Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate readOnlyHint=true and destructiveHint=false. The description adds that orders are buyer-private and only the token holder's orders are returned, which is valuable behavioral context beyond annotations. However, 'recent' is vague and could be more precise.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.