Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full behavioral burden, and it steps in by describing the return shape (key, label, type, required, help text, allowed options) despite there being no output schema. It does not explicitly state the operation is a safe read with no side effects, but for a zero-param query tool that gap is minor.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two tightly packed sentences with no filler; the field enumeration comes first and the downstream usage note second. It is dense but front-loaded and every clause earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no annotations and no output schema, the description compensates well by enumerating the returned field attributes and connecting the output to submit_enquiry. Only the explicit absence of side effects / read-only nature is unstated, which is a small residual gap.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool takes zero parameters, so per the rubric the baseline is 4. The description adds no parameter detail because there are none to document, though it usefully notes that answers should be keyed by the returned field key when used downstream.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific resource (the enquiry form's fields) and enumerates exactly what each field record contains, making it easy to distinguish from enquiry_describe and submit_enquiry. It lacks an explicit verb, but the enum-style return list makes the read-only listing purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The second sentence implies the workflow ('Pass answers to submit_enquiry keyed by field key'), which hints this tool should be consulted before submitting. However, it never explicitly states when to call it versus enquiry_describe, and no exclusions are given, so usage is only implied.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.