diff --git a/internal/store/rule.go b/internal/store/rule.go
index e3c9e9c..504b082 100644
--- a/internal/store/rule.go
+++ b/internal/store/rule.go
@@ -17,7 +17,10 @@ func (s *Store) CreateRule(ctx context.Context, r *model.Rule, channelIDs []int)
 	defer tx.Rollback()
 
 	query := `INSERT INTO rule (source_id, event, template_id, conditions, enabled) VALUES (?, ?, ?, ?, ?)`
-	condsJSON, _ := marshalJSON(r.Conditions)
+	condsJSON, err := marshalJSON(r.Conditions)
+	if err != nil {
+		return fmt.Errorf("marshal conditions: %w", err)
+	}
 	result, err := tx.ExecContext(ctx, query, r.SourceID, r.Event, r.TemplateID, condsJSON, r.Enabled)
 	if err != nil {
 		return fmt.Errorf("create rule: %w", err)
@@ -79,7 +82,10 @@ func (s *Store) UpdateRule(ctx context.Context, id int, r *model.Rule, channelID
 	}
 	defer tx.Rollback()
 
-	condsJSON, _ := marshalJSON(r.Conditions)
+	condsJSON, err := marshalJSON(r.Conditions)
+	if err != nil {
+		return fmt.Errorf("marshal conditions: %w", err)
+	}
 	_, err = tx.ExecContext(ctx, `UPDATE rule SET source_id=?, event=?, template_id=?, conditions=?, enabled=? WHERE id=?`,
 		r.SourceID, r.Event, r.TemplateID, condsJSON, r.Enabled, id)
 	if err != nil {
@@ -87,7 +93,9 @@ func (s *Store) UpdateRule(ctx context.Context, id int, r *model.Rule, channelID
 	}
 
 	if channelIDs != nil {
-		_, _ = tx.ExecContext(ctx, `DELETE FROM rule_channel WHERE rule_id = ?`, id)
+		if _, err := tx.ExecContext(ctx, `DELETE FROM rule_channel WHERE rule_id = ?`, id); err != nil {
+			return fmt.Errorf("delete rule channels: %w", err)
+		}
 		for _, chID := range channelIDs {
 			_, err := tx.ExecContext(ctx, `INSERT INTO rule_channel (rule_id, channel_id, enabled) VALUES (?, ?, 1)`, id, chID)
 			if err != nil {
@@ -100,7 +108,10 @@ func (s *Store) UpdateRule(ctx context.Context, id int, r *model.Rule, channelID
 
 func (s *Store) DeleteRule(ctx context.Context, id int) error {
 	_, err := s.DB.ExecContext(ctx, `DELETE FROM rule WHERE id = ?`, id)
-	return err
+	if err != nil {
+		return fmt.Errorf("delete rule %d: %w", id, err)
+	}
+	return nil
 }
 
 func (s *Store) SetRuleEnabled(ctx context.Context, id int, enabled bool) error {
@@ -109,7 +120,10 @@ func (s *Store) SetRuleEnabled(ctx context.Context, id int, enabled bool) error
 		v = 1
 	}
 	_, err := s.DB.ExecContext(ctx, `UPDATE rule SET enabled = ? WHERE id = ?`, v, id)
-	return err
+	if err != nil {
+		return fmt.Errorf("set rule enabled %d: %w", id, err)
+	}
+	return nil
 }
 
 func (s *Store) GetRuleChannels(ctx context.Context, ruleID int) ([]model.RuleChannel, error) {
@@ -127,7 +141,10 @@ func (s *Store) SetRuleChannelEnabled(ctx context.Context, ruleID, channelID int
 		v = 1
 	}
 	_, err := s.DB.ExecContext(ctx, `UPDATE rule_channel SET enabled = ? WHERE rule_id = ? AND channel_id = ?`, v, ruleID, channelID)
-	return err
+	if err != nil {
+		return fmt.Errorf("set rule channel enabled %d/%d: %w", ruleID, channelID, err)
+	}
+	return nil
 }
 
 // helpers