A comprehensive, production-grade tutorial for mastering Claude Code in backend development with TypeScript + Express + GraphQL. Based on real-world best practices. Table of Contents Models are good enough now If your output is garbage, your input was garbage. Invest in planning. Introduction Claude Code is Anthropic’s agentic coding tool that lives in your terminal. Unlike traditional chatbots, Claude Code can read files, execute commands, make changes, and work autonomously on problems. This tutorial focuses on maximizing your effectiveness as a backend developer building production systems. Target Audience: Senior backend developers familiar with: Key Insight: Models have become extraordinarily capable. If you’re producing «AI garbage,» it’s because your inputs were…