Articles for people who
ship the stack
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
RAG Document Assistant with Testable Services and Next.js Chat
Split HTTP from pure Python services, index documents, cite segments, and ship a split-panel UI without forking retrieval.
4200 wordsRead articleLangGraph Control Planes vs Knowledge Graphs: Build Order That Survives Contact
Separate control-flow graphs from data graphs, checkpoint human interrupts, and add GraphRAG only after multi-hop failures are measured.
4078 wordsRead articleLangChain TextLoader: plain .txt into Document objects
TextLoader reads .txt into LangChain Documents with source metadata—no chunking—and autodetect_encoding rescues Shift-JIS and other non-UTF-8 files.
727 wordsRead articleAgentic RAG on Azure AI Search with plan, evaluate, and rewrite loops
Hybrid search plus LangGraph reflection, ACL trimming, grounding checks, and telemetry make enterprise retrieval a closed loop—not a single shot.
1801 wordsRead articleEnterprise investigation assistants need EA, LangGraph, MCP, and RAG
Cross-source investigations join tickets, logs, and ledgers under governance—tools prove, RAG explains, and phased architecture beats chatbot demos.
1685 wordsRead articleLangGraph fleet triage: emergency short-circuit before RAG diagnostics
WhatsApp vehicle reports need triage first—emergency stop orders bypass retrieval, while ordinary symptoms run manuals, Llama generation, and faithfulness eval.
1225 wordsRead articleLangGraph research agent with LlamaIndex retrieval and HITL coding
Format-aware chunking, structured intent routing, parallel specialist retrievers, and interrupt-gated CLI coding turn papers into executable experiments safely.
839 wordsRead articleCross-Thread Long-Term Memory Stores in LangGraph
Namespaces, put/get/search, semantic retrieval, remember-then-chat graphs, deduped writes, and Postgres-backed persistence.
4349 wordsRead articleOntology-Aware GraphRAG: When Vectors Need Typed Relationships
How identifier anchors, ontology contracts, rank fusion, and cite-or-reject gates fix RAG failures on CVEs, multi-hop ownership, and unspoken graph facts.
2819 wordsRead article
About these articles
Request a 24h estimate
Need the same stack in a production operator layer? Send the brief — estimate within 24 hours.