remesh_voxel · Blender MCP: Risk & Policy

WHAT IT DOES

What remesh_voxel does on BlenderMCP

AI agents invoke remesh_voxel to trigger actions in BlenderMCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why remesh_voxel needs a policy

Based on the tool name, remesh_voxel likely performs a voxel remesh operation in Blender, which modifies the mesh geometry of a 3D object. Given the server context (BlenderMCP executes Python scripts in Blender and manipulates objects), this is likely an Execute-level operation that triggers a Blender operation. It could also be Write since it modifies mesh data.

From the tool's definition Tool name 'remesh_voxel' on BlenderMCP server; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

remesh_voxel Rate-limited

remesh_voxel 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.

View as policy code

policy.json

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

RATE-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 remesh_voxel

What does the remesh_voxel tool do? +

remesh_voxel. It is categorised as a Execute tool in the BlenderMCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on remesh_voxel? +

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

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

Can I rate-limit remesh_voxel? +

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

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

remesh_voxel 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.