{
  "name": "capture.offer — attachment on a monitored type is taken",
  "description": "Golden fixture. tests/conformance replays this against the real daemon AND the TS client. If either side drifts, this goes red before the lanes ever integrate.",
  "request": {
    "jsonrpc": "2.0",
    "id": 42,
    "method": "capture.offer",
    "params": {
      "url": "https://releases.ubuntu.com/26.04/ubuntu-26.04-desktop-amd64.iso",
      "method": "GET",
      "tabUrl": "https://releases.ubuntu.com/26.04/",
      "headers": {
        "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:154.0) Gecko/20100101 Firefox/154.0",
        "Referer": "https://releases.ubuntu.com/26.04/",
        "Accept": "*/*"
      },
      "cookies": [],
      "contentType": "application/octet-stream",
      "contentLength": 6228541440,
      "contentDisposition": "attachment; filename=\"ubuntu-26.04-desktop-amd64.iso\"",
      "filename": "ubuntu-26.04-desktop-amd64.iso",
      "origin": "moz-extension://11111111-2222-3333-4444-555555555555"
    }
  },
  "response": {
    "jsonrpc": "2.0",
    "id": 42,
    "result": {
      "action": "take",
      "taskId": "$uuid",
      "reason": null
    }
  },
  "assertions": [
    "response arrives within 750 ms",
    "a task exists afterwards with state in [queued, connecting, downloading]",
    "the task's saveDir resolves to the 'Programs' category folder for .iso",
    "the Referer and User-Agent from params.headers are replayed on the daemon's own request"
  ]
}