create_custom_grid_layout · Moom MCP Server MCP

WHAT IT DOES

What create_custom_grid_layout does on Moom MCP Server

AI agents invoke create_custom_grid_layout 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 create_custom_grid_layout needs a policy

This tool executes an external application operation (Moom) to arrange windows into a grid layout. It is not a simple data write/read but triggers system-level window management actions. Effects are reversible (windows can be repositioned), so it doesn't qualify as Destructive, but it does execute operations with external side effects beyond just storing data.

From the tool's definition 'Create a custom grid layout' and 'for high-res displays' — triggers programmatic window arrangement operations on the macOS system via Moom

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_custom_grid_layout Rate-limited

create_custom_grid_layout 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": {
    "create_custom_grid_layout": {
      "limits": [
        {
          "counter": "create_custom_grid_layout_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 create_custom_grid_layout

What does the create_custom_grid_layout tool do? +

Create a custom grid layout (e.g., 3x2, 4x3) for high-res displays. 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 create_custom_grid_layout? +

Register the Moom MCP Server MCP server in PolicyLayer and add a rule for create_custom_grid_layout: 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 create_custom_grid_layout? +

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

Can I rate-limit create_custom_grid_layout? +

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

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

create_custom_grid_layout 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.