diff --git a/migrations/metrics.js b/migrations/metrics.js
new file mode 100644
index 0000000000..116cc4648c
--- /dev/null
+++ b/migrations/metrics.js
@@ -0,0 +1,27 @@
+var
+    corrupt = {
+        $or: [
+            {lastCron: {$exists:false}},
+            {lastCron: 'new'}
+        ]
+    }
+
+    un_registered = {
+        "auth.local": {$exists: false},
+        "auth.facebook": {$exists: false}
+    },
+
+    registered = {
+        $or: [
+            { 'auth.local': { $exists: true }},
+            { 'auth.facebook': { $exists: true }}
+        ]
+    };
+
+print('corrupt: ' + db.users.count(corrupt));
+print('unregistered: ' + db.users.count(un_registered));
+print('registered: ' + db.users.count(registered));
+
+// TODO active users
+// - history > 14 entries
+// - lastCron < 14d
\ No newline at end of file