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

The description and parameter details mention that inputs are 'discarded' and that there is 'no disk access,' which provides some transparency. However, it does not disclose whether the tool makes network calls, requires authentication, or has rate limits, and the relationship between finding a gateway and discarding inputs is left unclear.

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 short and avoids unnecessary detail, but the three sentences are disjointed and leave key questions unanswered. It is concise without being clear.

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, no examples, and no explanation of how the gateway is selected or what 'connection methods' look like, the description is critically incomplete. The tool cannot be used reliably based solely on the provided information.

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?

Although all parameters have descriptions, each description only states that the value is discarded after a check, providing no actual semantic meaning or usage guidance. The parameter names hint at domains (url, city, query), but the descriptions actively undermine understanding by saying the values are not used.

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 general purpose ('Find a public pay-per-call tool gateway') and lists example tasks, but it does not explain how the tool is actually invoked or how the task is specified. It fails to clearly distinguish this tool from sibling tools like weather-hint or web-fetch.

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?

No guidance is given on when to use this tool versus alternatives. The description offers no prerequisites, no selection criteria, and no indication of what inputs are expected or how the task text is provided.

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