hook and leave condition evaluation to the HookExecutor implementation
+    - For each executable hook, output the following based on its `optional` flag:
+      - **Optional hook** (`optional: true`):
+        ```
+        ## Extension Hooks
+
+        **Optional Hook**: {extension}
+        Command: `/{command}`
+        Description: {description}
+
+        Prompt: {prompt}
+        To execute: `/{command}`
+        ```
+      - **Mandatory hook** (`optional: false`):
+        ```
+        ## Extension Hooks
+
+        **Automatic Hook**: {extension}
+        Executing: `/{command}`
+        EXECUTE_COMMAND: {command}
+        ```
+    - If no hooks are registered or `.specify/extensions.yml` does not exist, skip silently
@@ -69,10 +69,11 @@ 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:
-   - For each user action → endpoint
-   - Use standard REST/GraphQL patterns
-   - Output OpenAPI/GraphQL schema to `/contracts/`
+2. **Define interface contracts** (if project has external interfaces) → `/contracts/`:
+   - Identify what interfaces the project exposes to users or other systems
+   - Document the contract format appropriate for the project type
+   - 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 `.specify/scripts/bash/update-agent-context.sh copilot` (Linux or macOS) or `.specify/scripts/powershell/update-agent-context.ps1 -AgentType copilot` (Windows)

@@ -36,33 +36,14 @@ Given that feature description, do this:
      - "Create a dashboard for analytics" → "analytics-dashboard"
      - "Fix payment processing timeout bug" → "fix-payment-timeout"
 
-2. **Check for existing branches before creating new one**:
+2. **Create the feature branch** by running the script with `--short-name` (and `--json`), and do NOT pass `--number` (the script auto-detects the next globally available number across all branches and spec directories):
 
-   a. First, fetch all remote branches to ensure we have the latest information:
-
-      ```bash
-      git fetch --all --prune
-      ```
-
-   b. Find the highest feature number across all sources for the short-name:
-      - Remote branches: `git ls-remote --heads origin | grep -E 'refs/heads/[0-9]+-<short-name>$'`
-      - Local branches: `git branch | grep -E '^[* ]*[0-9]+-<short-name>$'`
-      - Specs directories: Check for directories matching `specs/[0-9]+-<short-name>`
-
-   c. Determine the next available number:
-      - Extract all numbers from all three sources
-      - Find the highest number N
-      - Use N+1 for the new branch number
-
-   d. Run the script `.specify/scripts/bash/create-new-feature.sh --json "$ARGUMENTS"` (Linux or macOS) or `.specify/scripts/powershell/create-new-feature.ps1 -Json "$ARGUMENTS"` (Windows) with the calculated number and short-name:
-      - Pass `--number N+1` and `--short-name "your-short-name"` along with the feature description
-      - Bash example: `.specify/scripts/bash/create-new-feature.sh --json "$ARGUMENTS" --number 5 --short-name "user-auth" "Add user authentication"`
-      - PowerShell example: `.specify/scripts/powershell/create-new-feature.ps1 -Json "$ARGUMENTS" -Json -Number 5 -ShortName "user-auth" "Add user authentication"`
+   - Bash example: `.specify/scripts/bash/create-new-feature.sh "$ARGUMENTS" --json --short-name "user-auth" "Add user authentication"`
+   - PowerShell example: `.specify/scripts/bash/create-new-feature.sh "$ARGUMENTS" -Json -ShortName "user-auth" "Add user authentication"`
 
    **IMPORTANT**:
-   - Check all three sources (remote branches, local branches, specs directories) to find the highest number
-   - Only match branches/directories with the exact short-name pattern
-   - If no existing branches/directories found with this short-name, start with number 1
+   - Do NOT pass `--number` — the script determines the correct next number automatically
+   - Always include the JSON flag (`--json` for Bash, `-Json` for PowerShell) so the output can be parsed reliably
    - You must only ever run this script once per feature
    - The JSON is provided in the terminal as output - always refer to it to get the actual content you're looking for
    - The JSON output will contain BRANCH_NAME and SPEC_FILE paths
@@ -145,7 +126,7 @@ Given that feature description, do this:
 
    c. **Handle Validation Results**:
 
-      - **If all items pass**: Mark checklist complete and proceed to step 6
+      - **If all items pass**: Mark checklist complete and proceed to step 7
 
       - **If items fail (excluding [NEEDS CLARIFICATION])**:
         1. List the failing items and specific issues
@@ -194,8 +175,6 @@ Given that feature description, do this:
 
 **NOTE:** The script creates and checks out the new branch and initializes the spec file before writing.
 
-## General Guidelines
-
 ## Quick Guidelines
 
 - Focus on **WHAT** users need and **WHY**.
@@ -232,7 +211,7 @@ 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
 

@@ -19,20 +19,54 @@ $ARGUMENTS
 
 You **MUST** consider the user input before proceeding (if not empty).
 
