Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already carry destructiveHint=true, idempotentHint=false, and openWorldHint=true, so the safety profile is known. The description adds nothing beyond this – it does not disclose what gets removed, whether dependent references break, or what the response looks like. No contradiction exists, but no value is added.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.