Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already mark this as read-only, idempotent, and non-destructive. The description adds meaningful behavioral context beyond annotations: it references data sources ('verified attestations + on-chain activity'), indicates the scoring scale, and even signals cost ('10c'). It gives a helpful sense of what the tool will and will not do.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.