batch_assign_material

Assign the same material to multiple objects at once.

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/batch-assign-material.md

WHAT IT DOES

What batch_assign_material does on Blender Copilot MCP Server

AI agents use batch_assign_material 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 batch_assign_material is rated Medium

This tool creates or modifies material assignments across multiple objects, which is a reversible write operation. The severity is medium because while materials can be reassigned, the operation affects multiple objects simultaneously, increasing potential for unintended scene modifications if an AI agent misuses it.

From the tool's definition Tool name 'batch_assign_material' and description 'Assign the same material to multiple objects at once' indicate modification of object properties in the Blender scene without deletion or irreversible destruction.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

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

batch_assign_material Rate-limited

batch_assign_material 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": {
    "batch_assign_material": {
      "limits": [
        {
          "counter": "batch_assign_material_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 batch_assign_material call is checked against it from then on.

FAQ

Questions about batch_assign_material

What does the batch_assign_material tool do? +

Assign the same material to multiple objects at once. 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 batch_assign_material? +

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

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

Can I rate-limit batch_assign_material? +

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

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

batch_assign_material 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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