registerDomainDrop

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. It only mentions that requests are 'Always sent to /apibatch' and links to an API reference. It does not disclose that this is a financially binding registration, whether it can fail because another registrar catches the domain first, what happens on success, or any response behavior. This is insufficient for a mutation tool.

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 a single concise sentence that communicates the core purpose and the endpoint routing, followed by a useful reference link. It is front-loaded and has no filler, though it could include behavioral caveats without bloating the 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 domain-registration action with four parameters, no output schema, and no annotations, the description is too thin. It leaves out what the response contains, whether the operation can silently fail on a non-dropping domain, what years means in this context, and any conditions needed for a successful drop-catch. The API reference link helps but does not make the definition self-sufficient.

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%, so the structured schema already documents all four parameters, including the meaning of 'private' values. The description adds no parameter-level detail beyond the schema, so the baseline of 3 applies. The link to the API reference is a minor supplement but not embedded parameter semantics.

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 states a specific verb and resource: 'Register a dropping domain (drop-catch)'. This clearly identifies the action and differentiates it from the sibling registerDomain (normal registration), renewDomain, and checkRegisterAvailability. The parenthetical 'drop-catch' adds precision that disambiguates this from other domain operations.

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 intended context (registering a domain that is dropping/expiring) is implied by the phrase 'dropping domain', but no explicit guidance is given about when to prefer this over registerDomain or when not to use it. It does not name alternatives or exclusion conditions, leaving the agent to infer usage from the domain-specific term.

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