project_create · N8n Fabric MCP: Risk & Policy

WHAT IT DOES

What project_create does on N8n Fabric

AI agents use project_create to create or update resources in N8n Fabric — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your N8n Fabric environment.

WHY IT NEEDS A POLICY

Why project_create needs a policy

This tool creates a new project resource in n8n, which is a data modification operation. It is reversible (projects can be deleted), so it falls under Write rather than Destructive. The severity is medium because creating projects in an automation platform could lead to resource sprawl or unintended automation workflows if misused by an AI agent, but the blast radius is contained to the project scope.

From the tool's definition Tool name is 'project_create' and description states 'Create a new project'. The verb 'create' indicates a reversible write operation that adds a new resource to the n8n automation platform.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

project_create Rate-limited

project_create 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": {
    "project_create": {
      "limits": [
        {
          "counter": "project_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches N8n Fabric, so you can run agents against it safely.

FAQ

Questions about project_create

What does the project_create tool do? +

Create a new project. It is categorised as a Write tool in the N8n Fabric MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on project_create? +

Register the N8n Fabric MCP server in PolicyLayer and add a rule for project_create: 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 N8n Fabric. Nothing to install.

What risk level is project_create? +

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

Can I rate-limit project_create? +

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

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

project_create is provided by the N8n Fabric MCP server (ry-ops/n8n-fabric). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.