AI agents call get_unreal_engine_path to retrieve information from Unreal without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and returns the path to the Unreal Engine installation—a read-only operation with no side effects, no data modification, no code execution, and no destructive impact. It is informational only.
From the tool's definition Tool name 'get_unreal_engine_path' and description 'Get the current Unreal Engine path' indicate a simple query operation that retrieves configuration/path information without modifying any state.
Documented attack patterns abuse exactly the kind of access get_unreal_engine_path gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Unreal, and nothing reaches the server without passing your rules. This is the rule we recommend for get_unreal_engine_path:
{
"version": "1",
"default": "deny",
"tools": {
"get_unreal_engine_path": {}
}
}get_unreal_engine_path is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the current Unreal Engine path. It is categorised as a Read tool in the Unreal MCP Server, which means it retrieves data without modifying state.
Register the Unreal MCP server in PolicyLayer and add a rule for get_unreal_engine_path: 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. Nothing to install.
get_unreal_engine_path is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_unreal_engine_path 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.
Set action: deny in the PolicyLayer policy for get_unreal_engine_path. 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.
get_unreal_engine_path is provided by the Unreal MCP server (runreal/unreal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 20 Unreal tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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20 Unreal tools catalogued and risk-classified — across an index of 42,500+ MCP servers.