Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the basic safety profile is covered. However, the description adds no behavioral detail beyond the annotations, such as what metadata is returned, whether the attachment must exist, or any auth/availability considerations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.