+## Pre-Execution Checks
+
+**Check for extension hooks (before tasks generation)**:
+- Check if `.specify/extensions.yml` exists in the project root.
+- If it exists, read it and look for entries under the `hooks.before_tasks` key
+- If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
+- Filter to only hooks where `enabled: true`
+- For each remaining hook, do **not** attempt to interpret or evaluate hook `condition` expressions:
+  - If the hook has no `condition` field, or it is null/empty, treat the hook as executable
+  - If the hook defines a non-empty `condition`, skip the hook and leave condition evaluation to the HookExecutor implementation
+- For each executable hook, output the following based on its `optional` flag:
+  - **Optional hook** (`optional: true`):
+    ```
+    ## Extension Hooks
+
+    **Optional Pre-Hook**: {extension}
+    Command: `/{command}`
+    Description: {description}
+
+    Prompt: {prompt}
+    To execute: `/{command}`
+    ```
+  - **Mandatory hook** (`optional: false`):
+    ```
+    ## Extension Hooks
+
+    **Automatic Pre-Hook**: {extension}
+    Executing: `/{command}`
+    EXECUTE_COMMAND: {command}
+
+    Wait for the result of the hook command before proceeding to the Outline.
+    ```
+- If no hooks are registered or `.specify/extensions.yml` does not exist, skip silently
+
 ## Outline
 
 1. **Setup**: Run `.specify/scripts/bash/check-prerequisites.sh --json` (Linux or macOS) or `.specify/scripts/powershell/check-prerequisites.ps1 -Json` (Windows) from repo root and parse FEATURE_DIR and AVAILABLE_DOCS list. All paths must be absolute. For single quotes in args like "I'm Groot", use escape syntax: e.g 'I'\''m Groot' (or double-quote if possible: "I'm Groot").
 
 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
@@ -60,6 +94,35 @@ You **MUST** consider the user input before proceeding (if not empty).
    - Suggested MVP scope (typically just User Story 1)
    - Format validation: Confirm ALL tasks follow the checklist format (checkbox, ID, labels, file paths)
 
+6. **Check for extension hooks**: After tasks.md is generated, check if `.specify/extensions.yml` exists in the project root.
+   - If it exists, read it and look for entries under the `hooks.after_tasks` key
+   - If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
+   - Filter to only hooks where `enabled: true`
+   - For each remaining hook, do **not** attempt to interpret or evaluate hook `condition` expressions:
+     - If the hook has no `condition` field, or it is null/empty, treat the hook as executable
+     - If the hook defines a non-empty `condition`, skip the hook and leave condition evaluation to the HookExecutor implementation
+   - For each executable hook, output the following based on its `optional` flag:
+     - **Optional hook** (`optional: true`):
+       ```
+       ## Extension Hooks
+
+       **Optional Hook**: {extension}
+       Command: `/{command}`
+       Description: {description}
+
+       Prompt: {prompt}
+       To execute: `/{command}`
+       ```
+     - **Mandatory hook** (`optional: false`):
+       ```
+       ## Extension Hooks
+
+       **Automatic Hook**: {extension}
+       Executing: `/{command}`
+       EXECUTE_COMMAND: {command}
+       ```
+   - If no hooks are registered or `.specify/extensions.yml` does not exist, skip silently
+
 Context for task generation: $ARGUMENTS
 
 The tasks.md should be immediately executable - each task must be specific enough that an LLM can complete it without additional context.
@@ -109,13 +172,13 @@ 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
-   - If tests requested: Each contract → contract test task [P] before implementation in that story's phase
+   - Map each interface contract → to the user story it serves
+   - 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

@@ -0,0 +1,9 @@
+{
+  "ai": "copilot",
+  "ai_commands_dir": null,
+  "ai_skills": false,
+  "here": true,
+  "preset": null,
+  "script": "sh",
+  "speckit_version": "0.3.0"
+}