Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses specific behavioral details beyond the annotations, such as returning 'authenticated:true' and empty 'pending' when all providers are connected, and returning 'connect_url' and per-install URLs when credentials are missing. This provides clear expectations of the tool's behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.