GSD Map Codebase Analyzes existing codebase using parallel mapper agents. When to Use - Understanding an existing codebase structure - Starting work on a brownfield project - Documenting technology stack and architecture Process 1. Check for existing .planning/codebase/ directory 2. Create directory structure if needed 3. Spawn 4 parallel mapper agents (tech, arch, quality, concerns) 4. Wait for all agents to complete 5. Verify all 7 documents exist 6. Commit codebase map to git Output Documents - STACK.md, INTEGRATIONS.md (tech focus) - ARCHITECTURE.md, STRUCTURE.md (arch focus) - CONVENTION…