UPDATE 03-Nov

src/main/java/com/example/mapper/messagefilter/ConversationContextMapper.java

@@ -74,6 +74,14 @@ public class ConversationContextMapper {
             text += " " + entry.parameters().toString();
         }
 
+        if (entry.type() == MessageType.AGENT) {
+            text = cleanAgentMessage(text);
+        }
+
         return text;
     }
+
+    private String cleanAgentMessage(String message) {
+        return message.replaceAll("\\s*\\{.*\\}\\s*$", "").trim();
+    }
 }