set_material_color

Set or create a simple color material on an object.

SERVERBlender Copilot MCP Server SOURCEdwgx/blender-copilot

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

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

WHAT IT DOES

What set_material_color does on Blender Copilot MCP Server

AI agents use set_material_color to create or update resources in Blender Copilot MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Blender Copilot MCP Server environment.

RISK

Why set_material_color is rated Medium

This tool creates or updates material properties on 3D objects, which is a reversible modification of scene data. It does not execute external code, delete data, or trigger financial transactions. While it modifies state, the changes can be undone (Blender's undo system) and are non-destructive.

From the tool's definition Tool performs 'Set or create a simple color material on an object' — modifies object properties in Blender's scene state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_material_color 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 set_material_color, this is the rule to start with:

set_material_color Rate-limited

set_material_color stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_material_color": {
      "limits": [
        {
          "counter": "set_material_color_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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 set_material_color call is checked against it from then on.

FAQ

Questions about set_material_color

What does the set_material_color tool do? +

Set or create a simple color material on an object. It is categorised as a Write tool in the Blender Copilot MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_material_color? +

Register the Blender Copilot MCP Server MCP server in PolicyLayer and add a rule for set_material_color: 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 set_material_color? +

set_material_color is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_material_color? +

Yes. Add a rate_limit block to the set_material_color 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 set_material_color completely? +

Set action: deny in the PolicyLayer policy for set_material_color. 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 set_material_color? +

set_material_color 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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