geonodes_create

Create a Geometry Nodes modifier on an object with a new node tree.

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/geonodes-create.md

WHAT IT DOES

What geonodes_create does on Blender Copilot MCP Server

AI agents use geonodes_create 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 geonodes_create is rated Medium

This tool creates a new modifier and associated node tree on a Blender object. While it modifies scene state, the operation is reversible (the modifier can be deleted or the undo stack used). It does not execute arbitrary code, delete data irreversibly, or move money. It falls squarely into Write category as a creation/modification action with side effects limited to the 3D scene structure.

From the tool's definition Tool description states 'Create a Geometry Nodes modifier on an object with a new node tree' — the word 'Create' indicates data creation/modification. This modifies the object's modifiers stack in Blender, a reversible operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

geonodes_create Rate-limited

geonodes_create 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": {
    "geonodes_create": {
      "limits": [
        {
          "counter": "geonodes_create_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 geonodes_create call is checked against it from then on.

FAQ

Questions about geonodes_create

What does the geonodes_create tool do? +

Create a Geometry Nodes modifier on an object with a new node tree. 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 geonodes_create? +

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

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

Can I rate-limit geonodes_create? +

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

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

geonodes_create 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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