Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It only states it 'gets details' without specifying what kind of details, whether this is a read-only operation, what permissions are required, or how deleted items are handled (despite an 'include_deleted' parameter). The description doesn't mention error conditions, rate limits, or response format.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.