Your first Claude Code task,
with a review path.

Claude Code can read files, edit them, and run commands inside a project. Start by opening a small practice folder and asking it to explain before it changes anything.

Created by NANASHI with CodexOfficial docs checked: 2026-08-02About this site →

01 / UNDERSTAND

It can act, not only answer

Claude Code can locate files, edit several files, and run commands or tests. The first goal is not total automation. It is completing one small change while understanding the diff.

02 / INSTALL

Use an official installer

The official quickstart lists native installers and WinGet for Windows. One Windows option is:

winget install Anthropic.ClaudeCode

Run claude afterward and complete sign-in in the browser. Check Anthropic's current account requirements before starting.

03 / PROJECT

Start inside a practice folder

cd C:\path\to\your\practice-project
claude

Do not launch your first session in a home folder containing unrelated files or secrets. A small boundary makes every change easier to inspect.

04 / READ FIRST

Ask for an explanation first

Do not change anything yet. Read this project and explain:
1. what it does
2. the role of the main folders
3. how to run and test it
4. anything that is still unclear

Compare the explanation with the actual files before allowing edits.

05 / SMALL CHANGE

One file, one purpose

Try a README clarification or a small visible copy change. Name the target file, state what must stay unchanged, and ask to see the diff afterward.

06 / VERIFY

Completion is not evidence

Review every changed file.
Read the test command and its output.
Run the production build when relevant.
Mark anything you did not verify as unverified.

07 / PERMISSIONS

Ask what a command will change

Pause before deletion, publishing, external data transfer, payment, or permission changes. Do not place API keys or personal data in the work folder. Use deny and ask rules for boundaries that must not depend on a prompt.

Take the beginner quiz →Run the safety check →

Official sources checked

Claude Code quickstartInstallation, sign-in, project startup, first question, and first edit.
Configure permissionsAllow, ask, deny, and permission modes.
Claude Code securityWorking boundaries, permissions, sandboxing, and human review.

This quickstart is not a security audit and cannot guarantee the safety of your machine, code, or secrets.

FAQ

Beginner questions

How is Claude Code different from Claude chat?

Claude Code is an agent that can inspect project files, edit them, and run commands and tests, rather than only returning a conversational answer.

Can a programming beginner use Claude Code?

Yes, but you still need to review proposed commands, file changes, and test results. Start with explanation and one small reversible edit.

Should I bypass all permission prompts?

Not on a normal beginner machine. Anthropic recommends bypassPermissions only in isolated environments such as containers or virtual machines.