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

There are no annotations, so the description carries the full burden of behavioral disclosure. It does disclose that task text is discarded and that connection methods are returned, but it does not mention whether the tool makes external network calls, whether it triggers pay-per-call charges, what it does with the other inputs, or what failure modes might occur.

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 one tight sentence with the core action at the front and the most important behavioral caveat ('Task text discarded') appended. It has no filler, and each clause earns its place.

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?

Given a tool with 9 optional parameters, no required parameters, no annotations, no output schema, and a large sibling set, the description is too thin to be complete. It doesn't say which parameter to pass for which task, how 'connection methods' are structured, or what the agent should do with them.

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?

Schema description coverage is 100%, so the baseline is 3 even without parameter-level details in the description. The tool description is high-level but doesn't map any of the 9 parameters to task categories or explain how the parameters relate to finding a tool gateway, so it adds little beyond the schema.

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') and object ('public pay-per-call tool gateway'), gives example tasks (weather, search, scrape, voice), and states that it returns connection methods. It is not a full 5 because it doesn't explicitly differentiate itself from sibling tools and 'pay-per-call tool gateway' is somewhat ambiguous.

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?

It gives a few example task categories, which implies usage, but it never says when to prefer this tool over the many sibling validators and hints, nor does it explain how the agent should choose among the 9 optional parameters for a given task. There is no when-not guidance.

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