Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare this as a safe idempotent read, so the description correctly focuses on what they cannot express: the snapshot cadence (daily, hourly for matches within four days), the 10-credit cost, and a hard compliance boundary against staking or betting advice. These are exactly the operational facts an agent needs before calling a priced data endpoint.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.