Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations and no output schema, the description carries the burden of explaining what the tool returns. It does so by enumerating the field attributes: key, label, type, required, help text, and options. It also indicates the relationship to submit_enquiry. It does not explicitly confirm the operation is read-only or describe formatting, but the metadata nature is clear.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.