execute_blender_code

THE RISK

High Risk

Why execute_blender_code needs a policy

This tool allows execution of arbitrary Python code in Blender, which can perform any operation Blender and the system permit: file I/O, network calls, process spawning, GPU manipulation, and modifications to the active scene or project files.

From the tool's definition Tool description states 'Execute arbitrary Python code in Blender' — the term 'arbitrary' combined with 'execute' indicates the tool runs attacker-controlled code within Blender's Python environment without restrictions.

Documented attack patterns abuse exactly the kind of access execute_blender_code gives an agent:

POLICY

How to control execute_blender_code

PolicyLayer is an MCP gateway — it sits between your AI agents and Blender MCP for Antigravity, and nothing reaches the server without passing your rules. This is the rule we recommend for execute_blender_code:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "execute_blender_code": {
      "limits": [
        {
          "counter": "execute_blender_code_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

execute_blender_code stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Blender MCP for Antigravity — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Blender MCP for Antigravity tools

Execute download_sketchfab_model Download and import a Sketchfab model by its UID. Execute generate_hunyuan3d_model generate_hunyuan3d_model Execute generate_hyper3d_model_via_images generate_hyper3d_model_via_images Execute generate_hyper3d_model_via_text generate_hyper3d_model_via_text Write download_polyhaven_asset download_polyhaven_asset Write import_generated_asset import_generated_asset Write import_generated_asset_hunyuan Import the asset generated by Hunyuan3D after the generation task is completed. Write set_texture Apply a previously downloaded Polyhaven texture to an object.

All 21 Blender MCP for Antigravity tools →

Execute tools on other servers

Android Forensics ADB MCP Server adb_shell_command EMBA-MCP run_emba_scan Frida Game Hacking MCP remove_breakpoint Procmon request_elevation

Go deeper

High-risk tools in Blender MCP for Antigravity → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about execute_blender_code

What does the execute_blender_code tool do? +

Execute arbitrary Python code in Blender. Make sure to do it step-by-step by breaking it into smaller chunks. It is categorised as a Execute tool in the Blender MCP for Antigravity MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on execute_blender_code? +

Register the Blender MCP for Antigravity MCP server in PolicyLayer and add a rule for execute_blender_code: 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 MCP for Antigravity. Nothing to install.

What risk level is execute_blender_code? +

execute_blender_code is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit execute_blender_code? +

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

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

execute_blender_code is provided by the Blender MCP for Antigravity MCP server (kc0ed/blender-mcp-for-antigravity). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Blender MCP for Antigravity tool call.

Start from Blender MCP for Antigravity, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →