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

No annotations are provided, so the description carries the full burden. It mentions that the tool 'returns connection methods' and that task text is discarded, but it does not disclose side effects, cost implications despite the 'pay-per-call' label, or failure/error behavior.

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 only two sentences, front-loads the main purpose, and contains no redundant filler. It is appropriately concise for the information it conveys.

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?

There is no output schema, no explanation of what 'connection methods' look like, and no guidance on parameter selection or error cases. Given the ambiguous parameter list and lack of annotations, the description is not complete enough for an agent to reliably invoke 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?

The schema descriptions cover all nine parameters with individual explanations, which meets the baseline. However, the tool description does not explain how parameters like city, query, url, or json relate to the 'task' being looked up, and the statement that task text is discarded conflicts with parameters like query that are only length-checked.

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 specific action ('Find a public pay-per-call tool gateway') and gives examples of task types ('weather, search, scrape, or voice'), which distinguishes it from sibling tools like weather-hint or web-fetch. However, 'tool gateway' is somewhat jargon-y and the phrase 'Task text discarded' is ambiguous about what input the task text refers to.

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 description provides examples of when to use the tool (weather, search, scrape, voice) but gives no guidance on how to select among the nine optional parameters or when not to use this tool versus a sibling. It also does not explain how the 'task' is specified, especially since no parameter is named 'task'.

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