zone_spawn

A execute tool on the Uefn MCP server.

SERVERUefn SOURCEquangdang46/uefn-verse-mcp

High RISK CLASS

Category Execute

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/zone-spawn.md

WHAT IT DOES

What zone_spawn does on Uefn

AI agents invoke zone_spawn to trigger actions in Uefn. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why zone_spawn is rated High

Based on the name 'zone_spawn', this tool likely spawns or instantiates a zone object within the live UEFN editor environment. Spawning an entity is an active operation that triggers creation in a live editor, placing it in the Execute/Write category. Given the live editor context and sibling tools like 'batch_exec' and 'audio_place', this is likely a Write or Execute action.

From the tool's definition Tool name 'zone_spawn' suggests spawning/creating a zone entity in the UEFN editor. Description is empty and uninformative.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

zone_spawn Rate-limited

zone_spawn stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "zone_spawn": {
      "limits": [
        {
          "counter": "zone_spawn_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about zone_spawn

What does the zone_spawn tool do? +

zone_spawn is a execute tool on the Uefn MCP server. It is categorised as a Execute tool in the Uefn MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on zone_spawn? +

Register the Uefn MCP server in PolicyLayer and add a rule for zone_spawn: 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 zone_spawn? +

zone_spawn is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit zone_spawn? +

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

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

zone_spawn 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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