Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already disclose that the operation is read-only and non-destructive, so the description does not need to repeat that. It adds useful scope context ('current company') and output content ('track counts'), but it does not disclose pagination behavior or any additional call-specific side effects; the schema covers pagination rather than the description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.