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."

當面向使用者的功能發生變化時使用。確保更新功能文件。如果文件發生偏差，則暫停工作，從而觸發文件審核技能。 來源：troykelly/codex-skills。