Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the behavioral burden. It discloses that the operation is a read and warns that “status updates may be absent,” which is useful, but it does not describe permissions, pagination behavior, ordering, or return characteristics.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.