material_list

List materials — on a specific object or all materials in the scene.

SERVERBlender Copilot MCP Server SOURCEdwgx/blender-copilot

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dwgx-blender-copilot/material-list.md

WHAT IT DOES

What material_list does on Blender Copilot MCP Server

AI agents call material_list to retrieve information from Blender Copilot MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why material_list is rated Low

This tool retrieves and enumerates existing materials without creating, modifying, deleting, or executing external operations. It is a pure read operation that gathers information about the scene state. The low severity reflects minimal risk if misused by an AI agent—querying material data poses no destructive or financial harm.

From the tool's definition Tool name 'material_list' and description 'List materials — on a specific object or all materials in the scene' indicate a query/retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs material_list safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Blender Copilot MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For material_list, this is the rule to start with:

material_list Allowed

material_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "material_list": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Blender Copilot MCP Server, apply this rule, and every material_list call is checked against it from then on.

FAQ

Questions about material_list

What does the material_list tool do? +

List materials — on a specific object or all materials in the scene. It is categorised as a Read tool in the Blender Copilot MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on material_list? +

Register the Blender Copilot MCP Server MCP server in PolicyLayer and add a rule for material_list: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Blender Copilot MCP Server. Nothing to install.

What risk level is material_list? +

material_list is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit material_list? +

Yes. Add a rate_limit block to the material_list rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block material_list completely? +

Set action: deny in the PolicyLayer policy for material_list. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides material_list? +

material_list is provided by the Blender Copilot MCP Server MCP server (dwgx/blender-copilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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