Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full disclosure burden and does not state whether the call is read-only, whether it mutates or resets local state, whether it is expensive, or what it returns. The listing of 'local health, configured models/checks, editor capabilities' hints at read-only diagnostics but does not assert it.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.