Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate destructive=true and readOnly=false, and the description adds useful context: the revocation is permanent, past messages remain stored, and the key can no longer perform reads or writes. This goes beyond the annotations, though it does not mention authentication requirements or confirmation behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.