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Use Codex to write code on the web with ai agents

Use Codex to write code on the web with ai agents
Use Codex to write code on the web with ai agents

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The Rundown: In this guide, you’ll learn how to use OpenAI’s “Codex” to ship your first change from a GitHub repository without writing code by hand. You’ll connect a repo, set an execution environment, plan a change, have the agent implement it, preview the result, and open a pull request (PR)

Who is this useful for:

  • Non-developers who want to code with agents
  • PMs and founders validating ideas
  • Designers turning mockups into code
  • Developers prototyping faster
Screenshot 2025-11-11 at 6.14.30 PM.png


First of all, what is OpenAI Codex?

Codex is OpenAI's version of an AI agent built specifically for coding tasks. Alternatives include Claude Code,...

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