Ultimate Claude Code Tutorial: How to Use Claude Code for Beginners in 2026

Ultimate Claude Code Tutorial: How to Use Claude Code for Beginners in 2026

Claude Code has been completely overhauled — it's now a user-friendly desktop app for Mac and Windows that works without a terminal or complex installations. Working with it is like hiring two specialists: a thoughtful architect (the Opus 5.5 model) who plans the logic flawlessly, and a fast programmer (Sonnet 5) who quickly and cheaply writes the actual code. [...] [13:28] every project. So far we've worked in small steps. You ask, you review the diff, you approve, you ask again. That's [13:35] the right rhythm while you learn. But on anything that touches more than two or three files, Claude can start writing and realize halfway through that it needs to restructure what it just built. [13:44] Plan mode prevents that. When it's on, Claude reads the project and writes a plan without changing any files. You [...] 08:28 — Running commands and installing packages (Auto mode setup) 09:42 — The simple rule for fixing any code errors 10:21 — Project 4: Subscription tracker in a single HTML file (working with constraints) 12:26 — The claude.md file: giving AI permanent memory and project rules 13:44 — Plan mode and creating the right brief for multi-step tasks 14:57 — New Projects feature: parallel development in the cloud 15:23 — Real limitations: what Claude Code isn't ready for yet