Engineering notes
Articles for people who
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Rewrites on React, Node.js, TypeScript and AI. A translated body is shown when it exists. If it does not, you see the English text and a note that says so.
Tagged: contextual-retrieval
Index-Time RAG Quality: Chunk Types, Cleanup and Retrieval Labels
Index-time RAG quality: build text, table and image chunks, scrub parser noise, and add LLM-written retrieval labels that roughly halved failed lookups.
12 min readContextual Retrieval for RAG: What the 67% Figure Hides, What It Costs and When It Fails
Contextual retrieval for RAG: how situating prefixes fix orphaned chunks, why the 67% figure stacks three changes, what prompt caching saves, and when it fails.
13 min read
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About these articles
Yes. Each piece is an original English rewrite prepared for this site. Structure and code examples follow the source material; prose is rewritten and checked for overlap before export.
English is the source. Another language is shown only when that translation body exists. A missing or empty translation stays in English, including on a localized URL.
New drafts land in the publish queue as they pass editorial checks. Running the site import picks up only new or changed slugs — nothing is duplicated.
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