VPS_setNameserversV1

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

With no annotations, the description must cover behavioral traits. It warns about potential DNS resolution issues but does not disclose whether the operation is synchronous, requires permissions, or affects existing settings. More detail on side effects would improve score.

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 clear sentences with no extraneous text. It starts with the action, adds a warning, then states usage. Efficiently conveys key information.

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?

The description covers basic purpose and a risk but lacks explanation of parameter behavior (e.g., what if only ns1 is provided) and does not describe return values. For a simple mutation tool with 4 params and no output schema, additional context on expected input formats would enhance completeness.

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 coverage is 100%, but parameter descriptions in the schema are minimal (e.g., 'ns1 parameter'). The description does not add explanation of expected formats (IP addresses vs domain names) or the role of optional ns2/ns3 fields. Baseline is 3 due to high coverage, but no added value.

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 it sets nameservers for a virtual machine. It distinguishes from sibling tools like VPS_setHostnameV1 or DNS_updateDNSRecordsV1 by focusing specifically on nameserver configuration for VPS instances.

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 includes 'Use this endpoint to configure custom DNS resolvers for VPS instances,' specifying when to use it. It also warns of consequences from improper configuration. However, it lacks explicit alternatives or when not to use it.

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