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 mentions 'Smart identifier resolution' which adds useful context, but fails to cover critical aspects like whether this is a read-only operation, potential rate limits, authentication needs, or error handling. For a tool with zero annotation coverage, this is a significant gap.

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 efficiently structured with a clear purpose statement, identifier resolution note, and separate Args/Returns sections. Every sentence adds value without redundancy, making it easy to scan and understand quickly.

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 no annotations, no output schema, and a single parameter with 0% schema coverage, the description does an adequate job by explaining the parameter and return value. However, it lacks details about the 'comprehensive summary' content, error conditions, or behavioral traits, leaving room for improvement in 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?

The schema has 0% description coverage for the single parameter, but the description compensates well by explaining 'server_identifier: The bare metal server label, hostname, or ID' and adding 'Smart identifier resolution'. This provides clear meaning beyond the basic schema, though it could specify format constraints or 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 tool's purpose: 'Get a comprehensive summary of a bare metal server' with the verb 'Get' and resource 'bare metal server summary'. It distinguishes from siblings like 'get_bare_metal_server' by specifying 'summary' rather than full details, though the distinction could be more explicit.

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 implies usage through 'Smart identifier resolution: use server label, hostname, or UUID', suggesting when to use this tool for flexible identification. However, it lacks explicit guidance on when to choose this over similar tools like 'get_bare_metal_server' or 'list_bare_metal_servers', leaving some ambiguity.

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