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

With no annotations the description carries the full burden, and it does disclose meaningful behavioral traits of the downstream action: nothing is bought, ordered or paid, no quote is guaranteed, and it is free. It also names the returned content (recipients, consent wording, confirmation). It does not explicitly restate that this describe call itself is a read-only, side-effect-free operation.

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 'Read first,' followed by two compact sentences; every sentence carries information about either the purpose or the guarantees, with no filler.

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 describe tool with no output schema and no annotations, the description covers what the call is for and roughly what it returns, which is enough for an agent to invoke it. It could be slightly stronger by naming enquiry_fields as the field-level alternative.

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?

Zero parameters, so the baseline is 4; there is nothing for the description to disambiguate and it correctly omits parameter discussion.

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 states a concrete purpose: it plainly explains what submit_enquiry does, and it enumerates the specific returns (who receives details, consent wording, how the person confirms). It clearly marks the boundary against the action sibling submit_enquiry ('not a purchase, not a guaranteed quote'), though it never distinguishes itself from enquiry_fields.

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 implied ordering cue (call this before submit_enquiry), but there is no explicit when-to-use/when-not statement and neither sibling alternative (enquiry_fields) is named or routed to.

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