Codex The Practical Guide

Codex – The Practical Guide
Published 2/2026
MP4 | Video: h264, 1920×1080 | Audio: AAC, 44.1 KHz, 2 Ch

What you’ll learn
✓ Use Codex efficiently to write code & build programs with AI
✓ Build programs with AI efficiently by leveraging basic & advanced Codex features
✓ Understand and use skills & context engineering
✓ Plan and build projects with Codex & spec-driven development
✓ Process tasks locally or in the cloud
✓ Extend capabilities with MCPs
✓ Fork sessions & leverage worktrees
✓ Get better at agentic engineering using Codex

Requirements
● Basic programming experience is required
● You will need a Codex subscription to efficiently use it

Description
Codex is growing rapidly – and many developers consider it the best or amongst the best agentic engineering tools you can use these days! But unfortunately, many developers are also not using Codex very efficiently though.

If you’ve ever felt like you’re “using” Codex without really mastering it, this course is for you.

Codex – The Practical Guide is a hands-on, no-nonsense course designed to help you unlock Codex’ full potential. You’ll learn how to work with Codex efficiently, understand how it thinks, and confidently use the features that separate casual users from power users.
You don’t need any special setup or prior experience beyond a Codex installation and subscription. By the end of the course, you’ll go from Codex novice to confident, advanced user – able to dramatically boost your productivity and build better software faster.

In this course, you’ll

• Learn the fundamentals of working with Codex the right way

• Understand core commands and context engineering essentials

• Master advanced, high-impact features like different input modes, agent skills, MCPs, and more

• Make use of "Plan Mode" and manage configuration & permissions

• Learn the WHAT, WHY, and HOW behind each concept – no black boxes

• Use Codex in the CLI, IDE, native desktop app, and in the web (cloud)

• Build a complete, real-world example project using Codex to see everything in action
Who this course is for
■ Beginner and experienced developers who want to efficiently use Codex