{
  "contract_version": "gab_065_contract_v1",
  "gab_id": "GAB-065",
  "canonical_name": "StoryCheckpoint",
  "module_owner": "EdTechStoryLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "checkpoint_id",
    "question",
    "primary_cta",
    "secondary_cta",
    "feedback_yes",
    "feedback_no"
  ],
  "optional_fields": [
    "icon",
    "section_label",
    "accessibility"
  ],
  "field_types": {
    "checkpoint_id": "string — identifiant unique de l'instance checkpoint",
    "question": "string — question d'auto-évaluation posée à l'élève",
    "primary_cta": "object{label:string, icon:string, action:string} — bouton 'oui je sais'",
    "secondary_cta": "object{label:string, icon:string, action:string} — bouton 'pas encore sûr'",
    "feedback_yes": "string — texte affiché quand l'élève clique le CTA oui",
    "feedback_no": "string — texte affiché quand l'élève clique le CTA non",
    "icon": "string — emoji affiché dans le flag icon (défaut 🚩)",
    "section_label": "string — label de section affiché en caps (défaut 'Checkpoint')",
    "accessibility": "object{aria_label_card:string, keyboard_navigable:boolean}"
  },
  "constraints": [
    "primary_cta.label et secondary_cta.label sont les libellés structurels des boutons — ils viennent toujours du JSON.",
    "feedback_yes et feedback_no sont distincts et non vides.",
    "question est une vraie phrase interrogative extraite du contenu source, jamais inventée.",
    "renderer_key doit être 'text_cta' (cartographie officielle)."
  ],
  "blocked_conditions": [
    "question absente (BLOCKED)",
    "primary_cta absent (BLOCKED)",
    "secondary_cta absent (BLOCKED)",
    "gab_id absent (BLOCKED)"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "aria_live_feedback",
    "aria_disabled_on_answered"
  ],
  "qa_cases": [
    { "case": "instance conforme", "expected": "rendu complet, question affichée, 2 boutons actifs, 0 erreur" },
    { "case": "clic primary_cta (yes)", "expected": "feedback_yes affiché en vert mint, boutons désactivés" },
    { "case": "clic secondary_cta (no)", "expected": "feedback_no affiché en gold, boutons désactivés" },
    { "case": "question absente", "expected": "BLOCKED — panel erreur, aucun contenu rendu" },
    { "case": "primary_cta absent", "expected": "BLOCKED — panel erreur" },
    { "case": "instance externe injectée via init(ext)", "expected": "le rendu change sans modifier le HTML" },
    { "case": "responsive 375/768/1024", "expected": "aucun débordement horizontal, boutons empilés sur mobile" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-065",
    "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)."
  }
}