Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare readOnlyHint=true and destructiveHint=false, informing the agent of safe, non-destructive behavior. The description adds no further behavioral information beyond what is already in the schema and annotations, such as rate limits, error conditions, or response format details.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.