Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already establish that this is a read-only, idempotent, non-destructive, closed-world operation. The description adds meaningful behavioral context by saying it returns a bounded page and live media counts but not folder contents. It does not discuss auth requirements or rate limits, but for this read-only listing tool the added scope detail is substantial.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.