Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the burden of behavioral disclosure. It discloses the main behavioral content: the field metadata structure, required status, help text, and allowed options. It also reveals how the values should be used with submit_enquiry. It does not explicitly state that the call has no side effects, but the metadata-only framing makes that clear.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.