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 the two-call protocol, that consent=true is mandatory, that a confirmation token gates the real submission, and that providers only see the enquiry after the person clicks an emailed verification link. It even specifies the exact consent wording the agent must surface, which is precisely the kind of behavioral context annotations would otherwise supply.

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 negative scope, then the two steps in order; every sentence does work for the agent. The only waste is restating the verbatim consent text that already appears in the consent parameter description, a minor redundancy in an otherwise tight definition.

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 and no annotations on a nested-object, two-phase tool, the description still covers what each step returns (summary, consent line, confirmation token), what the end user receives (verification email), and what consent legally means. Nothing an agent needs to complete the flow 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 goes further by explaining the temporal relationship between parameters (confirmation token comes 'from step 1, after the person has approved the summary') and that answers must be keyed by field keys from enquiry_fields. It slightly duplicates the consent text already in the schema, capping this below 5.

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 (submits), resource (enquiry) and explicitly delimits scope: 'NOT a purchase, NOT a guaranteed quote'. It also names the two-step protocol, which is the tool's defining behavior, so an agent cannot confuse it with a purchase or quote tool.

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 explicit when-to-call branching: Step 1 with answers + consent to validate, Step 2 only 'if the person agrees' with the same answers plus the token. It also names enquiry_fields as the source of the answer keys, routing the agent to the right sibling for input construction.

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