Update domain nameservers

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

Annotations already indicate destructive and non-read-only behavior, and the description adds a useful consequence: improper nameserver configuration can make the domain unresolvable or unavailable. It does not detail whether existing nameservers are overwritten, but the warning adds meaningful risk context beyond the structured hints.

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 three short sentences with the action and warning up front. The first and last sentences are somewhat redundant ('Set nameservers' vs 'configure custom DNS hosting'), which prevents a perfect score.

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 simple 5-parameter operation with full schema coverage and safety annotations, this description is largely sufficient: it states the action, the use case, and the key risk. The absence of an output schema is not a major gap for this kind of write operation.

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 documents every parameter. The description adds no extra meaning about the format or semantics of domain/ns1/ns2/ns3/ns4, earning the baseline score of 3.

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 'Set nameservers for a specified domain', a specific verb plus resource, and adds the DNS-hosting context. It is clear and not tautological, but it does not explicitly distinguish this tool from sibling tools such as VPS_setNameserversV1 or DNS_updateDNSRecordsV1.

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 final sentence gives an explicit use case: 'Use this endpoint to configure custom DNS hosting for domains.' This provides clear context for when the tool is appropriate, though it does not mention exclusions or alternative tools.

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