Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare a read-only, non-destructive, closed-world read, so the safety profile is covered. The description adds a useful payload constraint (terms text omitted, metadata only), which goes beyond the annotations. However it says nothing about pagination behavior or result volume, which the nested query params imply.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.