{
  "contract_version": "gab_259_contract_v1",
  "gab_id": "GAB-259",
  "canonical_name": "CollaborationLearningOralPartnerPractice",
  "module_owner": "EdTechCollaborationLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "oral_practice_id",
    "title",
    "oral_format",
    "roles",
    "items",
    "primary_cta"
  ],
  "optional_fields": [
    "subtitle",
    "icon",
    "oral_format_enum",
    "estimated_duration",
    "timer_duration_seconds",
    "rounds",
    "context_hint",
    "secondary_cta",
    "use_when",
    "do_not_use_when"
  ],
  "field_types": {
    "oral_format": "enum['grand_oral','exposé','présentation','débat_court']",
    "roles": "array<{id,label,description}>  — exactement 2 rôles (orateur + jury)",
    "items": "array<{step:number,label,body}>  — 4 étapes ordonnées",
    "timer_duration_seconds": "number — durée par tour en secondes (ex: 300 = 5 min)",
    "rounds": "number — nombre de tours d'alternance",
    "primary_cta": "object{label,action}",
    "secondary_cta": "object{label,action}"
  },
  "constraints": [
    "roles doit contenir exactement 2 entrées (orateur/jury).",
    "items doit contenir au moins 2 étapes ordonnées par step.",
    "oral_format doit appartenir à l'enum déclaré.",
    "primary_cta.label vient du JSON — jamais hardcodé en HTML.",
    "timer_duration_seconds en secondes (entier positif) si présent."
  ],
  "blocked_conditions": [
    "oral_practice_id absent",
    "roles absent ou vide",
    "items absent ou vide",
    "oral_format absent"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "aria-live pour état timer actif"
  ],
  "qa_cases": [
    { "case": "instance conforme grand_oral", "expected": "rendu complet, 0 erreur" },
    { "case": "champ oral_format absent", "expected": "BLOCKED oral_format absent" },
    { "case": "roles vide []", "expected": "BLOCKED roles absent ou vide" },
    { "case": "items vide []", "expected": "BLOCKED items absent ou vide" },
    { "case": "instance externe injectée (format exposé)", "expected": "le rendu change sans modifier le HTML" },
    { "case": "responsive 375/768/1024", "expected": "aucun débordement horizontal, grille rôles adaptée" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-259",
    "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). Référence chaîne : 256 ParentChild → 257 Explain → 258 Correction → 259 Oral → 260 Team."
  }
}