delete_actor
Delete an actor from the current level by name or label.
This record as markdown: /tools/jjpxdev-unreal-mcp/delete-actor.md
What delete_actor does on Unreal
AI agents call delete_actor to permanently remove resources in Unreal, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
name | string | Yes | Actor name or label to delete |
Parameters from the server's own tool schema.
Why delete_actor is rated Critical
This tool performs an irreversible deletion operation on game level actors. Once deleted, the actor and its associated data cannot be recovered through the tool itself. In the context of an AI agent, misuse could result in unintended loss of critical scene composition, breaking game logic and level design.
From the tool's definition Tool name 'delete_actor' combined with description 'Delete an actor from the current level by name or label' explicitly indicates irreversible removal of scene objects in Unreal Engine.
Attacks that exploit this kind of access
The rule that runs delete_actor safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Unreal, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For delete_actor, this is the rule to start with:
delete_actor is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Unreal, apply this rule, and every delete_actor call is checked against it from then on.
Questions about delete_actor
Delete an actor from the current level by name or label. It is categorised as a Destructive tool in the Unreal MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
delete_actor accepts 1 parameter: name. Required: name. The full parameter table on this page comes from the server's own tool schema.
Register the Unreal MCP server in PolicyLayer and add a rule for delete_actor: 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.
delete_actor is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_actor 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 delete_actor. 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.
delete_actor is provided by the Unreal MCP server (@jjpxdev/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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