Not trigger if replyMessage.FunctionName is empty.

src/Infrastructure/BotSharp.Abstraction/Conversations/Models/RoleDialogModel.cs

@@ -48,6 +48,9 @@ public class RoleDialogModel : ITrackableMessage
     [JsonIgnore(Condition = JsonIgnoreCondition.Always)]
     public string ImageUrl { get; set; }
 
+    /// <summary>
+    /// Remember to set Message.Content as well
+    /// </summary>
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
     public RichContent<IRichMessage>? RichContent { get; set; }
 

src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.SendMessage.cs

@@ -53,7 +53,7 @@ public partial class ConversationService
             hook.SetAgent(agent)
                 .SetConversation(conversation);
 
-            if (replyMessage == null)
+            if (replyMessage == null || string.IsNullOrEmpty(replyMessage.FunctionName))
             {
                 await hook.OnMessageReceived(message);
             }