{
  "budget_rule": "ICU does not prefill current prices. If budget is enabled, the user must enter a current all-in price for every remaining candidate; otherwise the budget decision fails visibly instead of guessing.",
  "checkpoint": "O016",
  "family_id": "large-e-paper-writing-tablets",
  "inputs": [
    {
      "id": "primary",
      "meaning": "Primary workflow",
      "required": true
    },
    {
      "id": "ecosystem",
      "meaning": "Hard reading-ecosystem requirement",
      "required": false
    },
    {
      "id": "must_color",
      "meaning": "Must have verified color e-paper",
      "required": false
    },
    {
      "id": "must_formats",
      "meaning": "Must have verified broad native file formats",
      "required": false
    },
    {
      "id": "must_light",
      "meaning": "Must have a verified front/reading light",
      "required": false
    },
    {
      "id": "must_waterproof",
      "meaning": "Must have verified waterproofing",
      "required": false
    },
    {
      "id": "must_repair",
      "meaning": "Must have verified repairability/battery replacement",
      "required": false
    },
    {
      "id": "budget_enabled",
      "meaning": "Hard budget applies; requires comparable current all-in prices entered by visitor",
      "required": false
    }
  ],
  "products": [
    {
      "brand": "reMarkable",
      "broad_native_formats_state": "not_verified",
      "color_state": "verified_yes",
      "display": "11.8 in Canvas Color",
      "display_state": "verified_fact",
      "ecosystem": "file-centric",
      "file_workflow": "PDF + EPUB import; PDF + PNG + SVG export",
      "fit": {
        "documents": 3,
        "ebooks": 1,
        "handwriting": 3,
        "mixed": 2
      },
      "fit_reasons": {
        "documents": "PDF review, annotation and export workflows are documented.",
        "ebooks": "EPUB import is supported, but this profile is not a bookstore-centered ebook reader.",
        "handwriting": "Focused notebook/document product scope and strong paper-tablet positioning.",
        "mixed": "Strong writing/document fit, but reading-library breadth is not its main proposition."
      },
      "front_light_state": "verified_yes",
      "id": "product:o015:remarkable-paper-pro",
      "path": "/products/remarkable-paper-pro/",
      "storage": "64 GB",
      "title": "reMarkable Paper Pro",
      "weight_g": 525,
      "weight_state": "verified_fact"
    },
    {
      "brand": "Rakuten Kobo",
      "broad_native_formats_state": "verified_yes",
      "color_state": "not_verified",
      "display": "10.3 in E Ink Carta 1200",
      "display_state": "verified_fact",
      "ecosystem": "kobo",
      "file_workflow": "15 native formats listed, including EPUB/EPUB3, PDF, MOBI, TXT, HTML, RTF, CBZ and CBR",
      "fit": {
        "documents": 2,
        "ebooks": 3,
        "handwriting": 2,
        "mixed": 3
      },
      "fit_reasons": {
        "documents": "PDF and other supported formats are documented, though workflow behavior varies by file/DRM.",
        "ebooks": "Kobo library access and broad listed native formats support reading-first use.",
        "handwriting": "Notebook and direct reading/annotation workflows are part of the product design.",
        "mixed": "The strongest overlap here is ebook reading plus pen/notebook use."
      },
      "front_light_state": "verified_yes",
      "id": "product:o015:kobo-elipsa-2e",
      "path": "/products/kobo-elipsa-2e/",
      "storage": "32 GB",
      "title": "Kobo Elipsa 2E",
      "weight_g": 390,
      "weight_state": "verified_fact"
    },
    {
      "brand": "Amazon",
      "broad_native_formats_state": "unknown",
      "color_state": "verified_no",
      "display": "11 in glare-free monochrome",
      "display_state": "verified_fact",
      "ecosystem": "kindle",
      "file_workflow": "USB-C file transfer and current Kindle/OneNote guides documented; exact format/DRM behavior remains workflow-specific",
      "fit": {
        "documents": 2,
        "ebooks": 3,
        "handwriting": 2,
        "mixed": 3
      },
      "fit_reasons": {
        "documents": "USB-C file transfer and document-related guides are documented, with format/DRM caveats.",
        "ebooks": "Best aligned when the existing reading library is centered on Kindle.",
        "handwriting": "Premium Pen and notebook use are core features, but in-book writing follows Amazon’s own note model.",
        "mixed": "Strong reading-plus-writing overlap for people already committed to Kindle."
      },
      "front_light_state": "verified_yes",
      "id": "product:o015:kindle-scribe-3rd-generation",
      "path": "/products/kindle-scribe-3rd-generation/",
      "storage": "32 GB or 64 GB",
      "title": "Kindle Scribe (3rd Generation)",
      "weight_g": 400,
      "weight_state": "approximate_verified_fact"
    }
  ],
  "ranking_rule": "Use-case fit scores are ICU editorial synthesis on a 0–3 scale. Hard requirements exclude candidates before scoring. Scores never use affiliate rate, merchant payout, commission, link availability, or seller priority.",
  "schema_version": "1.0.0",
  "unknown_constraints": {
    "battery_endurance": "The source set does not support one comparable fixed battery-duration number across all three products.",
    "current_prices": "ICU did not cache a current comparable all-in price for the three candidates.",
    "repairability": "Repairability/battery replacement was not established for the family. A repairability hard requirement therefore returns no recommendation.",
    "waterproofing": "No candidate has a verified waterproof rating in the O015 source set. A waterproofing hard requirement therefore returns no recommendation."
  }
}