{"library":"deepagents","install":[{"cmd":"pip install deepagents","imports":["from deepagents import create_deep_agent\nfrom langchain.chat_models import init_chat_model\n\n# Custom model\nmodel = init_chat_model('openai:gpt-4o')\nagent = create_deep_agent(\n    model=model,\n    tools=[],\n    system_prompt='You are a research assistant.'\n)\n\n# invoke with messages dict — not plain string\nresult = agent.invoke({\n    'messages': [{'role': 'user', 'content': 'Research LangGraph'}]\n})\nprint(result['messages'][-1].content)"]},{"cmd":"pip install deepagents langchain-openai","imports":[]}]}