{
  "contract_version": "gab_324_contract_v1",
  "gab_id": "GAB-324",
  "canonical_name": "ResearchLearningSourceSelection",
  "module_owner": "EdTechResearchLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "selection_id",
    "intro_text",
    "sources",
    "selection_criteria"
  ],
  "optional_fields": [
    "title",
    "primary_cta",
    "validation_threshold",
    "fallback_text_summary",
    "accessibility",
    "child_safety"
  ],
  "field_types": {
    "selection_id": "string — identifiant unique de la sélection",
    "intro_text": "string — consigne affichée au-dessus de la liste",
    "sources": "array<{source_id:string, icon:string, label:string, status:enum['ok','inacc','low'], feedback:string}> — au moins 2 sources",
    "selection_criteria": "array<string> — critères de sélection (fiabilité, accessibilité, variété…)",
    "primary_cta": "object{label:string, action:string}",
    "validation_threshold": "number — nombre de sources 'ok' requises pour valider (défaut : 2)",
    "fallback_text_summary": "string — résumé accessible de la leçon de sélection"
  },
  "constraints": [
    "sources doit contenir au moins 2 éléments.",
    "Chaque source doit avoir un status parmi ['ok','inacc','low'].",
    "Le moteur valide la sélection quand le nombre de sources 'ok' cliquées atteint validation_threshold.",
    "primary_cta.label vient du JSON — jamais en dur dans le HTML.",
    "Aucun lien externe réel dans sources (protection child_safety)."
  ],
  "blocked_conditions": [
    "sources absentes ou vides (BLOCKED)",
    "selection_criteria absent (BLOCKED)",
    "intro_text absent (BLOCKED)"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "fallback_text"
  ],
  "qa_cases": [
    { "case": "instance conforme", "expected": "rendu complet, 4 sources cliquables, 0 erreur" },
    { "case": "champ requis manquant (sources vide)", "expected": "BLOCKED listant le champ" },
    { "case": "clic source 'ok' × 2", "expected": "état validated atteint, message de succès" },
    { "case": "clic source 'inacc'", "expected": "message fallback affiché (gold/warn)" },
    { "case": "clic source 'low'", "expected": "message fiabilité faible affiché (coral/bad)" },
    { "case": "instance externe injectée", "expected": "le rendu change sans modifier le HTML" },
    { "case": "responsive 375/768/1024", "expected": "aucun débordement horizontal" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-324",
    "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)."
  }
}