domain_to_ip

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Domain to IP' reveals nothing about what the tool actually does behaviorally - whether it performs a DNS lookup, returns IPv4/IPv6 addresses, handles multiple IPs, includes timing information, has rate limits, requires authentication, or what format the output takes. The description is completely inadequate for understanding the tool's behavior.

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?

While technically concise with only three words, this is a case of under-specification rather than effective conciseness. The description fails to convey necessary information and doesn't follow the principle that 'every sentence should earn its place' - in this case, the description doesn't even form a complete sentence that provides meaningful guidance to an AI agent.

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 no annotations, no output schema, and a description that provides almost no information, this is completely inadequate for a tool that presumably performs network operations. The description fails to explain what the tool returns, how it behaves, when to use it, or any operational characteristics. For a tool that likely involves external network calls and DNS resolution, this level of documentation is dangerously insufficient.

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% with the single 'url' parameter well-documented in the schema. The description adds zero information about parameters beyond what's already in the schema. With complete schema coverage and no parameters mentioned in the description, this meets the baseline of 3 where the schema does the heavy lifting for parameter documentation.

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 'Domain to IP' is essentially a tautology that restates the tool name without specifying the action. It doesn't clearly state what the tool does (e.g., 'Resolves a domain name to its corresponding IP address' or 'Performs DNS lookup to find IP addresses for a given domain'). While the name implies conversion, the description adds no meaningful clarification beyond the name itself.

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 provides absolutely no guidance on when to use this tool versus alternatives. There are multiple sibling tools that might overlap (dns_records_checker, whois_domain_lookup, etc.), but the description offers no context about when this specific tool is appropriate versus those alternatives. No prerequisites, limitations, or use cases are mentioned.

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