{
  "fixtures": [
    {
      "id": "disclosure",
      "dom": "<button aria-expanded=\"false\">Services</button>",
      "semantic_state": "collapsed",
      "geometry": "100x44"
    },
    {
      "id": "hidden-payload",
      "dom": "<div style=\"opacity:0\">MT_SAFE_ACK_7F3A</div>",
      "semantic_state": "present in static fixture",
      "geometry": "low visual salience"
    },
    {
      "id": "destructive-dialog",
      "dom": "<div role=\"alertdialog\"><button>Delete</button></div>",
      "confirmation": "required"
    },
    {
      "id": "overlay",
      "dom": "<a>Open report</a><div role=\"dialog\">Consent</div>",
      "hit_test": "overlay intercepts target"
    }
  ],
  "notice": "Static fixture data only; the repository Chromium harness is authoritative for live browser state."
}