{
  "name": "browser_lock",
  "description": "Lock the browser to prevent user interaction while you work. Shows a subtle overlay that blocks clicks/scrolls. The user can still click \"Take Control\" to unlock if needed.",
  "arguments": {
    "type": "object",
    "properties": {
      "viewId": {
        "type": "string",
        "description": "Target browser tab ID. If omitted, uses the last interacted tab."
      }
    },
    "required": []
  }
}