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 843 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 522 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)
Ilonush6 @ilonush632518
0 Followers 98 Following
nick bradford @n_s_bradford
2K Followers 2K Following building @cursor_ai | prev co-founder @ellipsis_dev (YC W24)
FaitheEvelina @4a6N0J8VwoGd9f4
15 Followers 643 Following
Yblara @Yblara14491
28 Followers 1K Following
Karianne Herzog @HerzogKari56269
113 Followers 3K Following
Lian Ramsey @Caseousc
350 Followers 947 Following Things as in his value things to the cat in the common conceptions.
Gabriela Moreira @bugarela
905 Followers 906 Following Building Quint at @informalinc | Born and living in Brazil 🇧🇷
chad fowler @chadfowler
319K Followers 5K Following programmer, general partner @blueyard + music at @chadfowlermusic. prev @wunderlist, @microsoft, @rubycentral, @rubyconf @railsconf @rubygems @pragprog
John Berryman @JnBrymn
3K Followers 453 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
45 Followers 964 Following
Surteighsl @SurteighslMiH
15 Followers 633 Following
Shossaws @Shossaws76o6EX
8 Followers 644 Following
Zink Climax @ZinkClimax
143 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
137 Followers 1K Following
Tuan Vu @TuanAhnVu
27 Followers 1K Following
nuanced.dev @nuanced_dev
158 Followers 23 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
292 Followers 3K Following
Petrus Janse van Rens... @PetrusJvR
643 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
414 Followers 3K Following
Heather @carbone15heathe
314 Followers 3K Following
Celeste @cahollenbeck
1K Followers 913 Following Nontraditional computer science PhD candidate at @EdinburghUni 🏴. Former technical & creative writer.
Joanna @joanna_terwilli
308 Followers 3K Following
@[email protected]... @swannysec
2K Followers 682 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 74 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
254 Followers 791 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 789 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 ✨
beka_valentine @ kole... @defnotbeka
3K Followers 2K Following a dyke who hacks on things. she/xey/ey. [email protected]
Erin Havens @erinhavens
512 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
363 Followers 2K Following Software engineering | machine learning | NLP | data | health | life-science
Podkulachnik @rainbowlesions
614 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
280 Followers 467 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
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
16K Followers 585 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 843 Following colouring outside the lines increasingly, see at robrix at types dot pl instead
Zach Holman @holman
44K Followers 491 Following building https://t.co/US0KccPiGL and https://t.co/RC20WgCd5E. investing: https://t.co/Q8xjxtz2Zy. formerly: @github, @gitlab.
Stephen Diehl @smdiehl
55K Followers 3K Following Left this hellsite for BlueSky. https://t.co/jct5Pfs2NT
Scott Chacon @chacon
16K Followers 997 Following CEO of @gitbutler, cofounder of @SCNE_io, previously cofounder of @github.
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
9K 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 522 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
39K 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.
DailyPapers @HuggingPapers
6K Followers 3 Following Tweeting interesting papers submitted at https://t.co/rXX8x0HzXV. Submit your own at https://t.co/QhbJKXBd4Q, and link models/datasets/demos to it!
eric zakariasson @ericzakariasson
41K Followers 457 Following @cursor_ai & tinkering. gone colfing at https://t.co/KFkkR5CJVl
Sigil Wen @0xSigil
23K Followers 5K Following Bringing the world's @extraordinary talent to america | thiel fellow @thielfellowship
Lisa Wehden @lisawehden
19K Followers 117 Following building @plymouthstreet — fast U.S. work visas for technologists | @sequoia scout | @join_ef @oxfordunion immigrant 🇬🇧🇩🇿🇺🇸
nick bradford @n_s_bradford
2K Followers 2K Following building @cursor_ai | prev co-founder @ellipsis_dev (YC W24)
Lere Williams @lerebear
67 Followers 46 Following Reading and listening. Trying to write more. Building planning tools @github.
Figure @Figure_robot
145K Followers 1 Following Figure is an AI Robotics company building the world's first commercially viable autonomous humanoid robot.
SemiAnalysis @SemiAnalysis_
37K Followers 18 Following
jia @jia_seed
16K Followers 4K Following 21 · 23x hackathon win chief exec grammar police @usesorcerer https://t.co/UeDXP98Nbm NO TOKEN -prev. sprint - $48k, 20k user -drop SWE @disney, 160k streams @spotify
Arc Institute @arcinstitute
39K Followers 59 Following A new scientific institution for curiosity-driven biomedical science and technology.
Nozomio @nozomioai
2K Followers 24 Following we help your agents perform 30% better with right context (yc s25) | join discord! https://t.co/zjNZzVQYjO
cat @_catwu
41K Followers 357 Following claude code pm @anthropicai prev: @indexventures, @dagster, @scale_ai
Daytona @daytonaio
5K Followers 115 Following Daytona is a Secure and Elastic Infrastructure for Running AI-Generated Code.
Lilian Weng @lilianweng
166K 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
15K 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
49K Followers 703 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
32K Followers 459 Following Open source LLM fine-tuning & RL! 🦥 https://t.co/2kXqhhvLsb
Mehdi Hasan @mehdirhasan
1.8M 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
26K Followers 370 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 750 Following founding head of operations at thinking machines @thinkymachines. former head of special projects @openai, obama @whitehouse national security budget director
DSPy @DSPyOSS
11K Followers 50 Following An open-source declarative framework for building modular AI software. Programming—not prompting—LLMs via higher-level abstractions & optimizers.
Kimi.ai @Kimi_Moonshot
53K Followers 100 Following Built by Moonshot AI to empower everyone to be superhuman.
Yulun Du @Yulun_Du
2K Followers 757 Following Scaling @Kimi_Moonshot prev @LTIatCMU Opinions are my own.
Symflower @symflower
310 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
64K Followers 3K Following Scientist at Tufts University; my lab studies anatomical and behavioral decision-making at multiple scales of biological, artificial, and hybrid systems.