InstaDomain

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states the action but omits whether removal is reversible, if there are rate limits, permission requirements, or what happens if called on an already-unlocked domain. Given output schema exists but isn't described, this is minimal disclosure.

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?

Two sentences with zero redundancy. The 'Args:' format is slightly documentation-heavy rather than conversational, but information density is high with no wasted words. Front-loaded with the action statement.

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?

Adequate for a single-parameter tool with an output schema present (so return values needn't be described). However, given the domain transfer context implied by sibling get_transfer_code, it should mention this is part of the domain transfer preparation workflow.

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?

With 0% schema description coverage, the description compensates effectively by defining order_id as 'The order ID of a completed domain purchase'—adding the critical qualifier that the purchase must be completed. It successfully documents the single parameter where the schema fails to.

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 clearly states the specific action ('Remove the registrar transfer lock') on a specific resource ('completed domain purchase'). It effectively distinguishes from siblings like buy_domain, renew_domain, or check_domain by focusing on the post-purchase transfer lock management.

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 phrase 'completed domain purchase' establishes a prerequisite (don't use on pending orders), but lacks explicit guidance on when to use this versus alternatives, or that it is typically required before using get_transfer_code for domain transfers.

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