{
  "name": "browser_execute_js",
  "description": "Run JavaScript in the page's MAIN world and return the result. Same realm as the site's own scripts, so you can reach the application's window globals — frameworks, state stores, config objects, jQuery, data layers — which an isolated content script cannot see.",
  "requires_confirmation": true,
  "inputSchema": {
    "type": "object",
    "properties": {
      "code": {
        "type": "string",
        "description": "JavaScript source to evaluate in the page. The last expression's value is returned, e.g."
      }
    },
    "required": [
      "code"
    ]
  }
}