get_available_materials

A read tool on the Unreal- MCP server.

SERVERUnreal-MCP SOURCEaadeshrao123/unreal-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aadeshrao123-unreal-mcp/get-available-materials.md

WHAT IT DOES

What get_available_materials does on Unreal-MCP

AI agents call get_available_materials to retrieve information from Unreal-MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_available_materials is rated Low

This tool appears to list or fetch available materials from the Unreal Engine project—a read-only operation with no side effects. It retrieves data for inspection or reference. Confidence is slightly reduced (0.85 rather than 0.95+) because the description is empty, preventing direct confirmation, but the naming convention and context make the classification highly reliable.

From the tool's definition Tool name 'get_available_materials' indicates data retrieval. The 'get_' prefix strongly suggests a query operation that retrieves existing materials without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

get_available_materials Allowed

get_available_materials is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_available_materials": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Unreal-MCP, apply this rule, and every get_available_materials call is checked against it from then on.

FAQ

Questions about get_available_materials

What does the get_available_materials tool do? +

get_available_materials is a read tool on the Unreal MCP server. It is categorised as a Read tool in the Unreal-MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_available_materials? +

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

get_available_materials is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_available_materials? +

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

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

get_available_materials 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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