--- title: Claude Code Essentials | daily.dev description: Learn how to use Claude Code to build real-world agentic coding workflows. Course developed by @ExamProChannel Additional recoruces:... canonical: https://daily.dev/posts/claude-code-essentials-onpjpbco7 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Claude Code Essentials | daily.dev og:description: Learn how to use Claude Code to build real-world agentic coding workflows. Course developed by @ExamProChannel Additional recoruces:... og:url: https://daily.dev/posts/claude-code-essentials-onpjpbco7 og:image: https://api.daily.dev/og/posts/onpJpbco7.png og:image:alt: Claude Code Essentials og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Claude Code Essentials **[freeCodeCamp](https://daily.dev/sources/freecodecamp)** · 740 min read · 1 upvotes · 0 comments ## Summary Learn how to use Claude Code to build real-world agentic coding workflows. Course developed by @ExamProChannel Additional recoruces: https://www.exampro.co/exp-claudecode-01 ⭐️ 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 & Session Data 03:23:14 Settings & Permission Rules (Bash, MCP, WebFetch) 04:04:16 Permission Modes & CLI/GUI Editing 04:16:43 Sandboxing & Dangerous Scenarios 04:55:13 VIM Mode & Model Configuration 05:00:10 Fast Mode & Image Reasoning 05:10:18 Effort Command & Headless Tasks 05:27:46 Escaping Logic & Debug Mode 05:34:21 Dev Containers with Claude Code 05:54:24 Common Workflow Follow Along 06:17:31 Notification Hooks & Security Hooks Surfaces 07:16:55 Claude Code Surfaces: Desktop & Web 07:35:28 Claude Chrome & Browser Extensions 07:45:25 VS Code & JetBrains IDE Integration 07:59:11 GitHub Actions & Remote Control 08:40:48 Computing Follow Along Advanced 08:42:36 Security Review & Output Styles 08:58:05 Simplify Command & Scheduling 09:07:42 Code Review & Agent SDK 09:15:12 Persistent Context: Claude.md & Rules 09:47:03 Claude Auto Memory & Troubleshooting 09:56:27 Agent Skills: Activation, Scripts & Dynamic Content 10:27:06 MCP with Claude Code & GG 10:47:09 MCP Doom & Playwright Integration 11:32:50 Sub-agents & Multi-Agent Teams ## Full article daily.dev links to this article rather than hosting it. 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