Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare read-only, idempotent, non-destructive behavior. The description adds context about the tools being pre-configured and normally requiring local setup, plus an example endpoint. It doesn't disclose any side effects or rate limits, but given strong annotations, the bar is met and slightly exceeded.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.