Unset default WHOIS profile

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

Beyond the annotations, the description usefully clarifies that unsetting the default is not destructive to the profile itself: 'The profile itself is kept, it is only no longer pre-selected for its TLD.' This adds meaningful behavioral nuance and aligns with the destructiveHint annotation without contradicting it.

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 concise and well-structured: the core action is front-loaded, followed by a clarifying non-destructive note and a practical use-case sentence. Every sentence earns its place with no redundant filler.

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 single-parameter, mutation-style tool with annotations covering idempotency and destructiveness, the description provides sufficient operational context. It explains what happens to the profile, what changes for the TLD, and why an agent would invoke this endpoint, so nothing critical is missing.

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?

The only parameter, whoisId, is fully described in the schema as 'WHOIS ID', giving 100% schema coverage. The description does not add parameter-specific guidance beyond the tool's context, so the baseline score of 3 is appropriate.

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 action ('Unset WHOIS contact profile as default') and clearly distinguishes it from deleting the profile by noting 'The profile itself is kept'. It also contrasts with setting a default, making the endpoint's purpose unambiguous among sibling tools like domains_setWHOISProfileAsDefaultV1 and domains_deleteWHOISProfileV1.

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 gives clear usage context: 'Use this endpoint to stop reusing contact information for new registrations.' It does not explicitly mention when not to use it or list alternatives, but the intended scenario is clear enough for an agent to select this tool appropriately.

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