Vultr MCP

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 tool deletes a domain and all its records, implying a destructive, irreversible action, but lacks details on permissions required, rate limits, error conditions, or confirmation prompts. This is inadequate for a high-stakes mutation tool.

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 front-loaded with the core action in the first sentence, followed by brief Arg/Return sections. It avoids redundancy and wastes no words, though the structure is slightly informal with 'Args'/'Returns' labels instead of integrated prose.

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?

Given the tool's destructive nature, lack of annotations, and presence of an output schema (which covers return values), the description is minimally adequate but incomplete. It explains what the tool does and the parameter but omits critical behavioral details like safety warnings or usage context, leaving gaps for the agent.

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 description adds meaningful context for the single parameter 'domain' by specifying it as 'The domain name to delete', which clarifies its purpose beyond the schema's basic string type. With 0% schema description coverage and only one parameter, this compensation is sufficient, though not exhaustive (e.g., no format examples).

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 action ('Delete') and resource ('a DNS domain and all its records'), making the purpose specific and understandable. However, it doesn't explicitly differentiate from sibling tools like 'delete_record' or 'delete_cdn_zone', which reduces clarity about when to choose this specific deletion tool.

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 provides no guidance on when to use this tool versus alternatives like 'delete_record' or 'delete_cdn_zone', nor does it mention prerequisites, consequences, or appropriate contexts. The agent must infer usage from the name and description alone without explicit direction.

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