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.

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Forks 51

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:

bash
node scripts/map-index.js --generate --root .

Add --force if the user requested a fresh rebuild or if the index is stale.

The generator:

  1. Walks the project tree (respects .gitignore, skips node_modules, dist, etc.)
  2. Extracts exports, imports, and symbols from each source file
  3. Infers a role for each file (component, hook, store, route, test, config, etc.)
  4. Builds a dependency graph from resolved import paths
  5. 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)

bash
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)

bash
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:

  1. Run node scripts/map-index.js --query "<scope terms>" --max-files 15
  2. Format the results as a compact block:
=== MAP SLICE: <terms> ===
<score> <role>  <path>  [<top exports>]  (<lines>L)
...
=== END MAP SLICE ===
  1. 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:

  1. Before spawning each wave, Fleet checks if .planning/map/index.json exists
  2. If it exists: Fleet runs a query scoped to each agent's assigned domain
  3. The resulting slice is prepended to the agent's context alongside CLAUDE.md and rules-summary.md
  4. If the index does not exist: Fleet proceeds without a map slice (no error)

Context injection order:

  1. CLAUDE.md content
  2. .claude/agent-context/rules-summary.md
  3. Map slice (scoped to agent's domain/direction)
  4. Campaign-specific direction and scope
  5. 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 via mkdirSync({ recursive: true }).
  • Index file missing when querying: Error message: "Index not found. Run node scripts/map-index.js --generate first."
  • 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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