Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the description doesn't need to restate safety. The description adds only the notion of 'audit', implying a read-only check. It doesn't disclose what the audit returns or whether it produces a report, but the output schema likely covers that. Given the annotations carry the safety profile, the description adds minimal behavioral context, so a 3 is appropriate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.