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

No annotations are provided, so the description carries the full burden, and it does disclose the entire return shape (key, label, type, required, help text, options) — significant because there is no output schema. It stops short of stating that the call is read-only, whether auth is required, or whether the field set is stable, which for a zero-parameter introspection tool is a minor gap.

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 sentences: the first front-loads the return contents, the second front-loads the actionable next step. No filler, no restatement of the title.

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 input parameters and no output schema, the description fully compensates by enumerating the returned payload and explaining how it feeds submit_enquiry. Nothing an agent needs in order to call this and act on the result is missing.

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 the baseline is 4. The description's only mention of 'field key' refers to the output entries consumed by submit_enquiry, not an input, so there is no parameter semantics to clarify.

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?

Names a specific resource (the fields of the Miniature Paints Compare enquiry) and enumerates exactly what each entry contains: key, label, type, required flag, help text, and allowed options. It is clearly distinguishable from enquiry_describe (which describes the enquiry) and submit_enquiry (which consumes the keys returned here).

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 sentence 'Pass answers to submit_enquiry keyed by field key' routes the agent to the follow-up tool and tells it how to use the output. It does not explicitly state the antecedent condition (call this before submitting) nor contrast with enquiry_describe, so the when-to-use is implied rather than spelled out.

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