rewinfrey @bashrw
I build code intelligence tools for LLMs @nuanced_dev. Previously code intelligence @GitHub. MSc Software Engineering grad student at Oxford. rickwinfrey.com Joined May 2010-
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if you're vibe coding refactors, you need @nuanced_dev. I recorded a demo (link ⬇️) showing a refactor in Claude Code with and without Nuanced MCP. Same refactor, same prompt, run twice. The results: - Nuanced is more accurate on the first go - 35% faster - uses 32% less…
We have done 2 cohorts and ~800 people have meaningfully engaged with the AI evals course. Hamel shared a bunch of testimonials with me yesterday. I was really astounded that they are not just generic testimonials; people mentioned very specific results and concepts. It seems…
Today, we're announcing our first hosted infrastructure product: pyx, a Python-native package registry. We think of pyx as an optimized backend for uv: it’s a package registry, but it also solves problems that go beyond the scope of a traditional "package registry".
Fall semester is starting, and many universities are rolling out AI engineering courses. If you teach an AI engineering course at your university, email me at [email protected] or DM me for a free copy of our 11-chapter, 166-page course reader to share with your…
Today we're launching Nuanced MCP for TypeScript, available to individual developers. 🚀 Developers kept asking for an MCP server they could drop into Claude Code/Cursor--so we built it. It gives AI a compiler-grade call graph for grounded edits and fewer tokens. Links to our…
As market usage of AI tools increases, the diversity of goals and intentions increases. As AI tools begin incorporating a “spectrum of autonomy” into their interaction design, Karpathy’s scenario here hints at another axis of “spectrum of effort”.
As market usage of AI tools increases, the diversity of goals and intentions increases. As AI tools begin incorporating a “spectrum of autonomy” into their interaction design, Karpathy’s scenario here hints at another axis of “spectrum of effort”.
GPT-5: "The model provided an ambiguous search string to replace" Me: dawg the function is right there. This is why we built Nuanced, so your AI can see the actual structure of your code, not just tokens. Call graphs. Symbol maps. Static analysis.
Nuanced provides compiler-grade context for AI coding. We just launched our explainer video: 📽️ youtu.be/674AwhMVoSE
I prompted Claude Code to center a div and it had a meltdown. why? because your LLM is guessing with grep, not reasoning. I wrote about how programming languages are precise, but prompts aren’t. And how we fix that at Nuanced. (link below) 👇
2024: everyone releasing their own Chat 2025: everyone releasing their own Code
Or if your net worth is over $100 million and your effective tax rate is < 25%, you sell some stock to get your effective tax rate to 25%. Why is anyone talking about jail?
Or if your net worth is over $100 million and your effective tax rate is < 25%, you sell some stock to get your effective tax rate to 25%. Why is anyone talking about jail?
I wrote about reviewing code: github.blog/developer-skil…
Cool job alert -- @aymannadeem is hiring founding engineers for her YC company Nuanced. They are working on a deep + hard problem at the center of AI and the future of trust on the internet, if you are passionate about either you should apply. ycombinator.com/companies/nuan…
Boss: Hey AI#12890 your throughput dropped in Q2, what the hell? AI#12890: 3 of my system dependencies required upgrades for security vulnerabilities resulting in a 20% performance degradation in my core operations. Boss: Complain on your own time, get back to work and fix it!
When Hayato Sumino performs his own arrangement of Ryuichi Sakamoto's "Thousand Knives," magic happens! For those with a keen eye, did you spot the Glenn Gould jumper?👀 @880hz

Jason Warner @jasoncwarner
36K Followers 2K Following Now: Co-founder @poolsideai Operating board Bridgewater Associates Then: CTO @github Engineering @heroku @canonical BS CS @penn_state MS CS @rpi
Cory Wilkerson @corywilkerson
2K Followers 1K Following visionary behind 3am release of 3am edition of tswift’s ‘midnights.’ @replicate @retool @github. bay area. via pdx, sf, chicago, and the ozarks.
