My RAG Assistant Was Lying to Me About Having a Memory
Adding Langfuse tracing to a RAG pipeline with zero observability. Should've been fifteen minutes. Was not.
Jul 18, 20268 min read13

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Adding Langfuse tracing to a RAG pipeline with zero observability. Should've been fifteen minutes. Was not.

I built an evaluation pipeline for my RAG system expecting clean numbers. Instead I got variance, three bugs, and a diagnosis I almost missed.

A practical walkthrough of the architecture, the governance layer that made it usable, and the things I got wrong before I got them right.
