probe

input.cm

@@ -260,16 +260,43 @@ function user(index) {
   return _users[index]
 }
 
+function snapshot() {
+  var users = []
+  var i = 0
+  var u = null
+  var target = null
+  for (i = 0; i < length(_users); i++) {
+    u = _users[i]
+    target = u.target()
+    push(users, {
+      index: u.index,
+      device_kind: u.device_kind(),
+      active_device: u.active_device,
+      paired_devices: array(u.paired_devices),
+      down: u.down(),
+      control_stack_depth: length(u.control_stack),
+      target: target ? (target.name || '(entity)') : null
+    })
+  }
+  return {
+    max_users: _config.max_users,
+    pairing: _config.pairing,
+    action_map: _config.action_map,
+    users: users
+  }
+}
+
 return {
   configure: configure,
   ingest: ingest,
   user: user,
-  
+  snapshot: snapshot,
+
   player1() { return _users[0] },
   player2() { return _users[1] },
   player3() { return _users[2] },
   player4() { return _users[3] },
-  
+
   // Re-export for convenience
   devices: devices,
   backend: backend