Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnly, idempotent, and non-destructive behavior. The description adds that the tool returns a list of verified providers with their city, coverage, rating, and profile link, giving insight into the output format beyond the annotations. However, it does not mention potential error conditions or edge cases, so it is not fully transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.