window_close

Close a window by explicit address/match, or the currently focused window if omitted. REFUSES to close this agent

SERVEROmarchy-MCP SOURCEhlsitechio/Omarchy-MCP

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/omarchy-mcp/window-close.md

WHAT IT DOES

What window_close does on Omarchy-MCP

AI agents use window_close to create or update resources in Omarchy-MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Omarchy-MCP environment.

RISK

Why window_close is rated Medium

An AI agent can call window_close faster than any human can review: one bad instruction and it creates or modifies resources in Omarchy-MCP by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs window_close safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Omarchy-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For window_close, this is the rule to start with:

window_close Rate-limited

window_close 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": {
    "window_close": {
      "limits": [
        {
          "counter": "window_close_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Omarchy-MCP, apply this rule, and every window_close call is checked against it from then on.

FAQ

Questions about window_close

What does the window_close tool do? +

Close a window by explicit address/match, or the currently focused window if omitted. REFUSES to close this agent. It is categorised as a Write tool in the Omarchy-MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on window_close? +

Register the Omarchy MCP server in PolicyLayer and add a rule for window_close: 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 Omarchy-MCP. Nothing to install.

What risk level is window_close? +

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

Can I rate-limit window_close? +

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

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

window_close is provided by the Omarchy MCP server (hlsitechio/Omarchy-MCP). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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