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 states 'reinstall' implies a destructive operation that likely wipes data and reinstalls the OS, but doesn't mention permissions required, whether it's reversible, downtime implications, or rate limits. This is inadequate for a mutation tool with zero annotation coverage.

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 structured sections for args and returns. It's efficient with minimal waste, though the 'smart identifier resolution' note could be integrated more smoothly into the args section.

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?

For a destructive mutation tool with no annotations and no output schema, the description is incomplete. It lacks critical behavioral details (e.g., data loss, auth needs), doesn't explain the return value ('reinstall operation details'), and provides minimal parameter guidance. This is insufficient for safe and effective tool invocation.

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 documentation. The description adds value by explaining 'server_identifier' accepts label, hostname, or UUID, and 'hostname' is optional for setting a new hostname. However, it doesn't cover format constraints, validation rules, or examples, leaving gaps for the two parameters.

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 ('reinstall') and resource ('bare metal server'), making the purpose specific and understandable. However, it doesn't explicitly differentiate from sibling tools like 'reinstall' (without 'bare metal server') or 'reboot_bare_metal_server', which could cause confusion about when to use each.

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 'reinstall' (for non-bare-metal servers) or 'reboot_bare_metal_server'. It mentions 'smart identifier resolution' but doesn't clarify prerequisites, dependencies, or scenarios where this tool is appropriate.

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