batch_exec

Execute multiple bridge commands in a single editor tick — faster than sending one-by-one.

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/batch-exec.md

WHAT IT DOES

What batch_exec does on Uefn

AI agents invoke batch_exec 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 batch_exec is rated High

batch_exec orchestrates execution of editor commands. While individual commands may vary in severity (some Write-like, some Execute-like), the batch execution of Unreal Editor operations that modify actor state, audio placement, and blueprint compilation constitutes Execute risk.

From the tool's definition Tool enables execution of 'multiple bridge commands in a single editor tick' — these are operations that trigger external editor state changes and actions.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

batch_exec Rate-limited

batch_exec 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": {
    "batch_exec": {
      "limits": [
        {
          "counter": "batch_exec_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 batch_exec call is checked against it from then on.

FAQ

Questions about batch_exec

What does the batch_exec tool do? +

Execute multiple bridge commands in a single editor tick — faster than sending one-by-one. 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 batch_exec? +

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

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

Can I rate-limit batch_exec? +

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

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

batch_exec 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.

KEEP EXPLORING

More on Uefn, and thousands of servers like it.

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All 143 Uefn tools → High-risk tools on this server →

Across the catalogue

bash_exec on 0sec →qt_batch on Qt → All high-risk MCP tools → The MCP Attack Database →

Guides

Govern code and CI agents →Agent sandbox →Least privilege for MCP →