Vultr MCP

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

No annotations are provided, so the description carries the full burden. It mentions 'comprehensive network information with usage recommendations,' which adds value by hinting at the output's scope and utility. However, it doesn't disclose critical behavioral traits such as whether this is a read-only operation, potential rate limits, authentication needs, or error conditions. The description doesn't contradict annotations (none exist), but it's insufficient for a mutation-sensitive context.

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 well-structured and front-loaded: the first sentence states the purpose clearly. Additional sentences provide parameter details and return value context without redundancy. It's appropriately sized for a tool with two parameters, though the 'Smart identifier resolution' note could be integrated more seamlessly.

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 moderate complexity (2 parameters, no annotations, but has an output schema), the description is partially complete. It covers the purpose and parameters adequately, and the output schema likely handles return values. However, without annotations, it lacks behavioral context (e.g., safety, side effects), and sibling differentiation is missing, making it less complete for an AI agent's decision-making.

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 0%, so the schema provides no parameter details. The description compensates by explaining both parameters: 'identifier' as 'VPC/VPC 2.0 description or ID' and 'vpc_type' with its options ('vpc', 'vpc2', or 'auto'). This adds meaningful semantics beyond the bare schema. However, it doesn't cover parameter constraints, formats, or examples, leaving some gaps.

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 tool's purpose: 'Get comprehensive network information for VPC or VPC 2.0.' It specifies the verb ('Get') and resource ('network information for VPC or VPC 2.0'), making the action and target explicit. However, it doesn't differentiate from sibling tools like 'get_vpc2' or 'list_vpc2', which might provide similar or overlapping functionality.

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 some usage context: 'Smart identifier resolution: Use VPC/VPC 2.0 description or ID.' This implies when to use the tool (for retrieving network info) and hints at how to identify resources. However, it lacks explicit guidance on when to use this tool versus alternatives like 'get_vpc2' or 'list_vpc2', and doesn't mention prerequisites or exclusions.

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