Add sleep to avoid rate limits

basic_agent.py

@@ -180,8 +180,8 @@ class BasicAgent:
                 print(f"🔨 Calling Tool: {event.tool_name}")
                 print(f"  With arguments: {event.tool_kwargs}")
 
-            # Avoid ratelimits
-            await asyncio.sleep(0.5)
+            # Avoid ratelimits - 15 requests per minute
+            await asyncio.sleep(4.1)
 
         if self.langfuse:
             self.instrumentor.flush()
@@ -192,4 +192,4 @@ class BasicAgent:
             res = re.sub(r'^.*?FINAL ANSWER:', '', res, flags=re.DOTALL).strip()
             return res
         except:
-            return "No valid agent response could be determined."
+            return "Error occured. No valid agent response could be determined."