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

Annotations are absent, so the description carries the full burden. It states 'Returns connection methods' and 'Task text discarded,' which are useful facts, but it does not disclose whether the tool makes network calls, whether it is read-only, what side effects exist, or any auth/rate limits. It also leaves 'connection methods' structurally undefined, so the return behavior is only vaguely conveyed.

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?

Two sentences with the core purpose front-loaded. The final clause 'Task text discarded' is a useful privacy note, and the text wastes no words. It is appropriately compact for a description that cannot enumerate all 9 parameters.

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 9 optional parameters, no output schema, and zero annotations, the description is under-specified. It does not explain what a 'connection method' looks like, how many results might be returned, which parameters are meaningful for which task, or what happens when no gateway matches. An agent would need to inspect the schema deeply or test empirically, which weakens autonomy.

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% and each of the 9 parameters already has an individual description, so a 3 baseline applies. The description's task categories ('weather, search, scrape, voice') loosely map to a few parameters (e.g., city, query, feed) but add no concrete parameter syntax, precedence, or combination rules beyond what the schema already states.

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.' The examples 'weather, search, scrape, or voice' add scoping and hint at task categories. It does not explicitly name sibling tools, but its resource is distinct enough (an index/gateway finder) that an agent can roughly separate it from direct-execution siblings 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?

The description gives no explicit when-to-use or when-not-to-use guidance and never references alternative tools. 'For a task such as weather, search, scrape, or voice' only implies a generic use case; it does not tell an agent when this index should be chosen over sibling tools that actually perform the requested operation. No exclusions or conditions are provided.

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