Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the burden of behavioral disclosure. The verb 'Get' communicates read-only intent, which is valuable, but the description does not state whether authentication is required, what 'health status' covers, or that the operation is side-effect free. It provides partial transparency only.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.