Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare read-only, idempotent, open-world, and non-destructive behavior. The description adds the HTTP method POST, which is useful context for a read operation and does not contradict annotation hints. No additional behavioral details (e.g., date handling) are provided, but the annotations carry the safety profile.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.