build_material_function_graph

A execute tool on the Unreal- MCP server.

SERVERUnreal-MCP SOURCEaadeshrao123/unreal-mcp

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/aadeshrao123-unreal-mcp/build-material-function-graph.md

WHAT IT DOES

What build_material_function_graph does on Unreal-MCP

AI agents invoke build_material_function_graph to trigger actions in Unreal-MCP. 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 build_material_function_graph is rated High

This tool performs asset compilation and generation in the Unreal Engine editor, which constitutes code execution in the form of shader graph building. It modifies the engine state irreversibly (generates compiled shader assets) but is reversible through undo.

From the tool's definition Tool name 'build_material_function_graph' indicates construction/compilation of shader graph assets in Unreal Engine 5.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

build_material_function_graph Rate-limited

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

FAQ

Questions about build_material_function_graph

What does the build_material_function_graph tool do? +

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

How do I enforce a policy on build_material_function_graph? +

Register the Unreal MCP server in PolicyLayer and add a rule for build_material_function_graph: 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 build_material_function_graph? +

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

Can I rate-limit build_material_function_graph? +

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

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

build_material_function_graph 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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