minimize_window · Mac MCP: Risk & Policy

WHAT IT DOES

What minimize_window does on Mac

AI agents invoke minimize_window to trigger actions in Mac. 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 minimize_window needs a policy

This tool triggers an external macOS UI operation (minimizing a window) that changes system state. While it is reversible (a window can be unminimized), it is not a simple data read or write — it executes a UI action affecting application window state. Severity is low as the blast radius of misuse is minimal.

From the tool's definition Minimizes a window to the Dock

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

minimize_window Rate-limited

minimize_window 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": {
    "minimize_window": {
      "limits": [
        {
          "counter": "minimize_window_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 Mac, so you can run agents against it safely.

FAQ

Questions about minimize_window

What does the minimize_window tool do? +

Minimizes a window to the Dock. It is categorised as a Execute tool in the Mac MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on minimize_window? +

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

What risk level is minimize_window? +

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

Can I rate-limit minimize_window? +

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

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

minimize_window is provided by the Mac MCP server (laststance/mac-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.