Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safe read behavior is known. However, the description adds no behavioral context beyond the annotations, such as pagination behavior, ordering, or what constitutes a transaction. It does not contradict annotations, but it provides no extra value.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.