Analyze existing codebase using parallel gad-codebase-mapper agents to produce structured codebase documents.
Each mapper agent explores a focus area and writes documents directly to .planning/codebase/. The orchestrator only receives confirmations, keeping context usage minimal.
Output: .planning/codebase/ folder with 7 structured documents about the codebase state.
@workflows/map-codebase.md
Focus area: $ARGUMENTS (optional - if provided, tells agents to focus on specific subsystem)
Load project state if exists:
Check for .planning/STATE.md - loads context if project already initialized
This command can run:
- Before /gad:new-project (brownfield codebases) - creates codebase map first
- After /gad:new-project (greenfield codebases) - updates codebase map as code evolves
- Anytime to refresh codebase understanding
**Use map-codebase for:**
- Brownfield projects before initialization (understand existing code first)
- Refreshing codebase map after significant changes
- Onboarding to an unfamiliar codebase
- Before major refactoring (understand current state)
- When STATE.md references outdated codebase info
Skip map-codebase for:
- Greenfield projects with no code yet (nothing to map)
- Trivial codebases (<5 files)
1. Check if .planning/codebase/ already exists (offer to refresh or skip)
2. Create .planning/codebase/ directory structure
3. Spawn 4 parallel gad-codebase-mapper agents:
- Agent 1: tech focus → writes STACK.md, INTEGRATIONS.md
- Agent 2: arch focus → writes ARCHITECTURE.md, STRUCTURE.md
- Agent 3: quality focus → writes CONVENTIONS.md, TESTING.md
- Agent 4: concerns focus → writes CONCERNS.md
4. Wait for agents to complete, collect confirmations (NOT document contents)
5. Verify all 7 documents exist with line counts
6. Commit codebase map
7. Offer next steps (typically: /gad:new-project or /gad:plan-phase)
- [ ] .planning/codebase/ directory created
- [ ] All 7 codebase documents written by mapper agents
- [ ] Documents follow template structure
- [ ] Parallel agents completed without errors
- [ ] User knows next steps