itsbrex/ChatGPT-Cookies — reverse-engineered prompt

Build me a simple Chrome extension that helps me grab my own ChatGPT browser values when I’m logged in. When I click the extension icon, it should take me to ChatGPT if I’m not already there, then show a clean popup with buttons to copy the Cloudflare clearance cookie, the ChatGPT session token cookie, the browser user agent, or all of them together. I also want a download button that saves the same values into one env style text file so I can paste them into my local projects.

Keep the UI small and obvious, with light and dark friendly styling, a basic onboarding page that explains how to install and use it, and icons included. The extension should only request access for OpenAI or ChatGPT pages, not the whole browser. Everything should stay local and never be sent to a server. Make it work as a locally loadable Chrome extension and include a short README with setup steps. Look up current Chrome extension docs online if you need to.