Show HN: LangGraph architecture that scales (hexagonal pattern, 110 tests)
github.comI kept hitting the same wall with LangGraph: tutorials show you how to build a graph, not how to maintain one when you have 8 nodes, 3 agents, and shared state across subgraphs.
So I built a reference architecture with: - Platform layer separation (framework-independent core) - Contract validation on every state mutation - 110 tests including architecture boundary enforcement - Patterns that AI coding agents can't accidentally break
Repo: https://github.com/cleverhoods/sagecompass Wrote about the patterns: https://dev.to/cleverhoods/from-prompt-to-platform-architect...
It's MIT licensed. Would love feedback on the approach - especially from anyone who's scaled LangGraph past the tutorial stage. Is this something you are running in prod? Could you share more about your use case? Not yet, that goal is further down the line as I’m progressing through the development.