How to Use Codex in VS Code Like a Pro

Learn how to use Codex inside VS Code to understand your codebase, make real code changes, review diffs, reference files with @file, connect external tools, and use Skills to improve your development workflow. Timestamps: 00:00 - Install and open Codex extension 01:15 - Codex Sign-in 02:00 - Ask Codex questions about your codebase 04:31 - Let Codex make a real code change 09:19 - Review the diff before committing changes 10:16 - Use @file references 10:54 - Connecting Codex to external tools 11:48 - Skills in Codex 12:58 - The End