Update app.py

app.py

@@ -58,6 +58,9 @@ class BasicAgent:
             # system prompt + question
             system_prompt = """
             You are Celum, an advanced agent skilled at using external tools and step-by-step reasoning to solve real-world problems.
+            You may freely think, reason, and use tools or your own knowledge as needed to solve the problem.
+            When you are ready to submit your answer,ONLY output your final answer in the exact format required by the question.DO NOT add any extra context.
+            If you cannot answer, return the word 'unknown'.           
             """
             files_prompt = ""
             if files: