Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full behavioral burden. It does disclose one meaningful side effect ('clears locally saved credentials'), which tells the agent this is a state-mutating operation, but it leaves open whether server-side tokens are revoked or only local files removed, and whether other sessions are affected.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.