# LangGraph 核心依赖
langgraph>=0.2.0

# LangChain Community (用于 ChatOpenAI)
langchain-community>=0.3.0

# OpenAI SDK (DeepSeek API 兼容 OpenAI 格式)
openai>=1.0.0

# Langfuse
langfuse>=3.0.0,<4.0.0