create_link_v3 · Claude-Modeling-Labs MCP Server MCP

WHAT IT DOES

What create_link_v3 does on Claude-Modeling-Labs MCP Server

AI agents use create_link_v3 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_link_v3 needs a policy

This tool creates (writes) a network link configuration, which is a data modification operation. It is reversible because links can be deleted or modified. It does not execute arbitrary code, delete data irreversibly, or involve financial transactions. The medium severity reflects that misconfiguration could disrupt lab environments, but the blast radius is limited to the specific lab topology being modified.

From the tool's definition The tool 'create_link_v3' with description 'Create a link between two interfaces in a lab' performs a create operation that modifies the lab topology by establishing a connection between network interfaces. This is a reversible configuration change.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_link_v3 Rate-limited

create_link_v3 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_link_v3": {
      "limits": [
        {
          "counter": "create_link_v3_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_link_v3

What does the create_link_v3 tool do? +

Create a link between two interfaces in a lab. 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_link_v3? +

Register the Claude-Modeling-Labs MCP Server MCP server in PolicyLayer and add a rule for create_link_v3: 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_link_v3? +

create_link_v3 is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_link_v3? +

Yes. Add a rate_limit block to the create_link_v3 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_link_v3 completely? +

Set action: deny in the PolicyLayer policy for create_link_v3. 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_link_v3? +

create_link_v3 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.