Skill Divergence Audit

This skill mechanizes what was done by hand: a periodic diff of our published skills against Matt Pocock's mattpocock/skills and the agent-research knowledge base, classified into actionable categories, with the strongest gaps proposed as labeled issues for the maintainer to decide on.

It proposes; it never applies. The only mutation it may make is filing issues — labeled source:skill-audit, capped at one per run, deduplicated against open issues, and passed through the leak guard before anything reaches the tracker. The producer/decider split (ADR 0003) is what makes unattended operation safe.

The ≤1-per-run cap, dedup, and leak guard are enforced by code, not prompt discipline. The mechanical details — the gate, the sanitizer, and the filing path — follow proposal-flow.md exactly. The pure classify core ships with this skill under lib/ and is unit-tested there.