generate_new_world · Alethea World History Engine MCP

WHAT IT DOES

What generate_new_world does on Alethea World History Engine

AI agents use generate_new_world to create or update resources in Alethea World History Engine — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Alethea World History Engine environment.

WHY IT NEEDS A POLICY

Why generate_new_world needs a policy

This tool creates new data (a world) within the system, which is a reversible operation. It does not execute arbitrary code, delete data, or move financial resources. It falls under the Write category as it generates and initializes new entities in the narrative graph.

From the tool's definition Tool name 'generate_new_world' and description 'Creates a new world' explicitly indicate creation of data structures within the narrative graph engine.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_new_world Rate-limited

generate_new_world 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": {
    "generate_new_world": {
      "limits": [
        {
          "counter": "generate_new_world_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 Alethea World History Engine, so you can run agents against it safely.

FAQ

Questions about generate_new_world

What does the generate_new_world tool do? +

Creates a new world. It is categorised as a Write tool in the Alethea World History Engine MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_new_world? +

Register the Alethea World History Engine MCP server in PolicyLayer and add a rule for generate_new_world: 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 Alethea World History Engine. Nothing to install.

What risk level is generate_new_world? +

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

Can I rate-limit generate_new_world? +

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

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

generate_new_world is provided by the Alethea World History Engine MCP server (watashicuvu/world-history-engine). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.