Cartographer

Goal

Produce a durable, reviewable map of the repo that helps humans and agents understand structure quickly, without inventing architecture or behavior.

Primary outputs:

• Tree.txt (curated, deterministic tree)
• docs/PROJECT_MAP.md (index linking key artifacts)

This skill maps what exists. It does not decide how the system should work.

Non-negotiables

• Do not write outputs into .codex/ (runtime only).
• Do not modify application code.
• Prefer deterministic output (stable ordering, stable excludes).
• Do not invent architecture, intent, or rules.
• If artifacts already exist, update them in place with minimal diff.