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Glama

list_material_presets

List all available material presets with a brief description of each, helping you choose the right PBR material for a Blender scene or game asset.

Instructions

All material presets with a one-line description.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.0

TDQS

B3.4/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden, but it is a zero-parameter read-only enumeration with low behavioral risk. It does disclose the useful trait that each preset comes with a one-line description, which compensates in part for the absent output schema, yet it says nothing about ordering, pagination, or whether the returned names are usable by apply_material.

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?

A single short sentence with no filler, and the key entity (material presets) is front-loaded. Nothing could be trimmed without losing information.

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

Completeness3/5

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

For a trivial zero-param list tool this is nearly sufficient, and the description does hint at the returned content. However, with no annotations and no output schema, it leaves the agent guessing about return volume and how the listed preset names feed into downstream tools like apply_material.

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

Parameters4/5

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

The tool takes zero parameters, so the baseline of 4 applies. There is nothing for the description to clarify beyond what the empty schema already conveys.

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 states a concrete verb+resource pair ('list ... material presets') and even previews the return shape ('one-line description'). It is distinguishable from siblings like apply_material or search_assets, but it does not explicitly contrast itself with any of them.

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?

There is no statement of when to call this versus alternatives such as search_assets or apply_material, and no prerequisites or exclusions are given. The word 'All' weakly implies an unfiltered enumeration, but nothing routes the agent.

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