{
  "baseCommit": "34ba9b3970c33a57508383778d405f2e1b0d8967",
  "patch": "collector.patch",
  "patchSha256": "985ff0a32a488aaf02083ca4f2c82a53c8ca67ff6f8e9295036d663334c326de",
  "build": "production",
  "origin": "http://localhost:4325",
  "machine": "Mac Studio 2022, Apple M1 Max, 64 GB",
  "macOS": "26.5.2",
  "macOSBuild": "25F84",
  "node": "24.21.0",
  "pnpm": "12.4.2",
  "method": "Actual installed browsers operated through native computer use; sequential foreground collections; clean regular profiles; extensions disabled",
  "validation": {
    "status": "passed",
    "totalSamples": 204,
    "measuredSamples": 170,
    "warmupSamples": 34,
    "exactJobConfigurations": true,
    "exactRotatedSchedule": true,
    "allSamplesSuccessful": true,
    "allRunsUninterrupted": true,
    "matchingSourceAndWorkloads": true,
    "nonOverlappingRunIntervals": true,
    "lockfileUnchanged": true,
    "appliedPatchReverseCheckPassed": true
  },
  "collections": [
    {
      "browser": "safari",
      "browserVersion": "26.5.2 (21624.2.5.11.8)",
      "file": "safari.json",
      "originalDownload": "opfs-bench-safari-4d358f4a-9c1d-4777-a187-508b06f3c1a7.json",
      "sha256": "4909d875a72ebdc953adb5cd8d9a66d9b815b57efd64897f8ce7628c95717ceb",
      "startedAt": "2026-09-23T19:48:43.223Z",
      "finishedAt": "2026-09-23T19:51:53.723Z",
      "totalSamples": 60,
      "measuredSamples": 50
    },
    {
      "browser": "chrome",
      "browserVersion": "153.0.8010.53",
      "file": "chrome.json",
      "originalDownload": "opfs-bench-chrome-c845996d-0128-4b1f-a897-8347fa78a2db.json",
      "sha256": "44ce4803a23c411de81df68b77c43dc933460f768563c9244b236d85ab9a5bd2",
      "startedAt": "2026-09-23T19:53:56.708Z",
      "finishedAt": "2026-09-23T19:57:46.833Z",
      "totalSamples": 72,
      "measuredSamples": 60
    },
    {
      "browser": "firefox",
      "browserVersion": "156.0.1",
      "file": "firefox.json",
      "originalDownload": "opfs-bench-firefox-c92430b9-934a-4d9e-9331-9b0da42fd47a.json",
      "sha256": "98f09235bc110b5d96fff7f1069bb5c47eeec479115b295df1fe7b25602c8593",
      "startedAt": "2026-09-23T20:00:34.229Z",
      "finishedAt": "2026-09-23T20:06:28.091Z",
      "totalSamples": 72,
      "measuredSamples": 60
    }
  ],
  "limitations": [
    "The M5 handoff records macOS 26.6.2; this machine runs 26.5.2. Compare complete systems, not chip performance alone.",
    "Firefox automatically updated from 136.0 to 156.0.1 on restart before its collection; the exact timing of its earlier background download was not observed.",
    "Existing Chrome AI-related launch flags were retained and recorded in README.",
    "No Low Power Mode field was exposed by pmset; AC power and approximately 58 GiB free disk space were recorded.",
    "The bundle includes M5 provenance but not its original JSON reports, so matching full browser versions across machines still needs review.",
    "Results are ready for review, not automatically approved for publication."
  ]
}