Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description bears full responsibility for disclosing behavior. It only mentions 'compute' and 'verifiable', but does not explain whether the operation is synchronous, whether it creates any side effects, how round_id and beacon_hex interact, or what permissions/rate limits apply. Significant behavioral ambiguity remains.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.