Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the behavioral burden, and 'Service health' implicitly conveys a read-only, non-mutating operation plus what the report covers. However, it does not explicitly state that no state is modified, whether authentication is required, or any failure/error behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.