Widget tool namespace for UMG Blueprint creation, widget-tree inspection, widget-tree edits, CanvasPanel root normalization, and viewport spawning actions. Use inspect_tree to verify designer contents, add_child_widget for nested layout work, and ensure_canvas_root when absolute CanvasPanel posit...
AI agents use manage_widget to create or update resources in Unreal Mcp Ue4 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unreal Mcp Ue4 environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
action | string | Yes | Action to execute inside tool namespace manage_widget |
params | object | — | Parameters for the selected manage_widget action. Supported actions: manage_widget.add_button, manage_widget.add_child_widget, manage_widget.add_text_block, man |
Parameters from the server's own tool schema.
An AI agent can call manage_widget faster than any human can review — one bad instruction and it creates or modifies resources in Unreal Mcp Ue4 by the hundred, each call as confident as the last.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
Widget tool namespace for UMG Blueprint creation, widget-tree inspection, widget-tree edits, CanvasPanel root normalization, and viewport spawning actions. Use inspect_tree to verify designer contents, add_child_widget for nested layout work, and ensure_canvas_root when absolute CanvasPanel positioning is required. It is categorised as a Write tool in the Unreal Mcp Ue4 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
manage_widget accepts 2 parameters: action, params. Required: action. The full parameter table on this page comes from the server's own tool schema.
Register the Unreal Mcp Ue4 MCP server in PolicyLayer and add a rule for manage_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 Ue4. Nothing to install.
manage_widget is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the manage_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.
Set action: deny in the PolicyLayer policy for manage_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.
manage_widget is provided by the Unreal Mcp Ue4 MCP server (unreal-mcp-ue4). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.