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

No annotations are provided, so the description carries the burden of behavioral disclosure. It describes the semantic content of the returned fields and their downstream use, which is helpful. However, it does not state the output shape (e.g., array vs. keyed object), whether this is a read-only operation, or any other side-effect/authentication expectations.

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 two sentences with no wasted words. It front-loads the core purpose and then provides one actionable usage pointer. The enumerated attributes are compact but comprehensive.

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, no-output-schema metadata tool, the description covers what data is returned and how to use it with submit_enquiry. It would be more complete if it specified the return container shape, but it is otherwise sufficient for an agent to call and interpret the tool.

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?

There are zero parameters and the schema coverage is 100% vacuously, so the baseline of 4 applies. The description adds relevant context about how returned field keys should map into submit_enquiry, though there are no parameters for it to document.

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 identifies the resource as 'Every field of the Payroll Software Compare enquiry' and enumerates the exact attributes returned: key, label, type, required flag, help text, and options. This distinguishes it from the compare_* siblings and from submit_enquiry, though it does not explicitly frame the action as a verb like 'list' or 'get'.

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?

The second sentence, 'Pass answers to submit_enquiry keyed by field key,' gives direct, practical guidance on how the output should be used, establishing clear context. It does not explicitly mention when not to use this tool or name alternatives, but the usage intent is clear.

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