Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare mutation (readOnlyHint=false), idempotency, non-destructiveness, and open-world access, but the description adds no behavioral context of its own — no mention of required permissions, whether omitted fields are preserved or cleared, or what happens if body is null (which the schema explicitly allows as a default).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.