get_blueprint_variable_details

Get detailed info about Blueprint variables (empty name = all variables).

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-blueprint-variable-details.md

WHAT IT DOES

What get_blueprint_variable_details does on Unreal-MCP

AI agents call get_blueprint_variable_details 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_blueprint_variable_details is rated Low

This is a read-only operation that queries and returns information about Blueprint variables. It does not create, modify, delete, or execute any operations. The empty name parameter simply controls the scope of what is retrieved (all vs. specific variables), but remains a passive information retrieval action with no side effects on the Unreal Engine project state.

From the tool's definition Tool name contains 'get' and description states 'Get detailed info about Blueprint variables' — retrieves information with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

get_blueprint_variable_details Allowed

get_blueprint_variable_details 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_blueprint_variable_details": {}
  }
}

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_blueprint_variable_details call is checked against it from then on.

FAQ

Questions about get_blueprint_variable_details

What does the get_blueprint_variable_details tool do? +

Get detailed info about Blueprint variables (empty name = all variables). 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_blueprint_variable_details? +

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

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

Can I rate-limit get_blueprint_variable_details? +

Yes. Add a rate_limit block to the get_blueprint_variable_details 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_blueprint_variable_details completely? +

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

get_blueprint_variable_details 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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