LangChain
Overview
Open-source agent framework ecosystem. Key products include LangGraph (production-grade agent runtime) and Deep Agents (CLI agent toolkit). Harrison Chase (founder) identified the two fundamental sandbox architecture patterns.
开源智能体框架生态系统。核心产品包括 LangGraph（生产级智能体运行时）和 Deep Agents（命令行智能体工具包）。创始人 Harrison Chase 识别出了两种基础沙盒架构模式。
Key Contributions
- LangGraph: Runtime with streaming, persistence, checkpoints for production agents
- Deep Agents: Open-source Claude Code alternative (MIT license), LLM-provider agnostic
- Sandbox patterns: Agent-Inside-Sandbox vs. Sandbox-As-Tool framework
- Uber LangEffect: Uber built its custom agent framework on top of LangChain/LangGraph
- **LangGraph**：具备流式处理、持久化及检查点功能的生产级智能体运行时
- **Deep Agents**：开源 Claude Code 替代方案（MIT 许可证），与 LLM 提供商无关
- **沙箱模式**：“智能体内置沙箱”与“沙箱即工具”框架
- **Uber LangEffect**：Uber 基于 LangChain/LangGraph 构建的自定义智能体框架