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Original rewrites on React, Node.js, TypeScript and AI — practical notes from the same engineering practice behind our operator software. Article bodies are in English.
Tagged: RAG
Fifty Years of Retrieval Research Hiding Inside Your RAG Pipeline
RAG chunking, hybrid search, HyDE, reranking and evals all have decades-old ancestors in information retrieval. A tour of the research and where it falls short.
17 min readAn AI Engineering Roadmap for 2026: From Python to Agents and LLMOps
A phased 2026 learning path for AI engineering, from Python and math through classical ML and deep learning to RAG, MCP, agents, evals and deployment.
14 min readIndex-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 readThree Ways Production RAG Fails: Fragmented Context, Drift and Misuse
Three ways production RAG fails: fragmented context from chunking, drift as the knowledge base grows, and misuse despite good retrieval, with layer-level fixes.
11 min readSpring AI in the Enterprise: A Support Agent with Tools, RAG and Review
Spring AI for an incident-triage assistant: prompts as contracts, structured output, tool calling, MCP discovery, Qdrant RAG, tracing and bounded agent loops.
13 min readReranking in RAG: Cross-Encoders vs LLM Judges and Their Latency
How a second-stage reranker fixes candidate ordering in RAG, comparing cross-encoders with LLM judges, latency costs, failure modes and how to evaluate them.
14 min readAuditing RAG Retrieval for Stale Chunks, Drift and Noisy Context
A Python audit for RAG retrieval: golden queries, cosine relevance gates, Kolmogorov-Smirnov drift checks and context efficiency, plus how to read the report.
12 min readGraphify, OKF and RAG: Which Context Layer Does Your Codebase Need
Benchmarks show Graphify ties vector RAG on accuracy. Here is how Graphify, Google's OKF and vector RAG fit together, with failure triggers and a decision matrix.
12 min readLlamaIndex Plus LangGraph: A Clean Pattern for RAG Agents
How to build a knowledge base with LlamaIndex and expose it to a LangGraph agent as a tool, with persistence, Chroma, and retriever-only mode explained.
14 min read
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