webjs-doc-sync

Use this skill whenever a change ships a user-facing or agent-facing surface (a new export, CLI flag, package.json webjs.* config key, html hole prefix, lifecycle hook, convention, or a behaviour change to an already-documented feature) and the docs must be brought in sync, OR when the user asks to find documentation drift / doc gaps / "did we update the docs", audit shipped work for missing docs, or sync the docs…