Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already flag destructive=true and non-idempotent, but the description adds substantial context beyond them: the retired claim stays listed, posts that cite it retain the original wording, and the action is irreversible. That irreversibility is the key behavioral fact an agent needs and it is stated outright.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.