Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare this a safe, read-only, non-open-world operation, so the safety profile is fully covered elsewhere. The description's only added behavioral nuance is the word 'Documented', implying undocumented workflows are excluded, but it says nothing about ordering, scale, or pagination. Adequate, not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.