bmesh_operation

A execute tool on the Blender Copilot MCP server.

SERVERBlender Copilot MCP Server SOURCEdwgx/blender-copilot

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dwgx-blender-copilot/bmesh-operation.md

WHAT IT DOES

What bmesh_operation does on Blender Copilot MCP Server

AI agents invoke bmesh_operation to trigger actions in Blender Copilot MCP Server. 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.

RISK

Why bmesh_operation is rated High

BMesh is Blender's mesh editing API that allows arbitrary mesh operations including creation, modification, and deletion of geometry. The name implies execution of mesh operations, which could range from simple edits to destructive geometry changes. Without a description, confidence is reduced, but the 'operation' suffix suggests it executes actions rather than merely reading data.

From the tool's definition Tool name 'bmesh_operation' — no description provided.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs bmesh_operation safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Blender Copilot MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For bmesh_operation, this is the rule to start with:

bmesh_operation Rate-limited

bmesh_operation 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": {
    "bmesh_operation": {
      "limits": [
        {
          "counter": "bmesh_operation_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Blender Copilot MCP Server, apply this rule, and every bmesh_operation call is checked against it from then on.

FAQ

Questions about bmesh_operation

What does the bmesh_operation tool do? +

bmesh_operation is a execute tool on the Blender Copilot MCP Server MCP server. It is categorised as a Execute tool in the Blender Copilot MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on bmesh_operation? +

Register the Blender Copilot MCP Server MCP server in PolicyLayer and add a rule for bmesh_operation: 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 Copilot MCP Server. Nothing to install.

What risk level is bmesh_operation? +

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

Can I rate-limit bmesh_operation? +

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

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

bmesh_operation is provided by the Blender Copilot MCP Server MCP server (dwgx/blender-copilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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