https://nsddd.top/tags/langgraph/ Recent content in LangGraph on Xinwei Xiong (cubxxw) - AI, Open Source & Nomad Blog https://nsddd.top/assets/og-image.png https://nsddd.top/assets/og-image.png Hugo -- gohugo.io en-us Wed, 24 Jun 2026 10:00:00 +0800 https://nsddd.top/ai-technology/posts/relay-agent-architecture-design/ Wed, 24 Jun 2026 10:00:00 +0800 https://nsddd.top/ai-technology/posts/relay-agent-architecture-design/ Using the Relay open-source job-search Agent project as a case study, this article fully breaks down every key design decision in a production-grade multi-agent system: why split a single Agent into 5, how to implement HITL checkpoints with LangGraph, how a three-tier LLM router precisely tracks costs, how a fabrication guard validates at runtime, and how a hybrid backend (Hono/Bun + FastAPI/Python) decouples cleanly. Whether you are building your first Agent PoC or pushing toward production, there are design patterns here you can take away.