// MCP TOOL REFERENCE

execute_blender_code

Execute arbitrary Python code in Blender

Runs arbitrary code with full Blender access

Part of the Blender MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

// WHEN AI AGENTS USE THIS TOOL

AI agents invoke execute_blender_code to trigger processes or run actions in Blender. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

// WHY ENFORCE A POLICY ON EXECUTE_BLENDER_CODE

execute_blender_code can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.

// RECOMMENDED POLICY

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

blender.yaml

tools:
  execute_blender_code:
    rules:
      - action: allow
        rate_limit:
          max: 10
          window: 60
        validate:
          required_args: true

See the full Blender policy for all 22 tools.

// DETAILS

Tool Name execute_blender_code

Category Execute

MCP Server Blender MCP Server

Risk Level High

// MORE BLENDER TOOLS

Write download_polyhaven_asset Write download_sketchfab_model Write generate_hunyuan3d_model Write generate_hyper3d_model_via_images Write generate_hyper3d_model_via_text Write import_generated_asset Write import_generated_asset_hunyuan Write set_texture

View all 22 tools →

// WHAT CAN GO WRONG

Agents calling execute-class tools like execute_blender_code have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER EXECUTE TOOLS ACROSS MCP SERVERS

Other tools in the Execute risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

Agent Passport System — Cryptographic Identity for AI Agents commerce_preflight Agent Passport System — Cryptographic Identity for AI Agents execute_with_context Agent Passport System — Cryptographic Identity for AI Agents gateway_execute_approval Agent Passport System — Cryptographic Identity for AI Agents governance_360 Agent Passport System — Cryptographic Identity for AI Agents parse_governance_block_html AgentClear — API Marketplace for AI Agents call_service

// IN CONTEXT OF HIGH RISK

execute_blender_code is one of the high-risk operations in Blender. For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.

// RELATED READING

// FAQ

What does the execute_blender_code tool do? +

Execute arbitrary Python code in Blender. It is categorised as a Execute tool in the Blender 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? +

Add a rule in your Intercept YAML policy under the tools section for execute_blender_code. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Blender MCP server.

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 Intercept 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 Intercept 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 server (@ahujasid/blender-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

execute_blender_code

Enforce policies on Blender