import_csm_model · Blender MCP: Risk & Policy

WHAT IT DOES

What import_csm_model does on BlenderMCP

AI agents use import_csm_model to create or update resources in BlenderMCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your BlenderMCP environment.

WHY IT NEEDS A POLICY

Why import_csm_model needs a policy

This tool creates new data (3D model objects) in the Blender scene, which is reversible via undo or deletion. It does not execute arbitrary code, delete existing data, or cause financial impact. The moderate severity reflects that importing large or malicious models could degrade performance or consume resources, but the operation itself is non-destructive and can be undone.

From the tool's definition Tool name 'import_csm_model' and description 'Import a 3D model from CSM.ai into the Blender scene' indicates creation/modification of scene data by adding new objects to the active Blender project.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

import_csm_model Rate-limited

import_csm_model 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": {
    "import_csm_model": {
      "limits": [
        {
          "counter": "import_csm_model_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches BlenderMCP, so you can run agents against it safely.

FAQ

Questions about import_csm_model

What does the import_csm_model tool do? +

Import a 3D model from CSM.ai into the Blender scene. It is categorised as a Write tool in the BlenderMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on import_csm_model? +

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

What risk level is import_csm_model? +

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

Can I rate-limit import_csm_model? +

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

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

import_csm_model is provided by the Blender MCP server (richard-devbot/blender-mcp-csm). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.