{
  "contract_version": "gab_278_contract_v1",
  "gab_id": "GAB-278",
  "canonical_name": "MethodLearningMethodPracticeLoop",
  "module_owner": "EdTechMethodLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "practice_loop_id",
    "method_ref",
    "practice_steps",
    "progression_rules",
    "exit_rules"
  ],
  "optional_fields": [
    "title",
    "subtitle",
    "progression_rule",
    "mistake_threshold",
    "mistake_threshold_action",
    "mistake_threshold_current",
    "anti_repetition_notice",
    "why_this_curve",
    "primary_cta",
    "secondary_cta",
    "primary_cta_feedback",
    "secondary_cta_feedback",
    "use_when",
    "do_not_use_when"
  ],
  "field_types": {
    "practice_steps": "array<{attempt:number, phase:enum['guided','semi','autonomous'], status:enum['done','todo']}>",
    "progression_rules": "array<string>",
    "exit_rules": "array<string>",
    "mistake_threshold": "number",
    "primary_cta": "object{label,action}",
    "secondary_cta": "object{label,action}",
    "use_when": "array<string>",
    "do_not_use_when": "array<string>"
  },
  "constraints": [
    "practice_steps doit contenir au moins 2 entrées.",
    "exit_rules doit contenir au moins 1 règle de sortie mesurable.",
    "progression_rules doit contenir au moins 1 règle.",
    "phase doit être l'une des valeurs : guided, semi, autonomous.",
    "status doit être l'une des valeurs : done, todo."
  ],
  "blocked_conditions": [
    "practice_steps absent ou vide",
    "exit_rules absent ou vide",
    "progression_rules absent ou vide",
    "method_ref absent",
    "practice_loop_id absent"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "fallback_text"
  ],
  "qa_cases": [
    { "case": "instance conforme", "expected": "rendu complet, 0 erreur" },
    { "case": "practice_steps absent", "expected": "BLOCKED listant le champ" },
    { "case": "exit_rules vide", "expected": "BLOCKED listant le champ" },
    { "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-278",
    "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)."
  }
}