Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The readOnlyHint annotation already declares the operation is read-only, and the description's 'List' is consistent. However, the description adds no further behavioral context such as return format, pagination defaults, or error handling. With the annotation covering safety, the description contributes little beyond the schema's parameter names.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.