remove_widget

Remove a widget and its children. Cannot remove the root widget.

SERVERUnreal-MCP SOURCEaadeshrao123/unreal-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aadeshrao123-unreal-mcp/remove-widget.md

WHAT IT DOES

What remove_widget does on Unreal-MCP

AI agents call remove_widget to permanently remove resources in Unreal-MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why remove_widget is rated Critical

This tool permanently removes UI components and their dependent children from the Unreal Engine editor state. While operating within the editor context (not production code), removal of widgets cannot be trivially undone by an agent and affects the project's UI hierarchy structure. This qualifies as Destructive rather than Write because the action is irreversible and removes rather than modifies data.

From the tool's definition The tool explicitly performs a 'Remove' operation that deletes a widget and its children from the UI hierarchy.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

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

remove_widget Hidden

remove_widget is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "remove_widget"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about remove_widget

What does the remove_widget tool do? +

Remove a widget and its children. Cannot remove the root widget. It is categorised as a Destructive tool in the Unreal-MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on remove_widget? +

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

remove_widget is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit remove_widget? +

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

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

remove_widget 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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