generate_scene_script

Generate a bpy Python script from a JSON scene description WITHOUT executing it.

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/generate-scene-script.md

WHAT IT DOES

What generate_scene_script does on Blender Copilot MCP Server

AI agents use generate_scene_script 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 generate_scene_script is rated Medium

The tool creates and outputs a Python script (reversible artifact) from input parameters. While the generated script could potentially be destructive if later executed, this tool itself does not execute code—it only writes/generates it. This falls into Write category.

From the tool's definition Tool description states it 'Generate[s] a bpy Python script from a JSON scene description WITHOUT executing it' — the action is code generation/creation of a script artifact, not execution.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

generate_scene_script Rate-limited

generate_scene_script 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": {
    "generate_scene_script": {
      "limits": [
        {
          "counter": "generate_scene_script_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 generate_scene_script call is checked against it from then on.

FAQ

Questions about generate_scene_script

What does the generate_scene_script tool do? +

Generate a bpy Python script from a JSON scene description WITHOUT executing it. 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 generate_scene_script? +

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

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

Can I rate-limit generate_scene_script? +

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

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

generate_scene_script 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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