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 does so: it discloses validation behavior, the returned artifacts (summary, consent line, confirmation token), the human-in-the-loop requirement, the double opt-in email link, and the critical downstream effect that details are shared with suppliers who may contact the person.

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?

Front-loaded with the crucial disambiguation ('NOT a purchase') and every sentence carries operational information, but the consent sentence is quoted verbatim in the description and then again in the schema's consent property, which is a small amount of redundancy for a single dense paragraph.

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 output schema, the description compensates by describing exactly what step 1 returns and what step 2 produces, including the email confirmation step. Given the nested answers object and the two-phase flow, nothing an agent needs to invoke this correctly 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?

Schema coverage is 100%, so the baseline is 3; the description still adds sequencing meaning the schema cannot express — that the confirmation token comes only from step 1 and is only valid after the person approves the summary, and that answers are keyed to enquiry_fields field keys.

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?

States a specific verb and resource ('Submits an enquiry to Wedding Cost Checker') and immediately rules out what it is not ('NOT a purchase, NOT a guaranteed quote'). It also anchors itself relative to siblings by referencing field keys from enquiry_fields, so an agent can separate it from enquiry_fields/enquiry_describe without reading schemas.

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?

Gives an explicit two-step protocol: step 1 validates with answers+consent=true, step 2 re-calls with the confirmation token only after the person approves. The gating condition (person must agree) and the intermediating action (show the summary and consent line) are spelled out rather than left to inference.

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