Rob Rix @rob_rix
4K Followers 851 Following colouring outside the lines increasingly, see at robrix at types dot pl instead
Stephen Diehl @smdiehl
55K Followers 3K Following Left this hellsite for BlueSky. https://t.co/jct5Pfs2NT
Justin Hutchings @jhutchings0
2K Followers 2K Following Senior Director of PM @cloudflare | Formerly @github @microsoft. Mostly tech, security, Star Trek 🖖🏻, with a sprinkle of far left political outrage.
brometh @bromethazine
3K Followers 400 Following on a rusty iron throne, past the furthest star of space
Matt Parsons @mattoflambda
5K Followers 523 Following Haskell and SQL. Team Lead for Backend Developer UX at @mercury. I wrote @prodhaskell so you can get a Haskell job!
Colin Barrett (NEET a... @cbarrett
5K Followers 4K Following Unemployed tech worker. Ex @Apple @Mozilla et al. 🏳️🌈 (any/all)
beka_valentine @ kole... @defnotbeka
3K Followers 2K Following a dyke who hacks on things. she/xey/ey. [email protected]
Yblara @Yblara14491
22 Followers 1K Following
Karianne Herzog @HerzogKari56269
98 Followers 3K Following
Lian Ramsey @Caseousc
344 Followers 1K Following Things as in his value things to the cat in the common conceptions.
Gabriela Moreira @bugarela
897 Followers 904 Following Building Quint at @informalinc | Born and living in Brazil 🇧🇷
chad fowler @chadfowler
320K Followers 5K Following programmer, general partner @blueyard + music at @chadfowlermusic. prev @wunderlist, @microsoft, @rubycentral, @rubyconf @railsconf @rubygems @pragprog
John Berryman @JnBrymn
3K Followers 452 Following AI/LLM consulting @ https://t.co/eHP9wX6uvy Author x2: https://t.co/kLQmgXYBrU, https://t.co/51YodoVZ0F Formerly Eventbrite, GitHub (code search and Copilot)
Amber Lewis @FluffBall1993
36 Followers 922 Following
Surteighsl @SurteighslMiH
16 Followers 636 Following
Shossaws @Shossaws76o6EX
9 Followers 649 Following
Zink Climax @ZinkClimax
142 Followers 2K Following
Ginnie @ginniecary
0 Followers 11 Following
Chris Ledet @chrisledet
330 Followers 677 Following Computer programmer. Hardcore WoW player. TCG Addict.
tim tim @timtim258574689
139 Followers 1K Following
Tuan Vu @TuanAhnVu
24 Followers 1K Following
nuanced.dev @nuanced_dev
152 Followers 16 Following Making AI tools smarter with semantic understanding.
Jonathan Clem @_clem
1K Followers 1K Following Engineer @notionhq. Formerly @magicailabs, @github, @dropbox, @usecanvas, @heroku.
Laurie @laurie_dunnigan
284 Followers 3K Following
Petrus Janse van Rens... @PetrusJvR
648 Followers 2K Following Software engineer based in Cape Town, South Africa 🇿🇦. Organiser of meetups at https://t.co/FuXKTd7SwX.
Francesco Cesarini @FrancescoC
9K Followers 842 Following Founded @ErlangSolutions, started @codemeshIO and @codeBeamIO, O'Reilly author, pointy haired boss, full time dad and part time uncle & godfather.
Janet @p_janet79
264 Followers 3K Following
Heather @carbone15heathe
313 Followers 3K Following
Celeste @cahollenbeck
1K Followers 914 Following Nontraditional computer science PhD candidate at @EdinburghUni 🏴. Former technical & creative writer.
