diff --git a/chat.proto b/chat.proto
index 4ac1da6..cfe6995 100644
--- a/chat.proto
+++ b/chat.proto
@@ -45,11 +45,16 @@ message ChatEntry {                                         // `autogenpb:nomute
         repeated CodeSnippet        Snippets          = 8;
 }
 
+message SessionStats {                                      // `autogenpb:nomutex`
+        string                      uuid              = 1;
+}
+
 message Chat {                                              // `autogenpb:nomutex`
         string                      uuid              = 1;  // `autogenpb:unique` `autogenpb:sort`
         google.protobuf.Timestamp   ctime             = 2;
         string                      ChatName          = 3;
         repeated ChatEntry          Entries           = 4;
+        repeated SessionStats       Session           = 5;
 }
 
 message Chats {                                             // `autogenpb:marshal` `autogenpb:mutex`