High Risk →

monitor_resolution_change

Change display resolution and refresh rate

How to control monitor_resolution_change ↓

AI agents invoke monitor_resolution_change to trigger actions in Mcp Windows. 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.

High Risk

This tool modifies system display settings (resolution and refresh rate), which is an external system operation with immediate effect. It's not purely a data write to a database but rather executes a system-level configuration change. While potentially reversible, misuse could cause display issues (e.g., unsupported resolution leaving screen unusable).

From the tool's definition Change display resolution and refresh rate

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

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "monitor_resolution_change": {
      "limits": [
        {
          "counter": "monitor_resolution_change_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

monitor_resolution_change 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.

  1. Create a free account and register Mcp Windows — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

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Go deeper

What does the monitor_resolution_change tool do? +

Change display resolution and refresh rate. It is categorised as a Execute tool in the Mcp Windows MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on monitor_resolution_change? +

Register the Mcp Windows MCP server in PolicyLayer and add a rule for monitor_resolution_change: 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 Windows. Nothing to install.

What risk level is monitor_resolution_change? +

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

Can I rate-limit monitor_resolution_change? +

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

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

monitor_resolution_change is provided by the Mcp Windows MCP server (mukul975/mcp-windows-automation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Windows tool call.

Deterministic rules across all 441 Mcp Windows tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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441 Mcp Windows tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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