Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false. The description adds that it deletes 'previously stored memory' and mentions clearing sensitive data, but does not disclose behavior like handling non-existent keys or side effects. The criteria say to credit added context; this adds minimal but non-contradictory context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.