---
title: "Claude Code Essentials"
source_url: https://youtu.be/brLhhkUqcn4
captured_at: 2026-03-30
author: "freeCodeCamp.org"
contributor: "ชิดชนก"
platform: youtube
---
# Claude Code Essentials

youtube video by **freeCodeCamp.org**, 740m10s, uploaded 2026-03-23. URL: https://youtu.be/brLhhkUqcn4

## Shared in LINE Note+
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## Description
Learn how to use Claude Code to build real-world agentic coding workflows.

Course developed by @ExamProChannel 

Additional resources: 

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⭐️ Contents ⭐️
Introduction
- 00:00:00 Intro & Meet your Instructor
- 00:01:06 Claude Code Essentials & Guest Instructor
Core Concepts and Foundations
- 00:07:29 Agentic Coding Tools & Comparisons
- 00:14:01 What is a Code Harness & Claude Code?
- 00:16:59 The Agentic Loop: Tool Calls & Models
- 00:24:23 Claude Modes & Additional Resources
- 00:26:43 Subscription, Usage & Auth Errors
- 00:31:34 System Requirements & Doctor CLI
- 00:38:24 Install CLI: PowerShell, CMD, Linux & VSC
- 01:10:45 Interactive Mode & Ctrl+C
- 01:14:05 Auth Tokens, Stats & Usage Limits
- 01:31:04 Sessions: Resume, Fork & Context Commands
- 01:46:18 Compact, Clear, Rename & Rewind
- 01:56:07 Status, Logout & Usage Commands
- 02:04:18 ccusage & API Key Setup
- 02:26:39 Cost Command & Third-Party Providers
- 02:39:09 API Keys: Bedrock, Foundry & Vertex AI
- 03:01:44 btw, Voice & Export Commands
- 03:07:09 Claude Code Projects & Scope
- 03:13:05 Status Line &