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 a deletion, implying a destructive operation, but doesn't mention critical details like required permissions, whether the deletion is reversible, potential impacts on load balancer availability, or error conditions. This leaves significant gaps for safe and effective use.

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 with clear sections for the main purpose, arguments, and returns, making it easy to scan. It's concise with no redundant information, though the 'Returns' section could be more specific (e.g., detailing the status message format) to enhance utility without adding bulk.

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 tool with no annotations and no output schema, the description is incomplete. It lacks details on behavioral aspects (e.g., side effects, error handling), and while it covers the parameter, it doesn't provide enough context for safe operation in a production environment, given the tool's potential impact.

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 includes an 'Args' section that documents the single parameter 'load_balancer_id' with examples (e.g., 'web-lb', UUID), adding meaningful context beyond the bare schema. However, it doesn't fully compensate for the lack of schema descriptions, as it doesn't explain format constraints or validation rules.

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 SSL certificate') and target resource ('from a load balancer'), making the purpose specific and understandable. However, it doesn't differentiate from sibling tools like 'delete_cdn_ssl_certificate' or other delete operations, which would require explicit comparison to achieve a perfect score.

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?

No guidance is provided on when to use this tool versus alternatives, such as other SSL-related tools (e.g., 'delete_cdn_ssl_certificate') or general load balancer management tools. The description lacks context about prerequisites, consequences, or typical scenarios for invocation.

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