// the find
hwchase17/langchain-streamlit-template
A minimal starter template for wiring a LangGraph agent to a Streamlit chat UI. It's three files — main.py, requirements.txt, and a README — so there's almost no actual code here, just a scaffold you customize yourself.
- Dead simple to understand: one file, one function to replace, you're up and running in under five minutes
- Streamlit deployment story is genuinely easy — secrets, one-click deploy, no infra to manage
- LangSmith tracing is mentioned and encouraged from day one, which is the right habit to build
- The README still refers to 'your chain' but the template was updated to LangGraph — the two concepts aren't the same and the mismatch will confuse beginners
- No streaming token output, no session state management, no multi-user isolation — the things you'll immediately need in any real deployment are all left as exercises
- 298 stars for a template that's essentially a Hello World suggests people fork it but don't actually build on it; the 143 forks relative to star count hints at high abandonment
- Last meaningful update was January 2025 and the LangGraph API has moved fast since then — there's a real chance the agent invocation pattern is already stale