disconnect_niagara_pins

Break all connections on a specific pin of a node in a scratch pad graph.

SERVERUnreal-MCP SOURCEaadeshrao123/unreal-mcp

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/aadeshrao123-unreal-mcp/disconnect-niagara-pins.md

WHAT IT DOES

What disconnect_niagara_pins does on Unreal-MCP

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

RISK

Why disconnect_niagara_pins is rated Medium

The tool modifies graph topology by severing pin connections in a Niagara scratch pad, which qualifies as Write (reversible modification of data structure). It does not delete nodes or assets (not Destructive), does not execute arbitrary code or trigger external operations (not Execute), and has no financial impact.

From the tool's definition Tool description states 'Break all connections on a specific pin' — this modifies the graph structure by removing connections, which are data relationships within the Niagara VFX system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs disconnect_niagara_pins safely

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

disconnect_niagara_pins Rate-limited

disconnect_niagara_pins 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": {
    "disconnect_niagara_pins": {
      "limits": [
        {
          "counter": "disconnect_niagara_pins_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 Unreal-MCP, apply this rule, and every disconnect_niagara_pins call is checked against it from then on.

FAQ

Questions about disconnect_niagara_pins

What does the disconnect_niagara_pins tool do? +

Break all connections on a specific pin of a node in a scratch pad graph. It is categorised as a Write tool in the Unreal-MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on disconnect_niagara_pins? +

Register the Unreal MCP server in PolicyLayer and add a rule for disconnect_niagara_pins: 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 Unreal-MCP. Nothing to install.

What risk level is disconnect_niagara_pins? +

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

Can I rate-limit disconnect_niagara_pins? +

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

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

disconnect_niagara_pins is provided by the Unreal MCP server (aadeshrao123/unreal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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