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 it does disclose the shape of what comes back (key, label, type, required, help text, options) despite there being no output schema. It does not explicitly confirm the call is a side-effect-free read or say whether the field set is static, which keeps it from a 5.

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?

Two sentences, both load-bearing: the first enumerates the returned attributes in place of an absent output schema, and the second is an actionable handoff to a sibling tool. Nothing is redundant and the resource is front-loaded.

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, the description compensates by listing the exact payload members, and with zero parameters there is no argument documentation gap. The remaining shortfall is the unexplained boundary with the sibling enquiry_describe, which an agent cannot resolve from this text alone.

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 takes zero parameters, so there is nothing for the description to disambiguate; this hits the baseline 4 for a no-parameter tool. The description correctly avoids inventing parameters and instead points at the downstream key convention for submit_enquiry.

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 identifies a specific resource (every field of the PPC agency Manchester enquiry) and enumerates exactly what each field record contains: key, label, type, required flag, help text, and allowed options. The action verb is only implied ('returns'), and there is no differentiation from the sibling enquiry_describe, which sounds like an overlapping metadata tool, so it stops short of a 5.

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 gives a concrete downstream usage instruction: answers should be passed to submit_enquiry keyed by field key, which tells the agent how the output connects to a sibling tool. However there is no statement of when to call this versus enquiry_describe, nor any prerequisites or exclusions, so it remains implied usage rather than explicit routing.

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