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adbutler

AdButler MCP Server

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by adbutler

vast42_create_mezzanine

Create a VAST 4.2 mezzanine with a chosen name and MIME type for use in AdButler video advertising.

Instructions

Create a VAST 4.2 mezzanine

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameNoMezzanine name
mime_typeNoMIME type
Behavior1/5

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

With no annotations present, the description carries the full burden of behavioral disclosure. 'Create' implies a write operation, but no details are given about side effects, validation, required relationships, or what the response might be. This is minimal and non-transparent.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, succinct sentence that front-loads the verb and resource. It is compact and easy to parse, though it is too sparse to convey critical contextual details, so it earns a 4 rather than 5.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a create operation with no annotations, no output schema, and only two generic parameters, the description is severely incomplete. It does not explain what a mezzanine is, whether a parent VAST asset is required, or what the operation returns, making it inadequate for confident invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema covers 100% of parameters, both with descriptions ('Mezzanine name' and 'MIME type'). The description adds no additional meaning beyond the schema, but the baseline of 3 is appropriate because the schema is self-sufficient.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Create') and the resource ('VAST 4.2 mezzanine'). It distinguishes this from the many other create tools by specifying the exact resource type and version, and is unambiguous about what the tool does.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided about when to use this tool versus alternatives, such as vast42_update_mezzanine or vast42_list_mezzanines. There is no mention of prerequisites, context, or scenarios where this operation is appropriate.

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

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