create_node_network

THE RISK

Medium Risk

Why create_node_network needs a policy

This tool generates new game world data structures that are persisted in the SQLite backend. It is reversible (nodes can be deleted or modified in future turns), so it does not meet the Destructive threshold. It does not execute arbitrary code or trigger external systems (Execute), nor does it move financial resources (Financial).

From the tool's definition The tool 'create_node_network' creates spatial structures (towns, roads, dungeons) within the game world. The verb 'create' indicates data generation and modification.

Documented attack patterns abuse exactly the kind of access create_node_network gives an agent:

POLICY

How to control create_node_network

PolicyLayer is an MCP gateway — it sits between your AI agents and Rpg, and nothing reaches the server without passing your rules. This is the rule we recommend for create_node_network:

policy.json

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

create_node_network 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.

Create a free account and register Rpg — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Rpg tools

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All 47 Rpg tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about create_node_network

What does the create_node_network tool do? +

Create a spatial node network such as a town, road, or dungeon. It is categorised as a Write tool in the Rpg MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_node_network? +

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

What risk level is create_node_network? +

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

Can I rate-limit create_node_network? +

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

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

create_node_network is provided by the Rpg MCP server (mnehmos/mnehmos.rpg.mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Rpg tool call.

Start from Rpg, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →