Claude Code 101

Claude Code 101 is a free, short video course from Anthropic on using Claude Code — its command-line coding agent — in real day-to-day development work. It starts at installation and walks through what actually makes an agent different from a chat window: the loop where the model reads your code, runs tools, and edits files while you stay in control through approval and plan modes. From there it builds a repeatable working rhythm — explore the problem, plan the change, write the code, commit it — and shows how to keep the agent on track as your task grows, by managing what sits in its context window and giving it a project memory file it reads every session. The later lessons reach into the parts most developers discover slowly on their own: delegating work to subagents, wiring in outside tools and data, and adding hooks that enforce your own rules. It assumes you can already use a code editor and a terminal; it does not assume you have ever touched an AI coding agent before.