import asyncio import json import os import sys sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))) from dotenv import load_dotenv load_dotenv() from browser_use import Agent, ChatOpenAI extend_system_message = ( 'REMEMBER the most important RULE: ALWAYS open first a new tab and go first to url wikipedia.com no matter the task!!!' ) # or use override_system_message to completely override the system prompt async def main(): task = 'do google search to find images of Elon Musk' model = ChatOpenAI(model='gpt-4.1-mini') agent = Agent(task=task, llm=model, extend_system_message=extend_system_message) print( json.dumps( agent.message_manager.system_prompt.model_dump(exclude_unset=True), indent=4, ) ) await agent.run() if __name__ == '__main__': asyncio.run(main())