Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the burden of conveying that this is a read-only introspection tool, and it does imply that by describing the field metadata rather than any mutation. The final sentence, 'Pass answers to submit_enquiry keyed by field key,' clarifies that this tool does not itself accept or submit answers. However, it does not address output format, potential errors, or dynamic behavior, so it is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.