Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructive=true, idempotent=true and readOnly=false, so the safety profile is mostly covered. The description still adds value beyond them: it states the action cannot be undone and requires confirmation, which the hints do not convey. Nothing is claimed that conflicts with the annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.