Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, which the description reinforces with 'Fetches data. Makes no changes.' The description adds a visual indicator ('🟢 READ-ONLY') and the HTTP method, but does not disclose additional behaviors such as error handling, rate limits, or authorization requirements. With annotations covering the safety profile, the description provides adequate but not extensive context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.