repo-mapping

Original：🇺🇸 English

Not Translated

Use when user asks to "create repo map", "generate repo map", "update repo map", "repo map status", or "map symbols/imports". Builds and validates an AST-based repo map using ast-grep.

1installs

Sourceavifenesh/awesome-slash

Added on2026-02-21

NPX Install

npx skill4agent add avifenesh/awesome-slash repo-mapping

SKILL.md Content

Repo Mapping Skill

Build and maintain a cached AST-based map of repository symbols and imports using ast-grep.

Parse Arguments

javascript

const args = '$ARGUMENTS'.split(' ').filter(Boolean);
const action = args.find(a => !a.startsWith('--')) || 'status';
const force = args.includes('--force');

Primary Responsibilities

Generate map on demand (
```
/repo-map init
```
)
Update map incrementally (
```
/repo-map update
```
)
Check status and staleness (
```
/repo-map status
```
)
Validate output with the map-validator agent

Core Data Contract

Repo map is stored in the platform state directory:

Claude Code:
```
.claude/repo-map.json
```
OpenCode:
```
.opencode/repo-map.json
```
Codex CLI:
```
.codex/repo-map.json
```

Minimal structure:

json

{
  "version": "1.0.0",
  "generated": "2026-01-25T12:00:00Z",
  "updated": "2026-01-25T12:05:00Z",
  "git": { "commit": "abc123", "branch": "main" },
  "project": { "languages": ["typescript", "python"] },
  "stats": { "totalFiles": 142, "totalSymbols": 847 },
  "files": {
    "src/auth/login.ts": {
      "hash": "deadbeef1234abcd",
      "language": "typescript",
      "symbols": { "exports": [], "functions": [], "classes": [] },
      "imports": [ { "source": "./utils", "kind": "named" } ]
    }
  }
}

Behavior Rules

Never run ast-grep without user approval if it is not installed
Never install dependencies without explicit user consent
Always validate map output with
```
map-validator
```
after init/update
Prefer incremental update unless map is stale or history rewritten

When to Suggest Repo Map

If a user asks for drift detection, documentation alignment, or repo analysis and repo-map is missing:

Repo map not found. For better analysis, run:
  /repo-map init

Staleness Signals

Map commit not found (rebased)
Branch changed
Git hooks marked stale
Commits behind HEAD

Output Expectations

Keep outputs concise:

init/update: file count, symbol count, commit, warnings
status: staleness, commits behind, last updated