Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description adds significant behavioral detail beyond the annotations: only visibility='public' entries surface, private theses never leak, reputation is computed as correct/(correct+wrong), null when n < 5, and sample tier is rejected. It clarifies exactly what filtering and aggregation behavior the caller can expect.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.