actor_hide

Hide actors in the editor viewport (not in-game).

SERVERUefn SOURCEquangdang46/uefn-verse-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/quangdang46-uefn-verse-mcp/actor-hide.md

WHAT IT DOES

What actor_hide does on Uefn

AI agents use actor_hide to create or update resources in Uefn, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Uefn environment.

RISK

Why actor_hide is rated Medium

This tool modifies the visibility state of actors within the UEFN editor viewport. It is a reversible change (actors can be shown again, as evidenced by the sibling tool 'actor_show'), affecting only the editor view and not the actual game or persistent data. This fits the Write category — a reversible modification with low blast radius.

From the tool's definition Hide actors in the editor viewport (not in-game)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs actor_hide safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Uefn, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For actor_hide, this is the rule to start with:

actor_hide Rate-limited

actor_hide stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "actor_hide": {
      "limits": [
        {
          "counter": "actor_hide_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about actor_hide

What does the actor_hide tool do? +

Hide actors in the editor viewport (not in-game). It is categorised as a Write tool in the Uefn MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on actor_hide? +

Register the Uefn MCP server in PolicyLayer and add a rule for actor_hide: 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 Uefn. Nothing to install.

What risk level is actor_hide? +

actor_hide is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit actor_hide? +

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

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

actor_hide is provided by the Uefn MCP server (quangdang46/uefn-verse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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