focus_window_win32

Restore and focus a top-level window using Win32 APIs.

SERVERMcp Control Plane SOURCEalbertik322-sudo/mcp-control-plane

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-control-plane/focus-window-win32.md

WHAT IT DOES

What focus_window_win32 does on Mcp Control Plane

AI agents invoke focus_window_win32 to trigger actions in Mcp Control Plane. 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.

RISK

Why focus_window_win32 is rated High

This tool interacts with the Windows GUI by restoring and focusing windows via Win32 APIs, which constitutes executing an external system operation. It can manipulate any top-level window on the system, potentially disrupting user workflows or enabling UI-based attacks (e.g., bringing a malicious window to focus). It is not a simple read and has side effects on the system state.

From the tool's definition Restore and focus a top-level window using Win32 APIs

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs focus_window_win32 safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Control Plane, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For focus_window_win32, this is the rule to start with:

focus_window_win32 Rate-limited

focus_window_win32 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": {
    "focus_window_win32": {
      "limits": [
        {
          "counter": "focus_window_win32_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Control Plane, apply this rule, and every focus_window_win32 call is checked against it from then on.

FAQ

Questions about focus_window_win32

What does the focus_window_win32 tool do? +

Restore and focus a top-level window using Win32 APIs. It is categorised as a Execute tool in the Mcp Control Plane MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on focus_window_win32? +

Register the Mcp Control Plane MCP server in PolicyLayer and add a rule for focus_window_win32: 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 Mcp Control Plane. Nothing to install.

What risk level is focus_window_win32? +

focus_window_win32 is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit focus_window_win32? +

Yes. Add a rate_limit block to the focus_window_win32 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 focus_window_win32 completely? +

Set action: deny in the PolicyLayer policy for focus_window_win32. 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 focus_window_win32? +

focus_window_win32 is provided by the Mcp Control Plane MCP server (albertik322-sudo/mcp-control-plane). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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