I wasted three weeks debugging a RAG system before I realized the LLM wasn't the problem. The embeddings weren't the problem. The vector database wasn't the problem. The chunks were garbage. We were splitting 340,000 legal documents into 512-token fixed-size chunks. Definitions got separated from the clauses that referenced them. Tables split mid-row. Section headers landed at the end of one chunk
Semantic Chunking with Overlap and Section-Awareness: The RAG Tutorial Nobody Wrote
Nitin Srivastava·Dev.to··1 min read
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