Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is clear. The description adds return-field context (item_count, total_quantity, floor price), but no pagination, sorting, or authentication behavior beyond that. With annotations present, moderate added value is appropriate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.