Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered by structured data. The description adds nothing beyond that: it does not describe return shape, whether it errors on missing records, permission requirements, or what the `raw` flag changes about the response.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.