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Get started with Codex, OpenAI’s coding agent, in this step-by-step onboarding walkthrough. You’ll learn how to install Codex, set up the CLI and VS Code extension, configure your workflow, and use Agents.md and prompting patterns to write, review, and reason across a real codebase.
This video covers:
Installing Codex (CLI + IDE)
Setting up a repo and getting your first runs working
Writing a great Agents.md (patterns + best practices)
Configuring Codex for your environment
Prompting patterns for more consistent results
Tips for using Codex in the CLI and IDE
Advanced workflows: headless mode + SDK
Start here
Sign up: https://openai.com/codex/
Codex overview + docs: https://developers.openai.com/codex
Codex Cookbook: https://cookbook.openai.com/topic/codex
Install + setup
VS Code extension: https://marketplace.visualstudio.com/items?itemName=openai.chatgpt
Agents.md standard: https://agents.md
Agents.md repo: https://github.com/agentsmd/agents.md
Prompting + workflows
Prompting guide: https://developers.openai.com/codex/prompting/
Exec plans (Agents.md patterns): https://cookbook.openai.com/articles/codex_exec_plans
Config reference: https://github.com/openai/codex/blob/main/docs/config.md#config-reference
Updates
Changelog: https://developers.openai.com/codex/changelog
Releases: https://github.com/openai/codex/releases Read More OpenAI
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