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

With no annotations, the description is fully responsible for behavioral disclosure. It adds 'task text discarded' and 'returns connection methods', which are useful transparency signals. However, it does not say whether network calls occur, what the returned connection-method format is, whether there are costs, or any authentication expectations.

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 short sentences with no waste: purpose, return value, and the task-text disposal caveat are in order. Every sentence earns its place, and key meaning 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?

For a 9-parameter, no-output-schema, no-annotation tool, the description gives the basic contract but not complete information: the result format of 'connection methods' and how parameters shape the lookup are left unspecified. It is adequately helpful for a task but not complete enough to be fully autonomous on a novel input.

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 carries 100% description coverage, so the baseline is 3 and the description doesn't need to restate parameter types. It adds only a loose mapping between task examples and parameters; the description doesn't clarify how each parameter contributes to gateway discovery. This is sufficient but not enriching.

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 opens with a specific verb and resource ('Find a public pay-per-call tool gateway'), then gives concrete example tasks (weather, search, scrape, voice). It clearly differentiates this as a discovery/index tool rather than a direct utility, though it doesn't name which sibling it replaces.

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?

Usage is implied through the example task list and the promise of returning connection methods, which tells an agent the kind of task this tool is for. There is no explicit exclusions like 'use X for Y instead', so the agent must infer selection from the description and sibling names.

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