diff --git a/utils/verify-db-consistency.sh b/utils/verify-db-consistency.sh
new file mode 100755
index 0000000..87dd7f6
--- /dev/null
+++ b/utils/verify-db-consistency.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/zsh
+
+if [ $# -ne 1 ] || [ $1 = "-h" ]
+then
+	echo "usage: $0 todod-storage"
+	exit 0
+fi
+
+storage=$1
+
+echo "verify the list-tasks relation: list have tasks, these tasks must exists"
+for list in ${storage}/data/lists/indices/by_id/*
+do
+	echo "list: $list"
+	# echo "Tasks:"
+	cat $list | jq -r ".tasks[]" | while read task
+	do
+		ls ${storage}/data/tasks/indices/by_id/$task.json 2>/dev/null 1>/dev/null
+		if [ $? -eq 0 ]
+		then
+			# echo "- task $task"
+		else
+			echo "- task: ${storage}/data/tasks/indices/by_id/$task.json doesn't exist" 
+		fi
+	done
+done