gsd-map-codebase

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.

<execution_context> @.agents/gsd-core/workflows/map-codebase.md </execution_context>

Parse the first token of $ARGUMENTS:

• If it is --fast: strip the flag, then read and execute .agents/gsd-core/workflows/scan.md (passing remaining args including optional --focus). Load it on demand here — it is deliberately not in <execution_context>, so the common full-map path does not pay for it.
• If it is --query: strip the flag, run the intel workflow (passing remaining args as the subcommand).
• Otherwise: pass all of $ARGUMENTS as focus area to the map-codebase workflow.

Load project state if exists: Check for .planning/STATE.md - loads context if project already initialized

This command can run:

• Via /gsd-onboard for first-time brownfield setup - creates codebase map first
• After /gsd-new-project (greenfield codebases) - updates codebase map as code evolves
• Anytime to refresh codebase understanding

<when_to_use> Use map-codebase for:

• Brownfield projects before initialization (understand existing code first)
• Refreshing codebase map after significant changes
• Refreshing or deepening an onboarded codebase map
• 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• When STATE.md references outdated codebase info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) </when_to_use>

<success_criteria>

• .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 </success_criteria>