Joanna @joanna_terwilli
307 Followers 3K Following
@[email protected]... @swannysec
2K Followers 681 Following 🌻 Director (Security) @github, Intel Nut, Dad, History Geek, Beer Dork | Opinions my own. | https://t.co/uXHKfdAlt4
a poisoned lunch @poisoned_lunch
61 Followers 75 Following Mama, here comes midnight with the dead moon in its jaws
Ableversity @Ableversity
333 Followers 2K Following Georgia based 501(c)(3) non-profit offering Splunk training at affordable prices.
George Bearden @georgebearden
255 Followers 784 Following Computers and Music... Computer Music! Making music - https://t.co/FrsidVUeAl Building - https://t.co/YKhGtPlXRC Sr. Engineer - Amazon
Faris Masad @masadfrost
2K Followers 780 Following Faris Fawzi Ibrahim Abdulrahim Khalil Abdulrahman Aseed Masoud Saed Saadah Faqeh Masad
Becca (She/Her) 👋�... @HeyBMcCormick
2K Followers 2K Following Philly // Jersey | TA Manager @ Comoto 🏍💨 | Beagle Stan | Pizza Enthusiast 🍕 | Over-Caffeinated & Tastefully Sarcastic | A Forking Good Person ✨
Erin Havens @erinhavens
513 Followers 235 Following Product Manager @GitHub / Computer Science and Art History @mcgillu alum / 🖼🤖🐶🍱🏋️♀️🧘♀️🥖🍁
Developing Leadership... @devleadership_
1K Followers 828 Following ⚡ by @athenian 🚀 The podcast for Engineering Leaders 🎙 Hosted by @eisokant and @jasoncwarner 👉 Chats about Engineering Leadership filled with mental models
jinyaolin @jinyaolin
7K Followers 3K Following Digital Artist / Composer. Prof. of TNNUA. PhD of CS, Master of Fineart. NFT artist and collector.
christopherbare @christopherbare
361 Followers 2K Following Software engineering | machine learning | NLP | data | health | life-science
Podkulachnik @rainbowlesions
615 Followers 5K Following mulch on the front lawn of communicative rationality | 👨🏻💻 electric braining | my legs hurt from chasing ben franklin I need patience
Taylor Holland @TaylorJHolland
283 Followers 468 Following Current: Head of DSE at W&B. Prev: Head of DS Facebook AI, Head of DS & ML at GitHub, ex Heroku.
Luke Francl @lof
2K Followers 575 Following Interests include urbanism, software engineering, biking for transportation, cats. Minnesotan in exile. Work: code search @github. Blog: https://t.co/PPIjJWwDax
Ashley Wolf @Meta_Ashley
2K Followers 1K Following Director, Open Source and AI Programs @GitHub 🫶 Empowering open source developers and raising tiny humans fueled by ☕️ and 💁♀️
Ai4 - Artificial Inte... @Ai4Conferences
10K Followers 6K Following North America's Largest Artificial Intelligence Industry Event 🤖 Join us at Ai4 2025, August 11-13 in Las Vegas.
Jeff Rafter @jeffrafter
4K Followers 215 Following Here for ✨sparkles and 🌈 rainbows and ⛸️ skates. Previously @github; viz. https://t.co/k3Fu9UCJN4
Iheanyi Ekechukwu @kwuchu
23K Followers 3K Following 🇳🇬, computer dude, hip-hop lover. funemployed. prev @planetscale @GitHub @digitalocean @ibmwatson @NotreDame. 1/2 of @TwoBlackNerds. creator @tryseeker
Kath Korevec @simpsoka
15K Followers 586 Following Director of Product at Google Labs. Code AI. Dive in ➡ @googlelabs, @stitchbygoogle, and @julesagent Previously @vercel, @github and @heroku
Jason Warner @jasoncwarner
36K Followers 2K Following Now: Co-founder @poolsideai Operating board Bridgewater Associates Then: CTO @github Engineering @heroku @canonical BS CS @penn_state MS CS @rpi
Cory Wilkerson @corywilkerson
2K Followers 1K Following visionary behind 3am release of 3am edition of tswift’s ‘midnights.’ @replicate @retool @github. bay area. via pdx, sf, chicago, and the ozarks.
