Product and engineering at @stripe
Los Angeles, CA
Joined March 2009
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Trevor O'Brien retweeted
I was going to wait a few days before publishing this, but alas.
Jaylen Brown means so much more to the city of Boston than most will realize, and I had a front-row seat to it for the past 3 years:
celticsblog.com/boston-celti…
Trevor O'Brien retweeted
It's weird that trading Brown to an arch-rival for a ricketty-legged Paul George and two picks was the very best that the Celtics can do, but it's much, much, much more unusual that Celtics looked at that deal and went "this we GOTTA do." Brown is under contract thru the next presidential administration. You can literally do nothing! The entire franchise would be better served if the front office stopped going to work this week.
Giving @Copilot permission to create and edit in @msexcel was the first step.
Skills take it to another level: reusable best practices and preferences that help Copilot build, revise, and reason the way your team works.
I use Copilot Cowork multiple times per day. It’s legit
Copilot Cowork is now generally available!
Over the last few months of preview in Frontier, we’ve seen you use Cowork to help with so many different tasks. We’ve also been listening closely to your feedback and with GA, we’re bringing you more improvements + new features across model choice, extensibility through plugins, browser automation, and cost management controls.
Here’s a quick demo showing the latest updates in action - inspired by some of my own day-to-day tasks. You can also read more in the blog linked below...
Trevor O'Brien retweeted
Today we’re launching Command Line, a new technical blog about how and why we build.
Our first stories go behind the architecture, design decisions, and research shaping the next wave of developer tools.
Stay tuned for more next week at #MicrosoftBuild msft.it/6013vkN8f
Here to help with your distribution and growth numbers, @AravSrinivas ❤️
Congratulations and welcome, @nicbstme!!!
Opus 4.7 — rolling out to Copilot in Excel today!
We'd love feedback from the @msexcel community as you try out this new model from @AnthropicAI
Today we’re expanding model choice in Microsoft 365 Copilot with the addition of Anthropic’s latest model—Claude Opus 4.7—in Copilot Cowork via the Frontier program, Copilot Studio early release cycle environments, and rolling out to Copilot in Excel.
Start exploring: msft.it/6016Qhgsm
These Artemis posters from @Prof_Kalkyl are something special. Channeling a ray of light during a dark time.
it's been super fun to see @Copilot and @msexcel showing up during NFL playoff games.
(not always as fun being surrounded by @Seahawks fans all day at work though!)
youtu.be/Ndj9Jk-tGKo?si=RKPA…
Agent Mode in Excel is available and unlimited for all Copilot Premium customers.
Also available to all M365 Personal and Family customers on a credits based system. Available across the globe in multiple languages, coming soon to the EU and UK.
(Never used Ramp Sheets but I’m sure it’s sick 🤷🏻♂️)
"Look we saw Ramp Sheets, and honestly it was sick, so we reactively pulled this forward on our roadmap. We hope you* enjoy it.
*Agent Mode is generally available... for 365 copilot premium super duper plus customers in select markets within select regions of certain planets that may or may not be within this solar system."
Trevor O'Brien retweeted
Agent Mode is now live in Excel. Huge moment for all of us who are "proficient in Excel"
📈 Today, we're launching Agent Mode in Excel on Windows and Mac. An Excel Copilot that can work with you and make edits in your spreadsheet like an expert collaborator.
We're also introducing a new, multi-model system that supports both GPT models from @OpenAI and Claude models from @AnthropicAI. Wanna try Claude Opus 4.5 natively in @msexcel? We've got you.
Give it a shot and let me know what you think.
You can read more details here: techcommunity.microsoft.com/…
current status: level 6
working on letting Claude Code go nuts with Nano Banana. i'm gonna need to check my credit card before moving up a level
so impressed by @micro1_ai. happy and thankful i could play a small part in getting partnership with @Microsoft going.
also thankful for @adambain making the connection!
as of today (Jan 2026), micro1 has never lost a penny.
7 figure profits in 2025 and historically profitable while maintaining 20%+ MoM growth.
we hire when we absolutely have to and care deeply about capital efficiency across the org.
ultimately we’re very grateful to be able to determine our own destiny as a result.
if this resonates, we’d like to hear from you as we (slowly) expand the team: micro1/careers