Engineering Notes

Practical guides for AI, automation, and product engineering.

Field notes from systems I build: agents, n8n workflows, developer tools, micro-SaaS, and production architecture.

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AI EngineeringArchitecting Autonomous Agents: A Builder’s Guide to Complex Workflows

Avnish Yadav – February 22, 2026 · 8 MIN READ

Architecting Autonomous Agents: A Builder’s Guide to Complex Workflows

Moving beyond simple chatbots requires a shift in architecture. Here is how to engineer autonomous agents using ReAct loops, tool usage, and state management to handle complex, multi-step objectives.

AI EngineeringBuilding State: A Deep Dive into LangChain Memory for Conversational AI

Avnish Yadav – February 22, 2026 · 7 MIN READ

Building State: A Deep Dive into LangChain Memory for Conversational AI

LLMs are stateless by default. To build a conversational agent that actually remembers, you need to manage context effectively. This guide covers implementing various memory types in LangChain, from basic buffers to summary-based retention.

LangChainBuilding Robust RAG Pipelines: A Deep Dive into LangChain Document Loaders

Avnish Yadav – February 22, 2026 · 8 MIN READ

Building Robust RAG Pipelines: A Deep Dive into LangChain Document Loaders

RAG systems live or die by the quality of their data ingestion. This guide covers how to architect a robust document loading pipeline using LangChain to handle PDFs, CSVs, and Web data effectively.

Practical guides for AI, automation, and product engineering.

Essays, tutorials, and systems notes.

Start with the newest deep dive

Architecting Autonomous Agents: A Builder’s Guide to Complex Workflows

Building State: A Deep Dive into LangChain Memory for Conversational AI

Building Robust RAG Pipelines: A Deep Dive into LangChain Document Loaders

Building Your First LLM Chain: A Developer's Guide to Sequential Logic

From Development to Production: A Builder's Guide to Frontend Deployment Strategies

Automating Code Quality: The Modern Stack with ESLint, Prettier, and Husky

Demystifying the Build Pipeline: A Deep Dive into Webpack and Babel Configuration

Mastering React Hooks: From useState to Building a Production-Ready Custom Hook

Getting Started with React: Deconstructing JSX and Component Architecture

Why TypeScript Matters: Adding Type Safety to Your JavaScript Projects

Secure Frontend Auth: The Definitive Guide to JWTs, Cookies, and Storage Strategies

Mastering the Metal: Essential Web APIs & Browser Internals for Frontend Engineers

Mastering Asynchronous Operations with JavaScript Promises: A Builder's Guide

From Selectors to BEM: CSS Concepts You Must Know for Professional Projects

Stop Overthinking Vector Databases: A Builder’s Decision Framework

Building Your First RAG Pipeline: A Developer’s Guide to Context-Aware AI

The Engineer’s Guide to Debugging AI Agents: From Hallucinations to Reliable Systems

Building an AI Inbox Triage Agent with n8n and OpenAI

From Chatbot to Agent: The Engineer's Guide to LLM Memory Systems

Building a Deep Research Agent: An End-to-End Walkthrough

Build Your First Autonomous AI Agent in 10 Minutes with n8n (Prompt Pack Included)

Engineering a Personal Prompt System: Library, Versioning, and Automated Tests

Create Your First AI Planning Agent in 10 Minutes (n8n Tutorial)