create_preview_deployment

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only mentions 'when configured' as a condition but does not disclose side effects (e.g., triggering a build, potential cost), authentication requirements, return behavior, or failure modes. For a mutation tool, 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 a single concise sentence: 'Create a Vercel preview deployment when configured.' It is front-loaded with the action and contains no wasteful words. All eight words earn their place.

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 tool with no parameters, no annotations, and no output schema, the description is the only source of context. It is too minimal: it does not explain what happens after creation, how to check status (e.g., via get_preview_status), or what 'configured' entails. Given the side-effects of creation, more context is essential.

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 tool has zero parameters and schema description coverage is trivially 100%. The baseline for 0 params is 4, and the description does not need to explain parameter meaning. The description adds nothing about parameters, but none are needed.

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: 'Create a Vercel preview deployment.' This is a specific verb+resource that distinguishes it from sibling tools like request_production_deployment or get_preview_status. The phrase 'when configured' adds a condition but does not obscure the core purpose.

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 this tool is used for creating a preview deployment, and 'when configured' hints at a prerequisite. However, it does not explicitly state when to use this tool versus alternatives, nor mention any exclusions. The name alone differentiates from production deployment, but explicit guidance is lacking.

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