{
  "contract_version": "gab_238_contract_v1",
  "gab_id": "GAB-238",
  "canonical_name": "FeedbackLearningCompareAnswer",
  "module_owner": "EdTechFeedbackLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "compare_id",
    "user_answer",
    "expected_answer",
    "diff_items",
    "primary_cta"
  ],
  "optional_fields": [
    "title",
    "subtitle",
    "compare_type",
    "reason_title",
    "reason_text",
    "privacy_note",
    "secondary_cta"
  ],
  "field_types": {
    "compare_type": "enum['missing_elements','wrong_structure','partial_correct','extra_content','order_issue']",
    "user_answer": "string — raw answer, affichage transitoire uniquement (jamais stocké durablement)",
    "expected_answer": "string — template pédagogique validé (jamais inventé par IA en contexte sensible)",
    "diff_items": "array<{status:enum['present','missing'],label:string,detail:string}>",
    "primary_cta": "object{label:string,action:string}",
    "secondary_cta": "object{label:string,action:string}"
  },
  "constraints": [
    "user_answer : affichage transitoire uniquement — ne jamais stocker durablement (doctrine privacy-aware).",
    "expected_answer : doit être un template pédagogique validé — jamais généré par IA à la volée en contexte sensible.",
    "diff_items : au moins 1 item requis ; chaque item porte un status 'present' ou 'missing'.",
    "primary_cta : bouton structurel (HTML), libellé et action venant du JSON.",
    "No-reward-write : ce gabarit n'écrit jamais de XP, coins ou badges — c'est PlayKit qui orchestre la gamification."
  ],
  "blocked_conditions": [
    "compare_id absent",
    "user_answer absent",
    "expected_answer absent",
    "diff_items vides ou absents",
    "primary_cta absent"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "fallback_text"
  ],
  "qa_cases": [
    { "case": "instance conforme", "expected": "rendu complet, 0 erreur — colonnes yours/expected affichées, diff-items listés" },
    { "case": "champ requis manquant (ex: user_answer absent)", "expected": "BLOCKED listant le champ manquant" },
    { "case": "diff_items vides []", "expected": "BLOCKED — diff_items vides" },
    { "case": "instance externe injectée via ENGINE.init(ext)", "expected": "le rendu change sans modifier le HTML" },
    { "case": "responsive 375/768/1024", "expected": "colonnes empilées sur mobile, aucun débordement horizontal" },
    { "case": "primary_cta cliqué", "expected": "état visuel confirm affiché (panel mint)" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-238",
    "note": "Ce schema VALIDE l'instance. Le contrat pédagogique complet (input_contract/validation_logic/feedback_scoring_logic) vit dans le CORE-GAB officiel, pas ici (évite la duplication)."
  }
}