Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses the core behavioral trait (clearing session), but doesn't mention potential side effects (e.g., requiring re-authentication for subsequent operations), error conditions, or confirmation of success. It covers basic behavior but lacks depth for a mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.