Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations declare readOnlyHint=false and destructiveHint=false, consistent with a rotate operation, so there is no contradiction. But the description adds nothing beyond the annotations: it does not say whether the prior key is immediately invalidated, whether clients using the old key break, or what credentials the caller must present for such a security-sensitive mutation. For a write tool touching credentials, this is a significant disclosure gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.