{
  "validatedAt": "2026-09-01T08:37:28Z",
  "passed": true,
  "activitiesChecked": 8,
  "stagesChecked": 48,
  "feedbackChecks": 144,
  "viewport": "390x760",
  "contract": {
    "firstIncorrectAttempt": "Learner-facing feedback contains the stage's first progressive hint and does not expose the analytics misconception label.",
    "incorrectAttemptAfterHint": "Learner-facing feedback contains the stage's second progressive hint.",
    "hintsExhausted": "Feedback continues to use the second hint and directs the learner to the visual tutorial instead of offering a nonexistent next hint.",
    "tutorial": "The first stage in each activity retains the misconception diagnosis in the tutorial attempt context.",
    "retry": "Each stage accepts the correct response after remediation.",
    "responsive": "No stage produces horizontal document overflow at 390x760."
  },
  "results": [
    {"activityId":"LO1","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]},
    {"activityId":"LO2","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]},
    {"activityId":"LO3","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]},
    {"activityId":"LO4","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]},
    {"activityId":"LO5","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]},
    {"activityId":"LO6","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]},
    {"activityId":"LO7","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]},
    {"activityId":"LO8","stagesChecked":6,"feedbackChecks":18,"tutorialDiagnosisChecked":true,"overflowStages":0,"pageErrors":[]}
  ],
  "failures": []
}