Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, idempotentHint=false, and destructiveHint=false, so the safety profile is covered. The description adds the scope semantics of whole_project, but omits behavioral details such as whether the requester is notified, whether a declined request can be re-answered, or whether answering twice errors out.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.