I Built a Local-First Alternative to LangSmith After Spending $200 Debugging a Pipeline I Couldn't See | Shivnath Tathe

Last month I spent $200 on OpenAI tokens debugging a RAG pipeline. I had no idea which step was eating my budget. LangSmith would have helped — but I didn't want to send my prompts to a cloud service just to debug locally. So I built opensmith. What is opensmith? A local-first LLM pipeline tracer. Zero cloud. Zero setup. Everything stays on your machine. pip install opensmith How it works One decorator: from opensmith import trace @trace ( tags = [ " rag " , " production " ]) def pipeline ( quer