Only show playload to AI.

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

@@ -28,6 +28,9 @@ public class RoleDialogModel : ITrackableMessage
 
     public string? SecondaryContent { get; set; }
 
+    /// <summary>
+    /// Postback content
+    /// </summary>
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
     [JsonPropertyName("payload")]
     public string? Payload { get; set; }

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

@@ -51,6 +51,9 @@ public partial class ConversationService
         fileService.SaveMessageFiles(_conversationId, message.MessageId, message.Files);
         message.Files?.Clear();
 
+        // Save payload
+        message.Payload = string.IsNullOrEmpty(replyMessage.Payload) ? message.Content : replyMessage.Payload;
+
         // Before chat completion hook
         foreach (var hook in hooks)
         {

src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationStorage.cs

@@ -104,7 +104,7 @@ public class ConversationStorage : IConversationStorage
             var meta = dialog.MetaData;
             var content = dialog.Content;
             var secondaryContent = dialog.SecondaryContent;
-            var payload = dialog.Payload;
+            var payload = string.IsNullOrEmpty(dialog.Payload) ? null : dialog.Payload;
             var role = meta.Role;
             var currentAgentId = meta.AgentId;
             var messageId = meta.MessageId;

src/Infrastructure/BotSharp.Core/Routing/RoutingService.GetConversationContent.cs

@@ -16,7 +16,7 @@ public partial class RoutingService
                 role = agent.Name;
             }
 
-            conversation += $"{role}: {dialog.SecondaryContent ?? dialog.Content}\r\n";
+            conversation += $"{role}: {dialog.Payload ?? dialog.SecondaryContent ?? dialog.Content}\r\n";
         }
 
         return conversation;

src/Plugins/BotSharp.Plugin.AnthropicAI/Providers/ChatCompletionProvider.cs

@@ -123,7 +123,7 @@ public class ChatCompletionProvider : IChatCompletion
         {
             if (conv.Role == AgentRole.User)
             {
-                messages.Add(new Message(RoleType.User, conv.Content));
+                messages.Add(new Message(RoleType.User, conv.Payload ?? conv.Content));
             }
             else if (conv.Role == AgentRole.Assistant)
             {

src/Plugins/BotSharp.Plugin.AzureOpenAI/Providers/ChatCompletionProvider.cs

@@ -278,7 +278,7 @@ public class ChatCompletionProvider : IChatCompletion
             }
             else if (message.Role == ChatRole.User)
             {
-                var userMessage = new ChatRequestUserMessage(message.Content)
+                var userMessage = new ChatRequestUserMessage(message.Payload ?? message.Content)
                 {
                     // To display Planner name in log
                     Name = message.FunctionName,