testagent

Detect drift between testagent's upstream config corpus and vendor docs; surface net-new examples as a draft PR.

Drive cutting a new testagent release end-to-end: analyze the surface diff against the bump table in RELEASING.md, propose a version, draft three-bucket release notes, tag, watch CI, then publish curated notes.

Use when refreshing a vendor's section of COMPATIBILITY.md after an upstream release, when `task dumpcli:<vendor>` reports drift, when a contributor adds a flag or slash command not yet in the matrix, or for periodic coverage checks. Vendor is parsed from the trigger phrase. Triggers include "update claude compat", "research claude", "check claude coverage", "claude drift", "new claude version" — and the same patterns for "codex" and "cursor". Generic phrases ("compat drift", "sync compatibility") prompt for the vendor.