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

With no annotations, the description carries the behavioral burden. It explicitly states that task text is discarded, suggesting a read-only, non-retentive operation, and that the tool returns connection methods. It does not over-promise side effects, which is transparent enough for a discovery tool.

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?

Three sentences contain no fluff, front-load the main purpose and provide the most decision-relevant caveat to process in the final sentence. Every part is either useful or already woven into an example task category.

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 the 9-parameter schema and absence of output schema, the description is somewhat under-specified: it doesn't explain how parameters relate to gateway selection or how the returned connection methods are meant to be used. However, the parameter schema itself is detailed, covering the remaining context for a simple index lookup 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?

Schema coverage is 100%, so the baseline starts at 3. The description mentions task categories like weather, search, scrape, and voice, but does not map them to specific parameters or add meaning beyond what the schema already provides with each parameter's description.

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 verb and resource: find a public pay-per-call tool gateway, and names example tasks (weather, search, scrape, voice) it covers. It does not explicitly distinguish among sibling tools, but the meta-index purpose is apparent.

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 implies when to use the tool by listing task examples, but it provides no when-not guidance or explicit alternatives. It relies on sibling tool names and schema descriptions to signal routing decisions.

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