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

With no annotations, the description must carry the behavioral burden, and it does by disclosing what the tool returns: who receives the details, consent wording, and confirmation method. It also clarifies that the subject matter is free and not a guaranteed quote. It does not explicitly state whether enquiry_describe itself triggers any side effect, but as a describe-style tool, the implied behavior is non-mutating and the return content is well specified.

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 compact and front-loaded with the most important instruction ('Read first'). It packs the key facts into three sentences without padding, and the title adds a useful high-level framing. Slightly redundant phrasing exists between the title and description, but the structure is effective.

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 gives enough contextual detail: what it describes, what subject it covers, and what information it returns. It could have included an explicit note that this tool does not itself submit an enquiry, but that is reasonably inferred from the wording and the sibling relationship to submit_enquiry.

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 and the input schema is empty, so there are no parameter semantics for the description to clarify. This matches the baseline expectation that a zero-parameter tool needs no parameter documentation.

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 clearly states that this tool explains what submit_enquiry does on Varicose Vein Treatment Cost, and the title reinforces that the enquiry is with a human, not a purchase or guaranteed quote. It lacks an explicit comparison to sibling tools, but the verb 'States plainly' and the reference to submit_enquiry are enough to identify its role as a descriptive helper.

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?

'Read first' gives an immediate usage cue: consult this tool before acting on submit_enquiry. The description also frames expectations by clarifying that nothing is bought, ordered, or paid. It does not explicitly say when to choose enquiry_fields over enquiry_describe, but the usage context is otherwise clear.

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