features-documentation

Ensures all user-facing feature changes are reflected in features documentation. When documentation drift is detected, work pauses until documentation is synchronized.

Core principle: Users must be able to discover and understand all features. Undocumented features don't exist to users.

Announce at start: "I'm using features-documentation to verify feature documentation sync."

当面向用户的功能发生变化时使用。确保更新功能文档。如果文档发生偏差，则暂停工作，从而触发文档审核技能。 来源：troykelly/codex-skills。