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Codex can now use the in-app browser to test your app at different viewport sizes! It will control the device tool bar and click through your app at different breakpoints to validate & iterate. If it's a long run, Codex will take screenshots at key moments during testing and...

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James Sun

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227,660 次观看 • 1 个月前 •via X (Twitter)

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We added a device tool bar to the Codex in-app browser, so it's easier to build and test responsive apps! Now, you can have Codex test your app in different dimensions, so it can fix bugs & improve UI for every device. Just click the 3 dots on the right of the URL bar to use it! As part of this change, we also: - improved the speed of browser use (~30% in my vibe testing) - tightened the animation of the cursor - added a way to hide the composer in full screen mode - fixed a few bugs for browser use in Windows Oliver Tepman and John Nastos cooked on this one! Try it out and let us know what you think!
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We added a device tool bar to the Codex in-app browser, so it's easier to build and test responsive apps! Now, you can have Codex test your app in different dimensions, so it can fix bugs & improve UI for every device. Just click the 3 dots on the right of the URL bar to use it! As part of this change, we also: - improved the speed of browser use (~30% in my vibe testing) - tightened the animation of the cursor - added a way to hide the composer in full screen mode - fixed a few bugs for browser use in Windows Oliver Tepman and John Nastos cooked on this one! Try it out and let us know what you think!

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Today, we launched browser use inside Codex to further close the build & verify loop for local development! Now, you can ask Codex to build your front end, and test it like a user would by clicking through the app. Codex sees everything a user sees through vision & checks the network/console logs to help debug & fix any issues that it finds. This change brings us closer to fully autonomous coding agents that delivers high quality and tested changes. Watch Codex test my app in the browser, catch & fix a real bug, and doing that loop again with a brand new feature.
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Today, we launched browser use inside Codex to further close the build & verify loop for local development! Now, you can ask Codex to build your front end, and test it like a user would by clicking through the app. Codex sees everything a user sees through vision & checks the network/console logs to help debug & fix any issues that it finds. This change brings us closer to fully autonomous coding agents that delivers high quality and tested changes. Watch Codex test my app in the browser, catch & fix a real bug, and doing that loop again with a brand new feature.

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226,203 次观看 • 2 个月前

yesterday, at the Codex hackathon, i ended up solving this problem by building an MCP connector app that turns ChatGPT into Codex, sort of. 1. you get to use GPT-5.5 Pro by exposing your local dev environment to ChatGPT, so you can use 5.5 pro for planning and handover to codex to execute it 2. you get to 2x your rate limits, just like last month, because apparently ChatGPT and Codex have separate rate limits here is the quick demo
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216,134 次观看 • 8 个月前

How to use Open Design inside Codex: Ask Codex to deploy Open Design locally, then tell Codex what you want to build. The real unlock: Codex can operate the design tool for you — choosing workflows, filling briefs, inspecting files, testing interactions, and iterating on the result. Design tools are becoming agent-operated.
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131,151 次观看 • 1 个月前

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82,707 次观看 • 5 个月前

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💡 Friday Codex tip: If you are using the Codex app and regularly find yourself copy and pasting text from error messages or plans from other apps into Codex to start a new task, you can use Raycast deeplinks to map it to a hotkey.

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92,247 次观看 • 3 个月前

Did you know that Visual Studio Code has HAD a built-in browser! Say "start my app in simple browser" and it will run the dev server and open simple browser to localhost. It can take screenshots of the page or element and send DOM elements to the agent chat!
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Did you know that Visual Studio Code has HAD a built-in browser! Say "start my app in simple browser" and it will run the dev server and open simple browser to localhost. It can take screenshots of the page or element and send DOM elements to the agent chat!

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47,489 次观看 • 8 个月前

Codex can now hand off threads between local and remote hosts. Start work on your laptop, send it to a remote box before you close the lid, bring it back later. And yes, Codex can orchestrate the handoff for you.
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Codex can now hand off threads between local and remote hosts. Start work on your laptop, send it to a remote box before you close the lid, bring it back later. And yes, Codex can orchestrate the handoff for you.

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994,136 次观看 • 18 天前

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