Rob Rix @rob_rix
4K Followers 851 Following colouring outside the lines increasingly, see at robrix at types dot pl instead
Zach Holman @holman
44K Followers 491 Following building atm. investing: https://t.co/Q8xjxtyva0. formerly: @github, @gitlab.
Stephen Diehl @smdiehl
55K Followers 3K Following Left this hellsite for BlueSky. https://t.co/jct5Pfs2NT
Scott Chacon @chacon
16K Followers 992 Following CEO of @gitbutler, cofounder of @SCNE_io, previously cofounder of @github. Probably here now: https://t.co/Fvkk95Wgtt
Justin Hutchings @jhutchings0
2K Followers 2K Following Senior Director of PM @cloudflare | Formerly @github @microsoft. Mostly tech, security, Star Trek 🖖🏻, with a sprinkle of far left political outrage.
Max Schoening @mschoening
8K Followers 1K Following playing factorio at @notionhq. big fan of rows, columns, and robots.
brometh @bromethazine
3K Followers 400 Following on a rusty iron throne, past the furthest star of space
Matt Parsons @mattoflambda
5K Followers 523 Following Haskell and SQL. Team Lead for Backend Developer UX at @mercury. I wrote @prodhaskell so you can get a Haskell job!
Shriram Krishnamurthi... @ShriramKMurthi
21K Followers 4K Following @BrownCSDept/@BrownUniversity • @BootstrapWorld • @PyretLang • @racketlang • Unreasonably excited about compsci, education, cycling, cricket, human experience.
Hamel Husain @HamelHusain
38K Followers 2K Following Evals evals evals https://t.co/Zrmp6LRd9c About Me: https://t.co/P6WyeKkyTa
Jason Rudolph @jasonrudolph
1K Followers 127 Following Funemployed 🤿🧘♂️🏝️ Previously: Creator of @BuildPulseApp, Staff Engineer at @GitHub, Partner at @thinkrelevance.
Lere Williams @lerebear
67 Followers 46 Following Reading and listening. Trying to write more. Building planning tools @github.
Figure @Figure_robot
141K Followers 1 Following Figure is an AI Robotics company building the world's first commercially viable autonomous humanoid robot.
SemiAnalysis @SemiAnalysis_
34K Followers 16 Following
jia @jia_seed
15K Followers 3K Following 21 · 23x hackathon win chief exec grammar police @usesorcerer -insta @ jia.seed (71k) -prev. sprint - $48k, 20k user -drop SWE @disney, 160k stream on @spotify
Arc Institute @arcinstitute
37K Followers 57 Following A new scientific institution for curiosity-driven biomedical science and technology.
Nozomio @nozomioai
1K Followers 20 Following heads down building https://t.co/6hz1Zw6tfR (yc s25) backed by @ycombinator, @localglobevc, @BoxGroup, @paulg, @crv, and others.
cat @_catwu
39K Followers 354 Following claude code pm @anthropicai prev: @indexventures, @dagster, @scale_ai
Daytona @daytonaio
4K Followers 113 Following Daytona is a Secure and Elastic Infrastructure for Running AI-Generated Code.
