CLAUDE.md@.claude git:20260518.b9dc3edA

Immutable. This exact content is served forever at /api/v1/blob/8a9b5a49acd2399a.

# Project conventions

When adding or modifying a skill in this repo:

- Run `scripts/validate_skills.py` before declaring the work done — same script CI runs.
- Update the skill index in `README.md` (alphabetical, under `## Skills`).