Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The rich annotations (readOnlyHint, idempotentHint, destructiveHint, openWorldHint) already declare the full safety and idempotency profile, and the description adds no behavioral context beyond restating the purpose. No mention of auth requirements, permissions, or what 'details' are returned.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.