Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and openWorldHint=true, so the safety profile is covered by structured data. The description adds the scope of the stats (uploads, claims, attribution history) but nothing about freshness, auth requirements, or failure modes for an unknown author name.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.