Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It lists returned information but does not explicitly state that this is a read-only operation, say what happens when the device is disconnected, or describe the response structure. The noun-phrase format implies a query but fails to disclose side-effect-free behavior or error handling.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.