add_loop · RPG Maker MZ MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_loop does on RPG Maker MZ MCP Server

AI agents use add_loop to create or update resources in RPG Maker MZ MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your RPG Maker MZ MCP Server environment.

WHY IT NEEDS A POLICY

Why add_loop needs a policy

This tool creates or modifies event logic by adding a loop structure, which is a reversible operation. It does not execute code, delete data, or cause financial impacts. The ability to add loops to events is a Write operation because it changes the event's behavior in a way that can be undone (loops can be removed or modified).

From the tool's definition Tool name 'add_loop' and description 'Add a loop structure to an event' indicate creation/modification of event logic within RPG Maker MZ projects.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_loop Rate-limited

add_loop 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": {
    "add_loop": {
      "limits": [
        {
          "counter": "add_loop_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches RPG Maker MZ MCP Server, so you can run agents against it safely.

FAQ

Questions about add_loop

What does the add_loop tool do? +

Add a loop structure to an event. It is categorised as a Write tool in the RPG Maker MZ MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_loop? +

Register the RPG Maker MZ MCP Server MCP server in PolicyLayer and add a rule for add_loop: 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 RPG Maker MZ MCP Server. Nothing to install.

What risk level is add_loop? +

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

Can I rate-limit add_loop? +

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

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

add_loop is provided by the RPG Maker MZ MCP Server MCP server (rein1225/rpgmakermz_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.