set_capture_resolution · Mcp Serial Hid Kvm MCP

WHAT IT DOES

What set_capture_resolution does on Mcp Serial Hid Kvm

AI agents use set_capture_resolution to create or update resources in Mcp Serial Hid Kvm — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Serial Hid Kvm environment.

WHY IT NEEDS A POLICY

Why set_capture_resolution needs a policy

This tool modifies capture device settings (the resolution configuration). While the change is reversible and does not delete data or execute arbitrary code, it alters the operational state of hardware capture.

From the tool's definition set_capture_resolution changes (Write) the HDMI capture resolution setting via "Change the HDMI capture resolution" with specified common values. This modifies device configuration state reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_capture_resolution Rate-limited

set_capture_resolution 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": {
    "set_capture_resolution": {
      "limits": [
        {
          "counter": "set_capture_resolution_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Serial Hid Kvm, so you can run agents against it safely.

FAQ

Questions about set_capture_resolution

What does the set_capture_resolution tool do? +

Change the HDMI capture resolution. Common values: 1920x1080, 1280x720, 640x480. The actual resolution depends on what the capture device supports. It is categorised as a Write tool in the Mcp Serial Hid Kvm MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_capture_resolution? +

Register the Mcp Serial Hid Kvm MCP server in PolicyLayer and add a rule for set_capture_resolution: 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 Serial Hid Kvm. Nothing to install.

What risk level is set_capture_resolution? +

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

Can I rate-limit set_capture_resolution? +

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

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

set_capture_resolution is provided by the Mcp Serial Hid Kvm MCP server (sunasaji/mcp-serial-hid-kvm). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.