/blueprint-claude-md

Generate or update the project's CLAUDE.md file based on blueprint artifacts, PRDs, and project structure.

Steps:

1. Check current state:

   • Look for existing CLAUDE.md in project root
   • Read docs/blueprint/manifest.json for configuration
   • Determine claude_md_mode (single, modular, or both)

2. Determine action (use AskUserQuestion):

   {If CLAUDE.md exists:}
   question: "CLAUDE.md already exists. What would you like to do?"
   options:
     - "Update with latest project info" → merge updates
     - "Regenerate completely" → overwrite (backup first)
     - "Add missing sections only" → append new content
     - "Convert to modular rules" → split into .claude/rules/
     - "View current structure" → analyze and display
   
   {If CLAUDE.md doesn't exist:}
   question: "No CLAUDE.md found. How would you like to create it?"
   options:
     - "Generate from project analysis" → auto-generate
     - "Generate from PRDs" → use blueprint PRDs
     - "Start with template" → use starter template
     - "Use modular rules instead" → skip CLAUDE.md, use rules/
   

3. Gather project context:

   • Project structure: Detect language, framework, build tools
   • PRDs: Read docs/prds/*.md for requirements
   • Work overview: Current phase and progress
   • Existing rules: Content from .claude/rules/ if present
   • Git history: Recent patterns and conventions
   • Dependencies: Package managers, key libraries

4. Generate CLAUDE.md sections:

   Standard sections:

   # Project: {name}
   
   ## Overview
   {Brief project description from PRDs or detection}
   
   ## Tech Stack
   - Language: {detected}
   - Framework: {detected}
   - Build: {detected}
   - Test: {detected}
   
   ## Development Workflow
   
   ### Getting Started
   {Setup commands}
   
   ### Running Tests
   {Test commands}
   
   ### Building
   {Build commands}
   
   ## Architecture
   {Key architectural decisions from PRDs}
   
   ## Conventions
   
   ### Code Style
   {Detected or from PRDs}
   
   ### Commit Messages
   {Conventional commits if detected}
   
   ### Testing Requirements
   {From PRDs or rules}
   
   ## Current Focus
   {From work-overview.md}
   
   ## Key Files
   {Important files and their purposes}
   
   ## See Also
   {If modular rules enabled:}
   - `.claude/rules/` - Detailed rules by domain
   - `docs/prds/` - Product requirements
   

5. If modular rules mode = "both":

   • Keep CLAUDE.md as high-level overview
   • Reference .claude/rules/ for details:

     ## Detailed Rules
     See `.claude/rules/` for domain-specific guidelines:
     - `development.md` - Development workflow
     - `testing.md` - Testing requirements
     - `frontend/` - Frontend-specific rules
     - `backend/` - Backend-specific rules
     

6. If modular rules mode = "modular":

   • Create minimal CLAUDE.md with references
   • Move detailed content to .claude/rules/

7. Smart update (for existing CLAUDE.md):

   • Parse existing sections
   • Identify outdated content (compare with PRDs, structure)
   • Offer section-by-section updates:

     question: "Found outdated sections. Which would you like to update?"
     options: [list of sections]
     allowMultiSelect: true
     

8. Sync with modular rules:

   • If rules exist in .claude/rules/
   • Detect duplicated content
   • Offer to deduplicate:

     question: "Found duplicate content between CLAUDE.md and rules/. How to resolve?"
     options:
       - "Keep in CLAUDE.md, remove from rules"
       - "Keep in rules, reference from CLAUDE.md"
       - "Keep both (may cause confusion)"
     

9. Update manifest:

   • Record CLAUDE.md generation/update
   • Track which PRDs contributed
   • Update timestamp

10. Report:

    ✅ CLAUDE.md updated!
    
    {Created | Updated}: CLAUDE.md
    
    Sections:
    - Overview ✅
    - Tech Stack ✅
    - Development Workflow ✅
    - Architecture ✅
    - Conventions ✅
    - Current Focus ✅
    
    Sources used:
    - PRDs: {list}
    - Rules: {list}
    - Project detection: {what was detected}
    
    {If modular mode:}
    Note: Detailed rules are in .claude/rules/
    CLAUDE.md serves as overview and quick reference.
    
    Run `/blueprint-status` to see full configuration.
    

CLAUDE.md Best Practices:

• Keep it concise (< 500 lines ideally)
• Focus on "what Claude needs to know"
• Reference modular rules for details
• Update when PRDs change significantly
• Include current focus/phase for context

11. Prompt for next action (use AskUserQuestion):

    question: "CLAUDE.md updated. What would you like to do next?"
    options:
      - label: "Check blueprint status (Recommended)"
        description: "Run /blueprint:status to verify configuration"
      - label: "Manage modular rules"
        description: "Add or edit rules in .claude/rules/"
      - label: "Continue development"
        description: "Run /project:continue to work on next task"
      - label: "I'm done for now"
        description: "Exit - CLAUDE.md is saved"
    

    Based on selection:

    • "Check blueprint status" → Run /blueprint:status
    • "Manage modular rules" → Run /blueprint:rules
    • "Continue development" → Run /project:continue
    • "I'm done" → Exit

Template Sections (customize per project type):