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Rdap Lookup

util_rdap_lookup
Read-onlyIdempotent

Look up domain registration details including registrar, status, and dates for trust and compliance checks.

Instructions

Fetch registrar, status, and registration dates for trust, compliance, and domain ops. Delx Agent Utilities are separate from the free witness protocol and may expose x402 utility pricing.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
domainYesDomain to inspect
timeoutNoTimeout in seconds (1-15)
Behavior3/5

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

Annotations already indicate read-only, idempotent, and non-destructive behavior. The description adds context about pricing and separation from witness protocol, but does not contradict annotations and adds some value beyond them.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two clear sentences, front-loaded with the main purpose. The second sentence adds context but is slightly tangential, yet still earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity, good annotations, and 100% schema coverage, the description provides adequate context for an agent to use it effectively, though it omits specifics of the return value.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, with descriptions for both parameters. The description does not add additional meaning beyond the schema's parameter descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool fetches registrar, status, and registration dates for domains, using a specific verb and resource. It is distinct from sibling tools like util_dns_lookup but does not explicitly differentiate itself.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description does not provide explicit guidance on when to use this tool vs alternatives, nor does it mention when not to use it. It only vaguely references 'trust, compliance, and domain ops.'

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

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