respuesta segundo graph

app.py

@@ -735,7 +735,23 @@ async def stream_agent_response(question: str, chat_history: List[List[str]]) ->
                                 title="Distribución"
                             )
                             if chart_fig is not None:
-                                logger.info(f"Chart generated from text fallback: type={desired_type}, items={len(data)}")
+                                logger.info(
+                                    f"Chart generated from text fallback: type={desired_type}, items={len(data)}"
+                                )
+                                # Replace the assistant message so it acknowledges
+                                # that it used the previous answer (conversation memory)
+                                # to build the visualization. This avoids confusing
+                                # replies like "I need more information" when we
+                                # already have parsable data from the last turn.
+                                summary_lines = [
+                                    f"- {d['label']}: {d['value']}" for d in data
+                                ]
+                                assistant_message["content"] = (
+                                    "He generado un gráfico "
+                                    f"de {desired_type} usando los datos previos de la "
+                                    "conversación.\n\n"
+                                    "### Datos usados\n" + "\n".join(summary_lines)
+                                )
             
             # Update the assistant's message with the response
             assistant_message["content"] = response_text