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adbutler

AdButler MCP Server

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by adbutler

vast_create_channel

Create a VAST channel for managing video ad inventory. Specify a name and optional description to set up the channel.

Instructions

Create a new VAST channel

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYesChannel name
descriptionNoChannel description
Behavior2/5

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

No annotations are present, so the description must carry the burden of behavioral disclosure. It only says 'Create a new VAST channel', which adds no behavioral details such as required preconditions, permissions, return value, or side effects. This is minimal and leaves the agent guessing.

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

Conciseness5/5

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

The description is a single, focused sentence with no wasted words. It is front-loaded and easy to parse.

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

Completeness2/5

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

For a create operation with no output schema and no annotations, the description should at least mention what the response contains or any operational context. It is too sparse to fully inform an agent about the tool's behavior.

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 schema already describes both parameters (name and description) with 100% coverage, so the description adds no additional parameter semantics. The baseline of 3 applies.

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

Purpose4/5

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

The description clearly identifies the action (create) and resource (VAST channel), and the 'VAST' qualifier helps distinguish from the sibling create_channel. However, it doesn't explicitly contrast with other vast_* create operations.

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

Usage Guidelines2/5

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

The description provides no guidance on when to prefer this tool over alternatives like vast_update_channel, vast_create_zone, or the non-VAST create_channel. It simply states the action without context or exclusions.

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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