create_interface · Claude-Modeling-Labs MCP Server MCP

WHAT IT DOES

What create_interface does on Claude-Modeling-Labs MCP Server

AI agents use create_interface to create or update resources in Claude-Modeling-Labs MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude-Modeling-Labs MCP Server environment.

WHY IT NEEDS A POLICY

Why create_interface needs a policy

The tool creates a new interface on an existing node, which is a reversible modification to lab configuration data. It does not execute arbitrary code, delete resources, or move money. The blast radius is medium because misconfiguration could affect lab functionality or network simulation fidelity, but changes are easily reversible and scoped to a single lab environment.

From the tool's definition Tool name 'create_interface' and description 'Create an interface on a node' indicate data creation/modification within a network lab environment. This is a write operation that modifies the configuration of lab infrastructure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_interface Rate-limited

create_interface 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": {
    "create_interface": {
      "limits": [
        {
          "counter": "create_interface_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 Claude-Modeling-Labs MCP Server, so you can run agents against it safely.

FAQ

Questions about create_interface

What does the create_interface tool do? +

Create an interface on a node. It is categorised as a Write tool in the Claude-Modeling-Labs 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 create_interface? +

Register the Claude-Modeling-Labs MCP Server MCP server in PolicyLayer and add a rule for create_interface: 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 Claude-Modeling-Labs MCP Server. Nothing to install.

What risk level is create_interface? +

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

Can I rate-limit create_interface? +

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

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

create_interface is provided by the Claude-Modeling-Labs MCP Server MCP server (mediocretriumph/claude-cml-toolkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.