Lilian Weng @lilianweng
163K Followers 166 Following Co-founder of Thinking Machines Lab @thinkymachines; Ex-VP, AI Safety & robotics, applied research @OpenAI; Author of Lil'Log
Charles 🎉 Frye @charles_irl
14K Followers 3K Following gpu enjoyer at @modal. he/him. ex @full_stack_dl, @weights_biases (acq. @CoreWeave), phd Berkeley @Redwood_Neuro. try https://t.co/SYWVMCazZ3
Diana is broccolini @broccolini
13K Followers 2K Following Head of Design at @GitHub · Likes cats, bubbles, and potatoes · Funny accent 🇬🇧🇦🇺🇺🇸 · on bsky & 🥨 as broccolini
Shreya Shankar @sh_reya
48K Followers 690 Following on the CS faculty job market | PhD @Berkeley_EECS, building https://t.co/PmuOqAYt6q | teaching https://t.co/CTWJ6z0JEg | formerly ML eng & undergrad @Stanford
Unsloth AI @UnslothAI
31K Followers 458 Following Open source LLM fine-tuning & RL! 🦥 https://t.co/2kXqhhvLsb
Mehdi Hasan @mehdirhasan
1.7M Followers 5K Following British-American journalist. Editor-in-chief and CEO of new media company @zeteo_news. Subscribe here: https://t.co/sEC1ETyGtn
VibeTunnel @VibeTunnel
2K Followers 48 Following Turn any browser into your terminal & command your agents on the go. For macOS and Linux. Join our Discord: https://t.co/rAXKyfNnFz
Psyho @FakePsyho
25K Followers 366 Following Game Designer; Problem Solver; past: OpenAI (Dota), Pro Competitive Programmer, Poker
Kiro @kirodotdev
12K Followers 1 Following Go from concept to production and beyond. Kiro is an AI IDE that works alongside you to turn ideas into production code with spec-driven development.
Andy Jassy @ajassy
191K Followers 286 Following Lead Amazon, married and father of two kids, big sports/music/film fan, experienced buffalo wings eater. Go Kraken!
Jonathan Lachman @jonlachman
4K Followers 739 Following founding head of operations at thinking machines @thinkymachines. former head of special projects @openai, obama @whitehouse national security budget director
DSPy @DSPyOSS
10K Followers 48 Following An open-source declarative framework for building modular AI software. Programming—not prompting—LLMs via higher-level abstractions & optimizers.
Kimi.ai @Kimi_Moonshot
50K Followers 98 Following Built by Moonshot AI to empower everyone to be superhuman.
Yulun Du @Yulun_Du
2K Followers 754 Following Scaling @Kimi_Moonshot prev @LTIatCMU Opinions are my own.
Symflower @symflower
312 Followers 123 Following Your virtual coding assistant who spots errors and unexpected behavior, does routine tasks for you and generates unit tests with meaningful values in real time.
Michael Levin @drmichaellevin
63K Followers 3K Following Scientist at Tufts University; my lab studies anatomical and behavioral decision-making at multiple scales of biological, artificial, and hybrid systems.
baz @baz_scm
889 Followers 956 Following Reduce code friction, resolve conflicts fast. Baz makes dev teams unbreakable with AI-powered code review and GitHub integration. Try for free → https://t.co/zTYWVMiDzg
TBPN @tbpn
102K Followers 921 Following Technology's daily show. Hosted by @johncoogan and @jordihays. Streaming live 11AM-2PM PT every weekday and available on Apple, Spotify, and YouTube.
Siqi Chen @blader
112K Followers 4K Following 🏗️ Love to build stuff (@runwayco, @sandboxvr, @postmates, @zynga) people love. 💸 Investor @amplitude_hq, @mercury, @owner, @elevenlabsio, @meetgamma ++
Soham Parekh @realsohamparekh
34K Followers 222 Following Everyone's favorite Founding engineer. Executing @onlyfunctions. Founding Engineer @darwin_studios
Arlan @arlanrakh
8K Followers 1K Following founder @nozomioai (YC S25) | hs junior dropout | forbes 30u30 | prev. stanford research at 16 | anime, cooking, running — e/acc
Context7 @Context7AI
3K Followers 7 Following Up-to-date documentation for LLMs and AI code editors. A project by @upstash team
Jerry Cheung @whatcodecraves
3 Followers 8 Following Father, ex-GitHub, Coupa. FI, Casio, and cast iron geek. Launching my first product at https://t.co/1DH4Syr6Kx