Your RAG pipeline is bad at docs because your chunker splits code fences

This story is from 2026-08-28. It is preserved in the archive; the latest stories are on the live feed.

Here is the chunking code from more or less every RAG tutorial published in the last two years: splitter = RecursiveCharacterTextSplitter ( chunk_size = 1000 , chunk_overlap = 200 , ) chunks = splitter . split_documents ( docs ) It works fine on prose. Run it over a documentation site and it quietl…

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1. 2026-08-28 02:36 · DEV Community — AI
   Your RAG pipeline is bad at docs because your chunker splits code fences