Tool

Something Claude can use to act: reading a file (Read), editing it (Edit), running a command (Bash).

You’ll also find it as: tools

How it appears in the course

It’s not a tool you hold in your hand. It’s someone who does the job, with your approval.
Introduction · Module 00, Installation and first steps · free
Below are the actual rules. An endpoint is an “address” the program answers at. Zod is a tool that checks the data received.
How do you split the rules by topic? The .claude/rules/ folder · Module 02, CLAUDE.md: your project’s memory
The code style that the linter (the automatic style-checking tool) doesn’t catch.
What goes in CLAUDE.md, and what stays out? · Module 02, CLAUDE.md: your project’s memory

Learn Claude Code from zero, in plain English

12 modules with 1–2 minute lessons, which you can also do on your phone. The first two modules are free.

Start with the first lessonAll terms