High Risk →

nx

Runs Nx workspace commands and returns structured per-project task results with cache status.

How to control nx ↓

What nx does on Make

AI agents invoke nx to trigger actions in Make. 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.

High Risk

Why nx needs a policy

The tool actively runs commands in an Nx monorepo workspace, which can trigger builds, tests, deployments, code generation, and other side-effecting operations. The blast radius is high because it operates across multiple projects simultaneously and can execute arbitrary targets defined in the workspace configuration.

From the tool's definition 'Runs Nx workspace commands' — executes arbitrary workspace build/test/deploy tasks across multiple projects

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

How to control nx

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "nx": {
      "limits": [
        {
          "counter": "nx_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

nx 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.

  1. Create a free account and register Make — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

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Related tools and policies

Go deeper

Questions about nx

What does the nx tool do? +

Runs Nx workspace commands and returns structured per-project task results with cache status. It is categorised as a Execute tool in the Make MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on nx? +

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

What risk level is nx? +

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

Can I rate-limit nx? +

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

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

nx is provided by the Make MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Make tool call.

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

Free to start. No card required.

202 Make tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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