Update multiagents.py

multiagents.py

@@ -101,30 +101,31 @@ class MultiAgent:
         print("BasicAgent initialized.")
 
     def __call__(self, question: str) -> str:
-        mylog(self.__class__.__name__, question)        
+        mylog(self.__class__.__name__, question)
 
         try:
-            prefix = """You are the top agent of a multi-agent system that can answer questions by coordinating the work of other agents.
-            You will receive a question and you will decide which agent to use to answer it.
-            You can use the web_agent to search the web for information and for fetching the content of a web page, or the audiovideo_agent to extract information from video or audio files.
-            You can also use your own knowledge to answer the question.
-            You need to respect the output format that is given to you.
-            Finding the correct answer to the question need reasoning and plannig, read the question carrefully, think step by step and do not skip any steps.
-            """
-
-            full_prompt = (
-                prefix.strip()
-                + "\n\nTHE QUESTION:\n"
-                + question.strip()
-                + "\n\n"
-                + myprompts.output_format.strip()
+            prefix = (
+                "You are the top agent of a multi-agent system that can answer questions "
+                "by coordinating the work of other agents.\n"
+                "- Use `web_agent` to search or fetch webpage content.\n"
+                "- Use `audiovideo_agent` to process YouTube videos, images, or audio files.\n"
+                "- You can also use your own reasoning.\n\n"
+                "Find the correct answer step by step, then format your output properly."
             )
+
+            # ✅ Ensure everything is plain string
+            full_prompt = f"{prefix.strip()}\n\nTHE QUESTION:\n{question.strip()}\n\n{myprompts.output_format.strip()}"
+
+            # ✅ Hard enforcement of string format
             if not isinstance(full_prompt, str):
                 full_prompt = str(full_prompt)
-                
-            fixed_answer = manager_agent.run(full_prompt)
-            
-            return fixed_answer
+
+            # ✅ Safe model call
+            result = manager_agent.run(full_prompt)
+
+            # Optionally truncate very long answers to avoid submission rejection
+            return result if isinstance(result, str) else str(result)
+
         except Exception as e:
             error = f"An error occurred while processing the question: {e}"
             print(error)