chameleon-auto-idiomlisted

# /chameleon-auto-idiom Derive **legit, high-value team idioms** from repo evidence and append them to `.chameleon/idioms.md` via the structured teach path. The whole point of this skill is the *complement*: it only proposes guidance that chameleon does NOT already capture — not in `conventions.json`, not in `principles.md`, not in `rules.json`, not already taught in `idioms.md`. Everything it produces is deduplicated twice: once by you against the coverage map, once deterministically by `check_idiom_candidates`. ## Hard rules (non-negotiable) 1. **Append-only. This skill NEVER modifies, removes, or deprecates an existing idiom.** Writing a new idiom with `status="active"` only appends. If a candidate contradicts an existing idiom, do not write it — surface the conflict and ASK the user whether the old idiom should be deprecated. Only an explicit "yes, deprecate it" authorizes a deprecation. Note the mechanics so you don't destroy guidance: calling `teach_profile_structured(slug=<existing active slug>, status="deprecated")` does NOT just flip a status flag — it OVERWRITES that idiom's body with whatever rationale/example/counterexample you pass. To deprecate without losing the original guidance, re-pass the original body (read it from `idioms.md` first) plus a deprecation note. Never edit `idioms.md` directly. 2. **Only write candidates that are (a) verdict `novel` from `check_idiom_candidates` AND (b) approved by the user.** Skipped candid