{
  "updated": "2026-10-27",
  "scope": "Cloud Chromium against local site assets and the real native app source; not production or vendor parity",
  "limits": {
    "export_rows": 100000,
    "chart_marks": 10000,
    "preview_page_rows": 100,
    "excel": "first worksheet",
    "xml": "flat repeated records",
    "import_rows": 3500000,
    "file_bytes_constrained": 33554432,
    "file_bytes_other": 167772160
  },
  "behavior": {
    "constrained_device": "Reported deviceMemory below 4 GiB, including the fallback",
    "export_over_limit": "Reject, do not sample",
    "processing": "Local browser worker"
  },
  "verification": {
    "checks": [
      {
        "label": "file conversions",
        "code": 0
      },
      {
        "label": "native makers",
        "code": 0
      },
      {
        "label": "workbook byte handoff",
        "code": 0
      },
      {
        "label": "maker app continuity",
        "code": 0
      },
      {
        "label": "native BI file rendering",
        "code": 0
      },
      {
        "label": "SEO and route oracle",
        "code": 0
      }
    ],
    "source_tests": [
      "tools/check_file_tools.mjs",
      "tools/check_makers.mjs"
    ],
    "run_ids": [
      "20261027T151020Z-247603f362",
      "20261027T153020Z-dcbcfb6856"
    ]
  }
}