curve_create_nurbs

A write tool on the Blender Copilot MCP server.

SERVERBlender Copilot MCP Server SOURCEdwgx/blender-copilot

Medium RISK CLASS

Category Write

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/curve-create-nurbs.md

WHAT IT DOES

What curve_create_nurbs does on Blender Copilot MCP Server

AI agents use curve_create_nurbs to create or update resources in Blender Copilot MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Blender Copilot MCP Server environment.

RISK

Why curve_create_nurbs is rated Medium

Creating NURBS curves is a reversible write operation that adds new data to the Blender scene. This is not destructive (curves can be deleted/undone), not execution of arbitrary code, and not read-only. The medium severity reflects that while scene modifications are typically non-critical, bulk or malicious curve creation could degrade scene performance or flood the project.

From the tool's definition Tool name 'curve_create_nurbs' indicates creation of NURBS curve objects in Blender; description is empty but function name strongly suggests a create operation that modifies the scene by adding new geometry.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs curve_create_nurbs 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 curve_create_nurbs, this is the rule to start with:

curve_create_nurbs Rate-limited

curve_create_nurbs 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": {
    "curve_create_nurbs": {
      "limits": [
        {
          "counter": "curve_create_nurbs_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 curve_create_nurbs call is checked against it from then on.

FAQ

Questions about curve_create_nurbs

What does the curve_create_nurbs tool do? +

curve_create_nurbs is a write tool on the Blender Copilot MCP Server MCP server. It is categorised as a Write tool in the Blender Copilot MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on curve_create_nurbs? +

Register the Blender Copilot MCP Server MCP server in PolicyLayer and add a rule for curve_create_nurbs: 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 curve_create_nurbs? +

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

Can I rate-limit curve_create_nurbs? +

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

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

curve_create_nurbs 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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