Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover read-only, idempotent, and closed-world behavior, so no safety disclosure burden remains. The description adds the result location ('items') and catalog context, but doesn't discuss match behavior, pagination, or errors; with the output schema present this is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.