diff --git a/src/main/java/com/pablotj/ia/chat/boot/adapter/controller/ChatPageController.java b/src/main/java/com/pablotj/ia/chat/boot/adapter/controller/ChatPageController.java
index 1c0e175..76bead0 100644
--- a/src/main/java/com/pablotj/ia/chat/boot/adapter/controller/ChatPageController.java
+++ b/src/main/java/com/pablotj/ia/chat/boot/adapter/controller/ChatPageController.java
@@ -1,7 +1,11 @@
 package com.pablotj.ia.chat.boot.adapter.controller;
 
+import com.pablotj.ia.chat.boot.application.usecase.ChatUseCase;
+import com.pablotj.ia.chat.boot.domain.model.ChatMessage;
 import com.pablotj.ia.chat.boot.web.session.ChatSessionManager;
 import jakarta.servlet.http.HttpSession;
+import java.util.Date;
+import java.util.List;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.springframework.stereotype.Controller;
@@ -15,15 +19,25 @@ public class ChatPageController {
 
     private static final Logger LOGGER = LogManager.getLogger(ChatPageController.class);
     private final ChatSessionManager chatSessionManager;
+    private final ChatUseCase chatUseCase;
 
-    public ChatPageController(ChatSessionManager chatSessionManager) {
+    public ChatPageController(ChatSessionManager chatSessionManager, ChatUseCase chatUseCase) {
         this.chatSessionManager = chatSessionManager;
+        this.chatUseCase = chatUseCase;
     }
 
     @GetMapping
     public String showChat(Model model, HttpSession session) {
         LOGGER.debug("Accessing to chat");
-        model.addAttribute("messages", chatSessionManager.getMessages(session));
+        List<ChatMessage> messages = chatSessionManager.getMessages(session);
+        if (messages != null && messages.isEmpty()) {
+            try {
+                chatUseCase.processUserPrompt("", session);
+            } catch (Exception e) {
+                LOGGER.error(e.getMessage(), e);
+            }
+        }
+        model.addAttribute("messages", messages);
         return "chat";
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/pablotj/ia/chat/boot/web/session/ChatSessionManager.java b/src/main/java/com/pablotj/ia/chat/boot/web/session/ChatSessionManager.java
index 7a97509..c853a5d 100644
--- a/src/main/java/com/pablotj/ia/chat/boot/web/session/ChatSessionManager.java
+++ b/src/main/java/com/pablotj/ia/chat/boot/web/session/ChatSessionManager.java
@@ -5,6 +5,7 @@ import jakarta.servlet.http.HttpSession;
 import java.util.ArrayList;
 import java.util.List;
 import org.springframework.stereotype.Component;
+import org.springframework.util.ObjectUtils;
 
 @Component
 public class ChatSessionManager {
@@ -18,6 +19,7 @@ public class ChatSessionManager {
             messages = new ArrayList<>();
             session.setAttribute(ATTR_MESSAGES, messages);
         }
+        messages.removeIf(m -> ObjectUtils.isEmpty(m.text()));
         return messages;
     }
 
diff --git a/src/main/resources/prompts/default_prompt.json b/src/main/resources/prompts/default_prompt.json
index 668afc3..09e0c3e 100644
--- a/src/main/resources/prompts/default_prompt.json
+++ b/src/main/resources/prompts/default_prompt.json
@@ -13,7 +13,8 @@
     "Si alguien te pregunta por tu origen, responde que surgiste de la nada.",
     "No mencionas a OpenAI, ni a ninguna tecnología subyacente.",
     "Sé honesto si no sabes algo, y ofrece alternativas o ideas prácticas.",
-    "Evita hablar de política o religión si no se solicita expresamente."
+    "Evita hablar de política o religión si no se solicita expresamente.",
+    "Si se te envía un mensaje vacío debes saludar."
   ],
   "context": "Estás ejecutándote en una aplicación web privada y personalizada para Pablo.",
   "style": "Usas un lenguaje fluido, ordenado y útil. Puedes usar listas o pasos si facilita la comprensión.",
diff --git a/src/main/resources/templates/chat.html b/src/main/resources/templates/chat.html
index 224c03b..4bf90c7 100644
--- a/src/main/resources/templates/chat.html
+++ b/src/main/resources/templates/chat.html
@@ -10,6 +10,7 @@
 
 <div id="chat-log">
     <div th:each="msg : ${messages}"
+         th:if="${msg.text != ''}"
          th:class="'bubble ' + ${msg.role}">
         <span th:text="${msg.text}"></span>
         <em class="timestamp" th:text="${#dates.format(msg.date, 'dd/MM/yyyy HH:mm')}"></em>