Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=true and readOnlyHint=false, so the safety profile is covered without the description. The description adds nothing beyond that: no statement of what gets deleted, whether dependent records cascade, or whether the operation is recoverable. No contradiction, but zero added context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.