transferDomain

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

With no annotations, the description carries the burden of behavioral disclosure. It clearly flags that this operation spends account funds and usually requires an EPP/auth code, which are critical behavioral facts for a mutation. It does not describe post-transfer timing or failure modes, but the key financial side effect is explicit.

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?

Three short sentences front-load the primary action, then immediately state the critical side effect and prerequisite, with an API reference link. No filler or unnecessary detail.

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?

Despite a rich 26-parameter schema, this is a financially impactful operation with no output schema and no annotations. The description does not explain expected return values, what happens after a transfer is started, or how to choose among contact fields, contact_id, and TLD-specific options, leaving substantial context missing for correct invocation.

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 schema already explains every parameter. The description adds only minimal semantic nuance—that the auth code is 'usually required'—and does not map the many optional contact and TLD-specific fields to usage scenarios, so it does not substantially exceed the baseline.

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 opens with a specific verb and resource: 'Start an inbound domain transfer.' 'Inbound' plus 'transfer' clearly separates this from registering, renewing, or pushing domains, and the mention of EPP/auth code reinforces the transfer context.

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 implies when to use it: to begin moving a domain into the account, and notes prerequisites (EPP/auth code) and a consequence (spends funds). However, it does not explicitly name alternatives such as checkTransferAvailability or registerDomain, so the agent must infer routing from sibling names and the word 'inbound.'

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