Open Source · Free Forever · Updated Feb 2026

Build better
AI Agents

A practical, code-first guide to AI agents, agentic workflows, MCP, and the tools powering the next era of AI.

Everything you need to build with AI agents

Concept explanations, step-by-step tutorials, and working code — for every topic.

Concepts, architecture, tokens, context, and how agents actually think.

Multi-step pipelines, multi-agent systems, and reliability at scale.

Model Context Protocol — the universal connector for AI tools.

LangChain, CrewAI, AutoGen — honest comparison with working examples.

How agents use tools, store memory, and persist skills across sessions.

Prompting strategies specifically designed for agent systems.

CLAUDE.md, AgentMD patterns, and writing great system prompts.

Working, runnable code for every concept. Copy-paste ready.