maximize_window

THE RISK

High Risk

Why maximize_window needs a policy

This tool triggers an external UI operation (window management) that changes the state of the windowing system. It has no direct data read/write implications, but it executes a system-level action affecting the desktop environment. Severity is low as the blast radius of maximizing a window is minimal.

From the tool's definition Maximize the active or specified window

Documented attack patterns abuse exactly the kind of access maximize_window gives an agent:

POLICY

How to control maximize_window

PolicyLayer is an MCP gateway — it sits between your AI agents and OODA Computer Control, and nothing reaches the server without passing your rules. This is the rule we recommend for maximize_window:

policy.json

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

maximize_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.

Create a free account and register OODA Computer Control — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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All 99 OODA Computer Control tools →

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Go deeper

High-risk tools in OODA Computer Control → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about maximize_window

What does the maximize_window tool do? +

Maximize the active or specified window. It is categorised as a Execute tool in the OODA Computer Control MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on maximize_window? +

Register the OODA Computer Control MCP server in PolicyLayer and add a rule for maximize_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 OODA Computer Control. Nothing to install.

What risk level is maximize_window? +

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

Can I rate-limit maximize_window? +

Yes. Add a rate_limit block to the maximize_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 maximize_window completely? +

Set action: deny in the PolicyLayer policy for maximize_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 maximize_window? +

maximize_window is provided by the OODA Computer Control MCP server (mnehmos/mnehmos.ooda.mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every OODA Computer Control tool call.

Start from OODA Computer Control, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →