Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true and idempotentHint=true, so the core behavioral profile is covered. The description adds minimal extra behavior beyond the obvious deletion action, such as specifics about idempotency or error handling. It does provide context about clearing sensitive data, but this is more of a motivational use case than a behavioral disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.