Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Adds substantial behavior beyond the annotations: full reversibility between any statuses, the reviewedAt stamp/clear rule, the downstream effect on list_mentions/count_mentions, and mentionId provenance. Although destructiveHint=true, the description discloses the mutation is reversible and scoped, which meaningfully informs the agent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.