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 safety profile is covered. The description adds value by explaining what metrics are returned (completions vs target, quality counts, expected finish) and the condition 'when enough progress exists' signals a possible partial result. However, it doesn't detail auth requirements or rate limits beyond the organization_id note in schema.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.