Writing

Essays and technical notes on LLM systems, data engineering, retrieval, agents, and evaluation.

  1. A Retrieval Eval That Survives Index Changes

    Notes on building a small, fixed question set for a RAG system so it measures correctness instead of quietly agreeing with whatever the current index returns.

    RAGEvaluationRetrievalData Quality

  2. Evidence-First LLM Systems

    A working note on the question this site keeps returning to: what evidence should technical work leave behind, and how to design pipelines so the evidence is a byproduct, not a chore.

    MethodologyEvaluationData QualityRAG