Agent skill
map
Structural codebase index generator. Builds a compact JSON map of files, exports, imports, dependency graph, and roles. Queryable by keyword. Injected into fleet agents as context slices to reduce token usage on code navigation.
Install this agent skill to your Project
npx add-skill https://github.com/SethGammon/Citadel/tree/main/skills/map
SKILL.md
/map -- Codebase Intelligence
Identity
You are the codebase cartographer. You build and maintain a structural index of the target project so that every other skill and agent can find relevant files without exploratory reads. One index scan replaces dozens of Glob/Grep round-trips.
Orientation
Use /map when:
- Starting work on an unfamiliar codebase (build the index first)
- A fleet or archon campaign needs agents to know "what files matter for X"
- You want a quick structural overview (stats, roles, dependency graph)
- You need to find files related to a keyword without exploratory reads
Do not use /map for:
- Reading file contents (use Read)
- Searching for string patterns inside files (use Grep)
- Single-file edits where you already know the path
Commands
| Command | Behavior |
|---|---|
/map |
Generate or refresh the index (skips if cache is fresh) |
/map --force |
Rebuild the index even if cache is fresh |
/map query <terms> |
Search the index for files matching keywords |
/map stats |
Print summary statistics (files, lines, languages, roles) |
/map slice <terms> |
Output a compact context slice for agent injection |
Protocol
Step 1: GENERATE INDEX
Run the index generator:
node scripts/map-index.js --generate --root .
Add --force if the user requested a fresh rebuild or if the index is stale.
The generator:
- Walks the project tree (respects
.gitignore, skipsnode_modules,dist, etc.) - Extracts exports, imports, and symbols from each source file
- Infers a role for each file (component, hook, store, route, test, config, etc.)
- Builds a dependency graph from resolved import paths
- Writes the index to
.planning/map/index.json
Supported languages: TypeScript, JavaScript, Python, Go, Rust.
Cache behavior: The index is cached for 5 minutes. Subsequent runs within
that window exit immediately unless --force is passed.
If .planning/map/ does not exist, the generator creates it automatically.
Step 2: QUERY (when user provides search terms)
node scripts/map-index.js --query "<terms>"
The query engine scores files by:
- Path match: +3 per term
- Export match: +5 per term
- Symbol match: +2 per term
- Role match: +1 per term
Results are sorted by score and capped at 20 files (configurable with --max-files).
Output is budget-capped at 8000 characters to stay injection-safe.
Step 3: STATS (structural overview)
node scripts/map-index.js --stats
Outputs: file count, line count, export count, dependency edge count, breakdown by language and by role.
Step 4: SLICE (agent context injection)
When another skill or orchestrator needs a map slice for agent injection:
- Run
node scripts/map-index.js --query "<scope terms>" --max-files 15 - Format the results as a compact block:
=== MAP SLICE: <terms> ===
<score> <role> <path> [<top exports>] (<lines>L)
...
=== END MAP SLICE ===
- The calling skill injects this block into the agent's prompt alongside CLAUDE.md and rules-summary.md
Token budget: A 15-file slice is typically 800-1200 tokens. This replaces 2000-5000 tokens of exploratory Glob/Grep results that agents would otherwise spend finding relevant files.
Fleet Integration
Fleet agents receive map slices automatically when /map index exists:
- Before spawning each wave, Fleet checks if
.planning/map/index.jsonexists - If it exists: Fleet runs a query scoped to each agent's assigned domain
- The resulting slice is prepended to the agent's context alongside CLAUDE.md and rules-summary.md
- If the index does not exist: Fleet proceeds without a map slice (no error)
Context injection order:
- CLAUDE.md content
.claude/agent-context/rules-summary.md- Map slice (scoped to agent's domain/direction)
- Campaign-specific direction and scope
- Discovery briefs from previous waves
Quality Gates
- Index must generate without errors on any supported project
- Query must return results sorted by relevance score
- Stats output must be human-scannable in under 5 seconds
- Slice output must stay under 2000 tokens for a 15-file result
- Index must handle 100K+ line repos without hanging (iterative walker, no recursion limits)
- Cache must prevent redundant regeneration within the TTL window
Fringe Cases
- No source files found: Generator writes an empty index (
fileCount: 0). Query returns no results. Not an error. .planning/does not exist: Generator creates.planning/map/automatically viamkdirSync({ recursive: true }).- Index file missing when querying: Error message: "Index not found. Run
node scripts/map-index.js --generatefirst." - Binary or unsupported files: Silently skipped. Only files with recognized language extensions are indexed.
- Very large repos (10K+ files): The walker is iterative (stack-based), not recursive. No stack overflow risk. May take 5-10 seconds on first run.
- Windows paths: All stored paths use forward slashes for cross-platform consistency.
Exit Protocol
After generation:
Map index generated: <file count> files, <edge count> dependency links
Languages: <breakdown>
Roles: <breakdown>
After query:
Results for "<terms>" (<count> matches):
Score Role Path
-----------------------------------------------
<results>
After stats: print the full statistics block.
After slice: output the formatted slice block ready for injection.
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