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create_material_network

Organize shading and materials by creating a material network (matnet) node at a specified parent path in a Houdini scene.

Instructions

Create a material network (matnet) node.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameNomatnet
parent_pathNo/obj
Behavior2/5

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 only says 'Create' without disclosing side effects, whether it modifies the scene, requires a specific parent context, or is reversible. 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.

Conciseness4/5

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

The description is a single, concise sentence with no redundant words, and it is front-loaded with the core action. However, given the need for more information (parameters, usage), it is arguably under-specified, reducing the score from 5.

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?

The tool has no output schema and only 2 parameters, but the description barely explains what the node is or where it is created. It does not mention parent_path behavior, defaults, or any post-creation effects. The description is not sufficient for an agent to safely and correctly invoke the tool.

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

Parameters1/5

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

Schema description coverage is 0%, and the description does not mention either parameter (name or parent_path). It provides no hints about defaults, allowed values, or how these parameters affect the created node. The description fails to compensate for the lack of schema-level detail.

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 states the action (create) and the specific resource (a material network/matnet node), making it distinct from the generic create_node. However, it does not explicitly differentiate from other material-related tools like create_material_workflow, and lacks additional context about the node's role.

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 use this tool versus alternatives such as create_node or create_material_workflow. There is no mention of prerequisites, common scenarios, or when not to use it.

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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