toggle_smooth_shading · Blender MCP: Risk & Policy

WHAT IT DOES

What toggle_smooth_shading does on BlenderMCP

AI agents use toggle_smooth_shading 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 toggle_smooth_shading needs a policy

Based on the tool name, this likely toggles smooth shading on a 3D object in Blender, which is a reversible modification to shading properties. This fits the Write category. However, since the description is empty, confidence is reduced. Given the sibling tools context (modifiers, mesh operations in Blender), this is most likely a Write operation modifying object display properties.

From the tool's definition Tool name: toggle_smooth_shading; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

toggle_smooth_shading Rate-limited

toggle_smooth_shading 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": {
    "toggle_smooth_shading": {
      "limits": [
        {
          "counter": "toggle_smooth_shading_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 toggle_smooth_shading

What does the toggle_smooth_shading tool do? +

toggle_smooth_shading. 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 toggle_smooth_shading? +

Register the Blender MCP server in PolicyLayer and add a rule for toggle_smooth_shading: 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 toggle_smooth_shading? +

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

Can I rate-limit toggle_smooth_shading? +

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

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

toggle_smooth_shading is provided by the Blender MCP server (shirshovdim/retopoflow_blender_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.