Update agent.py

agent.py

@@ -115,7 +115,7 @@ def arvix_search(query: str) -> str:
 
 # load the system prompt from the file
 with open("system_prompt.txt", "r", encoding="utf-8") as f:
-    System_prompt = f.read()
+    system_prompt = f.read()
 
 # System message
 sys_msg = SystemMessage(content=system_prompt)