Agents

Loop engineering replaces one-off prompts with self-running systems that find work, execute it, verify results, and repeat — the defining pattern for AI-assisted development in 2026.

Prompt engineering got you started. Context engineering is what separates agents that ship from agents that hallucinate — structuring the information, constraints, and history models need to do real work.

A hands-on walkthrough of building a tool-using AI agent in Node.js — from LLM integration and function calling to multi-step reasoning loops.