Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true and idempotentHint=true, and the description's 'Delete' aligns with this. The description adds contextual value by explaining why deletion might be needed (stale context, sensitive data) without contradicting the annotations. It doesn't mention irreversibility, but that's already implied by the destructive hint.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.