{
  "contract_version": "gab_226_contract_v1",
  "gab_id": "GAB-226",
  "canonical_name": "SmartSelectCandidateList",
  "module_owner": "EdTechSmartSelect",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "candidate_list_id",
    "title",
    "summary",
    "ranking_mode",
    "items"
  ],
  "optional_fields": [
    "reason",
    "quality_gate_notice",
    "primary_cta",
    "secondary_cta",
    "accessibility",
    "child_safety"
  ],
  "field_types": {
    "ranking_mode": "enum['best_match','teacher_priority','recent_need','exam_priority','accessibility_first']",
    "items": "array<{rank:integer,is_top:boolean,title:string,description:string,module_type:enum['visual','exercise','adaptive','memory','audio','interactive'],estimated_duration:string,difficulty:string,score:integer(0..100)}>",
    "primary_cta": "object{label,action}",
    "secondary_cta": "object{label,action}",
    "accessibility": "object{keyboard_navigable:boolean,focus_visible:boolean,prefers_reduced_motion:boolean}"
  },
  "constraints": [
    "items doit contenir entre 3 et 7 entrées (min pool vérifiable, max liste courte).",
    "Exactement 1 item avec is_top:true (le top candidat servi en premier).",
    "score dans [0,100] ; reflet du scoring serveur, pas une note officielle.",
    "Toutes les refs items doivent être vérifiées server-side avant affichage (filtrées avant injection).",
    "ranking_mode est un enum strict à 5 valeurs — aucune valeur libre."
  ],
  "blocked_conditions": [
    "items absent ou tableau vide (BLOCKED)",
    "ranking_mode absent (BLOCKED)",
    "title absent (BLOCKED)"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "fallback_text"
  ],
  "qa_cases": [
    { "case": "instance conforme best_match", "expected": "rendu 3 items, top=1 mis en évidence, 0 erreur" },
    { "case": "items vide ou absent", "expected": "BLOCKED listé dans le panneau d'erreur" },
    { "case": "ranking_mode absent", "expected": "BLOCKED listé dans le panneau d'erreur" },
    { "case": "title absent", "expected": "BLOCKED listé dans le panneau d'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, rows empilées sur mobile" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-226",
    "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)."
  }
}