Keeps ccw-cli's two README files in sync — `README.md` (English, repo root) and `docs/README.ja.md` (Japanese). Whenever either file is edited, or the user asks for a README change without naming a file, this skill must fire and propagate the semantically equivalent change to the other file. Trigger on any edit touching `README.md` or `docs/README.ja.md`, and on any user request about "the README" (singular) since the siblings drift silently if you don't.
2026-04-23