diff --git a/internal/models/statistics.go b/internal/models/statistics.go
index 8ad224a..6581084 100644
--- a/internal/models/statistics.go
+++ b/internal/models/statistics.go
@@ -11,10 +11,87 @@ type Statistics struct {
 	Duration  time.Duration `json:"duration"`
 
 	InterfaceType  InterfaceType `json:"interface_type"`
+	TaskRuns       int           `json:"task_runs"`
 	TasksCompleted int           `json:"tasks_completed"`
-	ButtonClicks   ButtonClicks  `json:"button_clicks"`
+	TasksFailed    int           `json:"tasks_failed"`
+
+	TotalDurationMs   int64 `json:"total_duration_ms"`
+	AverageDurationMs int64 `json:"average_duration_ms"`
+
+	TotalUserActions        int `json:"total_user_actions"`
+	QuestionnairesCompleted int `json:"questionnaires_completed"`
+	QuestionnairesAbandoned int `json:"questionnaires_abandoned"`
+
+	ValidationAttempts     int `json:"validation_attempts"`
+	ValidationSuccesses    int `json:"validation_successes"`
+	ValidationFailures     int `json:"validation_failures"`
+	ValidationChecksPassed int `json:"validation_checks_passed"`
+	ValidationChecksFailed int `json:"validation_checks_failed"`
+
+	LastTaskName string       `json:"last_task_name"`
+	LastRunID    int          `json:"last_run_id"`
+	ButtonClicks ButtonClicks `json:"button_clicks"`
 }
 
 type ButtonClicks struct {
 	Clicks int `json:"clicks"`
 }
+
+type TaskMetricsFile struct {
+	TaskName  string           `json:"task_name"`
+	UpdatedAt time.Time        `json:"updated_at"`
+	Summary   TaskStatsSummary `json:"summary"`
+	Runs      []TaskRunMetrics `json:"runs"`
+}
+
+type TaskStatsSummary struct {
+	TotalRuns               int           `json:"total_runs"`
+	CompletedRuns           int           `json:"completed_runs"`
+	IncompleteRuns          int           `json:"incomplete_runs"`
+	TotalDurationMs         int64         `json:"total_duration_ms"`
+	AverageDurationMs       int64         `json:"average_duration_ms"`
+	TotalUserActions        int           `json:"total_user_actions"`
+	QuestionnairesCompleted int           `json:"questionnaires_completed"`
+	QuestionnairesAbandoned int           `json:"questionnaires_abandoned"`
+	ValidationAttempts      int           `json:"validation_attempts"`
+	ValidationSuccesses     int           `json:"validation_successes"`
+	ValidationFailures      int           `json:"validation_failures"`
+	ValidationChecksPassed  int           `json:"validation_checks_passed"`
+	ValidationChecksFailed  int           `json:"validation_checks_failed"`
+	LastInterfaceType       InterfaceType `json:"last_interface_type"`
+	FirstRunStartedAt       time.Time     `json:"first_run_started_at"`
+	LastRunStartedAt        time.Time     `json:"last_run_started_at"`
+	LastRunEndedAt          time.Time     `json:"last_run_ended_at"`
+}
+
+type TaskRunMetrics struct {
+	RunID                  int            `json:"run_id"`
+	TaskName               string         `json:"task_name"`
+	InterfaceType          InterfaceType  `json:"interface_type"`
+	StartedAt              time.Time      `json:"started_at"`
+	EndedAt                time.Time      `json:"ended_at"`
+	DurationMs             int64          `json:"duration_ms"`
+	Completed              bool           `json:"completed"`
+	ValidationAttempts     int            `json:"validation_attempts"`
+	ValidationSuccesses    int            `json:"validation_successes"`
+	ValidationFailures     int            `json:"validation_failures"`
+	ValidationChecksPassed int            `json:"validation_checks_passed"`
+	ValidationChecksFailed int            `json:"validation_checks_failed"`
+	LastValidationMessage  string         `json:"last_validation_message,omitempty"`
+	QuestionnaireCompleted bool           `json:"questionnaire_completed"`
+	QuestionnaireUserQuit  bool           `json:"questionnaire_user_quit"`
+	QuestionnaireAnswers   map[string]any `json:"questionnaire_answers,omitempty"`
+	Logs                   []TaskLogEntry `json:"logs"`
+	Error                  string         `json:"error,omitempty"`
+}
+
+type TaskLogEntry struct {
+	Timestamp time.Time `json:"timestamp"`
+	Level     string    `json:"level"`
+	Message   string    `json:"message"`
+	Source    string    `json:"source,omitempty"`
+	Action    string    `json:"action,omitempty"`
+	Target    string    `json:"target,omitempty"`
+	Result    string    `json:"result,omitempty"`
+	Attempt   int       `json:"attempt,omitempty"`
+}