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 action is 'Stop', implying a mutation that likely changes server state, but lacks details on permissions required, whether the stop is graceful or forced, potential side effects, or error conditions. The mention of 'Success message' hints at output but is vague.

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 purpose, followed by brief sections for args and returns, making it efficient and well-structured. However, the 'Returns' section is overly vague ('Success message'), which slightly reduces effectiveness without adding unnecessary length.

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 has no annotations, no output schema, and low schema coverage, the description is minimally adequate. It covers the basic action and parameter semantics but lacks details on behavioral traits, error handling, and output specifics, which are important for a mutation tool like stopping a server.

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 description coverage is 0%, but the description compensates by explaining that 'server_identifier' accepts 'server label, hostname, or UUID', adding semantic meaning beyond the schema's basic string type. Since there's only one parameter, this is sufficient for clarity, though it doesn't detail 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 verb 'Stop' and resource 'bare metal server', making the purpose specific and understandable. It distinguishes from siblings like 'reboot_bare_metal_server' by specifying a stop action, though it doesn't explicitly contrast with similar tools like 'stop' (without 'bare_metal_server') in the sibling list.

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, such as 'reboot_bare_metal_server' or general 'stop' tools in the sibling list. It mentions smart identifier resolution but doesn't specify prerequisites, exclusions, or contextual usage scenarios.

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