Sean

head of ux & product design @ @v0
agentic design engineering with the beep boops

[Sean @_Hey_Stu]

@paw_lean 100% accurate and well put by whoever wrote this. I share the sentiment fully.

[Sean @_Hey_Stu]

@sonofalli they’re a mid league field hockey team right?

[Sean @_Hey_Stu]

@simpsoka @anshublog Agreed. As a designer here, I love the idea and al fully here for it. Codex does it all and very well.

[Sean @_Hey_Stu]

perfect summation as to why @OpenAIDevs @OpenAI Codex is not just leading, but also winning. and why it will continue to do so.

[Can Sar @cansar]

A personal update: I’m joining OpenAI to work on Codex, the best agent app in the industry.

After years building consumer products, my obsession since September has been to make Block one of the most AI-native engineering orgs in the world.

I’m proud of what we’ve built: faster Eng velocity with RPI in October, an internal multi-harness ADE in January, Slack-based cloud agents in February, and AI woven into every step of product development. The team is just getting started.

Along the way I tried almost every agent orchestrator out there — 30+ over the past year. Codex felt special from the day it launched. Lately, it’s started to point at something much bigger.

What used to be scattered across prompts, tabs, tools, files, and handoffs is starting to come together in one place. The app is becoming the single surface for knowledge work — letting you accomplish more than you ever thought possible, while staying calm and focused.

You can already see the early signs: making a slideshow and editing it right there, working inside a custom site built just for you and your team, handing off to the browser and the computer while you watch it go.

Getting this right takes powerful models. But it also takes taste, product thinking, and real care for the person on the other end. You see that in the product, and you feel it the moment you talk to the team.

I couldn’t be more excited to join the Codex team. Together we’re going to build the future of computing and knowledge work, and we’re going to build it for you.

[Vincent van der Meulen @vinvan]

of course that's your contention. you're a fresh believer in "the models are good at writing html, so it must be the ultimate format for everything"

you probably read that anthropic blog post "the unreasonable effectiveness of html", and had your mind blown because you've been sleeping under a rock for the last four years.

and now you're feeling all good about yourself because you just convinced your boss that an agent should create your launch video using html — right before a16z tweeted that the next frontier of visual ai is code.

that’s gonna last until next week...

[Sean @_Hey_Stu]

@kylezantos @soleio “luck is what happens when preparation meets opportunity”
- Seneca

[Sean @_Hey_Stu]

reality causes us to hold ourselves back from our true passions. but the sweetness, the nectar of what's inside of us, the pureness has a chance of winning and can prevail over reality. i will be here to congratulate you in the future for the decisions you make today.

[Sean @_Hey_Stu]

are you ready for this. it’s time for the future. it’s time to begin what we have begun. it’s time to fly. 🚀
excited for this ride.

[OpenAI @OpenAI]

It's time to fly.

[Sean @_Hey_Stu]

In case you dont already know, @OpenAIDevs Codex app has a @vercel plugin (flawless btw) which contains an @v0 skill. And it is amazing. Well done and stoked to be using it in Codex. My three faves in one.

[Sean @_Hey_Stu]

@paw_lean have a few things I am working on in Codex that I am rather excited to share with you and all rather soon.

[Sean @_Hey_Stu]

I'll take 20 please

[Sean @_Hey_Stu]

🤜🤛🖤

[Rohan Varma @TheRohanVarma]

Custom domains soon!

You can use the @vercel plugin today to deploy to vercel! @rauchg and team did a great job with it

If you already use Vercel, you can either start from scratch building and deploying to Vercel, or you can ask Codex to turn your Site into a Vercel site and it should be able to figure it out!

[Sean @_Hey_Stu]

🙌🙌

[Andrew Ambrosino @ajambrosino]

a few months ago in an interview, someone asked me where we wanted to take the codex app. i answered with something along the lines of: we intend to make it the best app ever built for desktop, full stop.

it probably felt like a little much, but i meant it. and it feels less potentially hyperbolic now than it did then.

Codex is the best way to build software. it is now the best way to do many other things too. we will lean into both, and much of it will mean we blend a lot with ChatGPT. we will do this only when we can deliver something incredible and better than what the two separate current things can deliver alone.

we will also combine the best parts of cloud and local environments (and yes, windows+linux). and the best of instant responses and long-running objectives, like /goal. we will do so with Taste™

outside of the incredible gpt models, 3 things have made the Codex app what it is:
- an opinionated view of how agents should work with a high quality bar
- a tight and honest dogfooding loop
- you

those 3 things will continue to be P0.
LFG.

[Sean @_Hey_Stu]

This is massive! Yes!!🙌

[OpenAI @OpenAI]

Building apps has never been easier.

With Sites, Codex can turn your work, ideas, and plans into an interactive website or app your team can explore, use, and share with a URL.

Rolling out to Business and Enterprise plans, before expanding more broadly.

[Sean @_Hey_Stu]

@paw_lean @OpenAI well deserved @paw_lean ! So stoked and happy for you and cant wait to see the epicness you bring to the team!

[Thomas Ricouard @Dimillian]

I get a lot of questions about skills and why they’re missing in Codex Mobile. They’re here, but under $ not @ for now. We’re looking into making them more discoverable and unified.

[Kath Korevec @simpsoka]

As always, thanks for the feedback, Theo! Such a blessing to have you as a user.

And guys, this is great advice: talk to the model, get it to talk to you in a way that’ll ensure you’ll read it, and read it. The work shifted from writing the code to writing prompts. LLMs are magical but you still gotta put the work in.

[Sean @_Hey_Stu]

@kylezantos Yaaas! solid listening here

[Sean @_Hey_Stu]

@dkundel Let the Gameboy games begin!