Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotation readOnlyHint:true indicates no side effects, and the description does not contradict that. It explains the return format (per-section counts and issue list), the meaning of severity levels 'error' and 'dropped', and the iterative validation process, providing full transparency about behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.