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gsd:map-codebase

Analyze codebase with parallel mapper agents to produce .planning/codebase/ documents

Stars
2,987
Source
davepoon/buildwithclaude
Updated
2026-05-26
Slug
davepoon--buildwithclaude--map-codebase
View on GitHubRaw SKILL.md

// install — copy + paste into any project

mkdir -p .claude/skills && curl -fsSL https://raw.githubusercontent.com/davepoon/buildwithclaude/HEAD/plugins/gsd/skills/map-codebase/SKILL.md -o .claude/skills/map-codebase.md

Drops the SKILL.md into .claude/skills/map-codebase.md. Works with Claude Code, Cursor, and any agent that loads SKILL.md files from .claude/skills/.

Analyze existing codebase using parallel gsd-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.

@${CLAUDE_PLUGIN_ROOT}/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 /gsd:new-project (brownfield codebases) - creates codebase map first
  • After /gsd: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- Onboarding to an unfamiliar codebase - Before major refactoring (understand current state) - When STATE.md references outdated codebase info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 gsd-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: /gsd:new-project or /gsd: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