Repomap

When to Activate

• Claude Code session starts on an unfamiliar or large codebase
• User runs /repomap to refresh the injected context map
• Context window is clean and a codebase overview would orient Claude faster
• Working in a multi-service monorepo where key entry points aren't obvious

What It Does

Generates a compact codebase snapshot and injects it into the session context:

1. Hot files — files most recently modified (from git log) are shown first
2. Key symbols — exported functions, classes, and interfaces extracted via language-specific regex (no tree-sitter required)
3. File tree summary — grouped by top-level directory with file counts
4. Cache — result stored in .clarc/repomap.txt, refreshed every 24h automatically

This mirrors Aider's repomap concept but uses zero-dependency Node.js (git + regex) instead of tree-sitter.