trigger_moom_action · Moom MCP Server MCP: Risk & Policy

WHAT IT DOES

What trigger_moom_action does on Moom MCP Server

AI agents invoke trigger_moom_action to trigger actions in Moom MCP Server. 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.

WHY IT NEEDS A POLICY

Why trigger_moom_action needs a policy

This tool programmatically triggers keyboard shortcuts to control window layouts and application behavior on macOS. While not arbitrary code execution, it executes external operations (Moom window management actions) whose effects are determined by the arguments passed.

From the tool's definition Tool description: 'Trigger common Moom actions via keyboard shortcuts'. The tool executes predefined actions through keyboard automation, which are external operations whose effects depend on which shortcut is triggered.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

trigger_moom_action Rate-limited

trigger_moom_action 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "trigger_moom_action": {
      "limits": [
        {
          "counter": "trigger_moom_action_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about trigger_moom_action

What does the trigger_moom_action tool do? +

Trigger common Moom actions via keyboard shortcuts. It is categorised as a Execute tool in the Moom MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on trigger_moom_action? +

Register the Moom MCP Server MCP server in PolicyLayer and add a rule for trigger_moom_action: 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 Moom MCP Server. Nothing to install.

What risk level is trigger_moom_action? +

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

Can I rate-limit trigger_moom_action? +

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

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

trigger_moom_action is provided by the Moom MCP Server MCP server (itrimble/moom-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.