Suggest domain names from a description

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

Annotations already mark the tool as read-only and non-destructive. The description adds valuable behavioral context by stating that suggestions are AI-generated and non-deterministic across calls, and it discloses a specific rate limit of 90 requests per minute.

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?

Four short sentences, each earning its place: the purpose, the non-deterministic behavior, the rate limit, and the specific use case. Information is front-loaded and there is no redundant or filler text.

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 simple, two-parameter, read-only tool, the description covers purpose, input type, behavioral caveats, and rate limiting. It could further describe the exact response shape, but the absence of an output schema is partially mitigated by the clear phrase 'suggest available domain names.'

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 schema already documents both parameters. The description adds little beyond restating that the input is a free-text project description and that the limit controls the number of suggestions, which makes baseline 3 appropriate.

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?

States a specific action and resource: suggest available domain names from a free-text description. The phrase 'when you only know what the website is about' clearly differentiates it from sibling tools like domains_suggestDomainNamesFromADomainV1.

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?

Explicitly says to use this endpoint when only a project description is known, which gives clear usage context. It does not explicitly mention alternatives or when not to use it, so it stops short of a full exclusion-based guideline.

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