diff --git a/src/Infrastructure/BotSharp.Abstraction/Conversations/Enums/MessageTypeName.cs b/src/Infrastructure/BotSharp.Abstraction/Conversations/Enums/MessageTypeName.cs
index e59622bb6..e87fa669b 100644
--- a/src/Infrastructure/BotSharp.Abstraction/Conversations/Enums/MessageTypeName.cs
+++ b/src/Infrastructure/BotSharp.Abstraction/Conversations/Enums/MessageTypeName.cs
@@ -3,6 +3,10 @@ namespace BotSharp.Abstraction.Conversations.Enums;
 public static class MessageTypeName
 {
     public const string Plain = "plain";
+    /// <summary>
+    /// Persisted for record/audit but excluded from default LLM dialog history.
+    /// </summary>
+    public const string RecordOnly = "record_only";
     public const string Notification = "notification";
     public const string FunctionCall = "function";
     public const string Audio = "audio";
diff --git a/src/Infrastructure/BotSharp.Core/Routing/RoutingService.GetConversationContent.cs b/src/Infrastructure/BotSharp.Core/Routing/RoutingService.GetConversationContent.cs
index 60e81bbe9..b468d3afa 100644
--- a/src/Infrastructure/BotSharp.Core/Routing/RoutingService.GetConversationContent.cs
+++ b/src/Infrastructure/BotSharp.Core/Routing/RoutingService.GetConversationContent.cs
@@ -1,3 +1,5 @@
+using BotSharp.Abstraction.Conversations.Enums;
+
 namespace BotSharp.Core.Routing;
 
 public partial class RoutingService
@@ -6,8 +8,8 @@ public async Task<string> GetConversationContent(List<RoleDialogModel> dialogs,
     {
         var agentService = _services.GetRequiredService<IAgentService>();
         var conversation = "";
-
-        foreach (var dialog in dialogs.TakeLast(maxDialogCount))
+        var conversationDialogs = dialogs.Where(x => x.MessageType != MessageTypeName.RecordOnly).TakeLast(maxDialogCount).ToList();
+        foreach (var dialog in conversationDialogs)
         {
             var role = dialog.Role;
             if (role != AgentRole.User)