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

No annotations exist, so the description carries the full burden and mostly discharges it: it discloses validation behavior, what is returned in step 1, the token gate in step 2, the email verification requirement, and the data-sharing scope (up to three firms who will contact the person directly, with per-firm notification and an opt-out). Reversibility and rate limits are unstated, but the operational sequence is unusually well disclosed.

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 and logically ordered (disclaimer, step 1, step 2, consent meaning), but it reproduces the entire consent sentence verbatim even though the identical text is already in the consent parameter's schema description. That is a large block of duplicated content in a description that is otherwise dense.

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?

There is no output schema, so the description must cover returns, and it does: step 1 yields a summary, the consent line, and a confirmation token; step 2 yields submission plus a verification email. For a nested-object, two-phase, no-annotation tool, an agent has everything needed to call it correctly.

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 already 100%, so the baseline is 3. The description earns a small premium by linking 'answers' to the sibling enquiry_fields tool ('keyed by field key from enquiry_fields') and by clarifying that consent=true is required in BOTH calls, not just the first — details the schema alone does not convey.

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 (submit an enquiry to Event Hire Costs) and immediately scopes it against the most likely confusion: 'NOT a purchase, NOT a guaranteed quote.' The two-step flow distinguishes it from the sibling describe/fields tools, which only supply field metadata.

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?

Explicit when-to-use for both steps: step 1 with answers+consent, step 2 only 'if the person agrees' with the token. It also spells out the precondition (consent means the person has read and agreed to the quoted text) and the post-condition (email link must be clicked before any provider sees it).

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