Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states what is returned (formulas, output values, detection dates) but says nothing about the 'current session' context—what defines the session, whether data reflects live state or a snapshot, whether the call can fail under certain conditions, or the structure of the response. For an annotation-less getter, the description offers only the minimum behavioral surface.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.