Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds nothing beyond this – no note on what happens if the id is missing, no error behavior, no return context. With an output schema present, return format is partially covered, but the description still contributes little.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.