ens_resolve

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

No annotations are provided, so the description carries full burden. It mentions pricing and a free tier, which aids cost awareness, but does not disclose whether the tool is read-only, what happens on error, or the nature of the result. Key behavioral traits are missing.

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 very short, including only essential elements like the label, pricing, and API link. It is front-loaded with the '[Blockchain]' category. However, the API URL line is not directly useful for tool selection and could be omitted for better conciseness.

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 tool has one parameter, no output schema, and no annotations, the description is inadequate. It does not explain what the tool returns, how to interpret results, or any error conditions. For a simple resolver, minimal completeness is lacking.

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 input schema fully describes the required 'name' parameter with the description 'ENS域名'. Since schema description coverage is 100%, the baseline is 3. The description adds no additional parameter context beyond what the schema already provides.

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 explicitly states 'ENS域名解析' (ENS domain resolution) in Chinese, clearly indicating the tool's function to resolve ENS domains. The '[Blockchain]' prefix provides context. However, it does not differentiate from similar tools like did_resolve or other domain-resolution tools among siblings.

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?

There is no guidance on when to use this tool versus alternatives. No prerequisites, exclusions, or conditions for use are mentioned. The description lacks any indication of appropriate use cases.

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