Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is disclosed structurally. The description adds nothing on top: it does not say whether the delete is hard or soft, whether it cascades to related records, whether it is reversible, or what permissions are needed. With annotations carrying the safety burden the bar is lower, but the description contributes zero extra behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.