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 usefully states that nothing is bought, ordered, or paid, no quote is guaranteed, and the enquiry is free, which prevents costly missteps. It also discloses what the tool returns: recipient details, consent wording, and confirmation behavior. It does not explicitly say 'this tool itself sends nothing', but its informational nature is strongly implied.

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?

The description is short and front-loaded with 'Read first', which gives immediate usage priority. The caveats are packed efficiently. There is mild redundancy with the title ('not a purchase, not a guaranteed quote' appears in both), but the description remains compact and each 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?

For a zero-parameter, informational tool with no output schema, the description is complete: it explains what the tool is for, reassures about cost and commitment, names the sibling that actually submits, and lists the key content returned. An agent has everything needed to decide when to call it and what to expect back.

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 has zero parameters, so the schema already trivially covers 100% of inputs. The description adds context about what the returned explanation covers, which is reasonable. There is no parameter burden for the description to carry beyond this.

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 the specific resource (an ENQUIRY on Towing Capacity Checker) and the tool's job: to state plainly what submit_enquiry does, i.e., describe the outcome before anything is submitted. The title reinforces this by framing it as 'What you get'. It is clearly distinguished from sibling tools like submit_enquiry and checker_answer because it is positioned as the 'read first' explainer.

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 opening imperative 'Read first' explicitly tells the agent to use this before acting on the enquiry flow. It also clarifies that this is not a purchase or guaranteed quote and names submit_enquiry as the actual submission sibling. It could more explicitly say 'use submit_enquiry only after this is read', but the intent is clear.

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