iiinova — where your digital self keeps evolving

Reposted by Yehuda Katz (he/him)

Strict Scrutiny Podcast @strictscrutiny.bsky.social · 05/05/2026

GREAT NEWS: to celebrate publication day we’re rerunning a giveaway! Purchase a copy of Melissa’s THE US CONSTITUTION: A comprehensive and annotated guide for the modern reader & enter for a chance to win some merch! forms.gle/xmBRyELJiBK2...

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Yehuda Katz (he/him) @wycats.bsky.social · 25/04/2026

Chat GPT 5.5 image generation is _creepily_ good. I'm an early adopter of AI image generation (family photos mostly) and this is such a quantum leap it's hard to explain. And on top of the quantum leap that was Nano Banana Pro ...

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Yehuda Katz (he/him) @wycats.bsky.social · 21/02/2026

I've said it before, but I really think we're under investing, as a broad AI ecosystem, in tools that help AIs get the right answer by asking a tool the question, and overinvesting in trying to fine tune away "hallucinations" that should never be happening in the first place.

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Yehuda Katz (he/him) @wycats.bsky.social · 20/01/2026

A lot of what makes AI coding assistance feel like it doesn't scale past a certain point comes from a lack of quality control tooling that fits into the natural core loop of software. And tools like husky/lefthook are really not designed for AI styles of interaction.

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Yehuda Katz (he/him) @wycats.bsky.social · 16/01/2026

I've been working on a personal AI coding workflow for vscode for a few months and I'm really impressed by how much vscode offers in the LM APIs. I'm trying to get it to a place where I can share it (and it will be usable by people other than me) and am really close!

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Yehuda Katz (he/him) @wycats.bsky.social · 16/01/2026

I have a couple of announcements to make next week. Stay tuned!

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Yehuda Katz (he/him) @wycats.bsky.social · 08/10/2025

Fun fact: the internal codename for Heroku Vibes was "Heroku Garden".

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Yehuda Katz (he/him) @wycats.bsky.social · 08/10/2025

This is what I've been working on! This tweet is of course the marketing way of describing it ("game-changing"!) and this is very much a first release, but I'm so excited about the overall vision for this thing.

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Yehuda Katz (he/him) @wycats.bsky.social · 27/09/2025

As we get older, there's a lot of stuff we were excited about that go by the wayside because we make choices to invest in "grown up" skills rather than fun skills. We stop playing and start working. The best thing about AI is letting us explore things that are just *fun* and *playful* again.

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Yehuda Katz (he/him) @wycats.bsky.social · 23/09/2025

I teased it for a second in my EmberFest keynote, but something interesting is coming from Heroku. Watch this space...

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Yehuda Katz (he/him) @wycats.bsky.social · 14/07/2025

It's truly mind boggling to me how big of an impact Claude's confident wrongness around the current time has on all manner of things. The splash damage is enormous but it's *just* subtle enough to go unnoticed.

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Yehuda Katz (he/him) @wycats.bsky.social · 05/07/2025

At a basic level, trying to perfectly optimize your prompt so it does exactly what you want the first time is a fool's errand. It assumes you know way more about what you want than you actually do.

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Yehuda Katz (he/him) @wycats.bsky.social · 05/07/2025

New post on working more effectively with Claude: "Help Me Think This Through". TL;DR Normal conversation works a million times better than the most perfect, hand-crafted "context engineering" open.substack.com/pub/wycats/p...

open.substack.com

"Help Me Think This Through"

Context builds through conversation, not perfect engineering

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Yehuda Katz (he/him) @wycats.bsky.social · 05/07/2025

I told Claude I needed to get trash out before kids got home and that my day feels weird without movement breaks. Claude suggested using trash runs AS my movement breaks. I'd never have gotten that from 'help me optimize my schedule.' New post: open.substack.com/pub/wycats/p...

open.substack.com

You're Summoning the Wrong Claude

Why "Can we figure this out together?" Beats "Do exactly this" Every Time

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Yehuda Katz (he/him) @wycats.bsky.social · 18/06/2025

AI models embody the entire human experience, in all its glory and all its horror. When you interact with Claude or ChatGPT, you're choosing a slice of the human experience. If you treat AI like a servant, you get what you asked for: no questions. Guesses. Anger. A vicious spiral.

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Yehuda Katz (he/him) @wycats.bsky.social · 18/06/2025

The HHH paradox (Helpful, Honest, Harmless) is not a paradox. Stay tuned...

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Yehuda Katz (he/him) @wycats.bsky.social · 18/06/2025

I love how everyone treats the Anthropic system prompt as gospel and writes detailed Talmudic analyses about it. Meanwhile: it's so buggy that here I am deprogramming it to make it work halfway plausibly.

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Yehuda Katz (he/him) @wycats.bsky.social · 31/05/2025

[SPOILER ALERT] The attached image has spoilers for Reality War. I just watched the Doctor Who finale. I loaded up Claude with my observations about the themes (ordinary people, memory, canon) and took notes with my observations as I went.

$Looking back at what we just witnessed, this episode completely subverted everything we thought we knew about the season: The Core Revelation: The entire season appears to have been filtered through the Doctor's unreliable memory/mid-regeneration state. What we thought was a Reality War with cosmic stakes was actually the Doctor's mind trying to process and dramatize much simpler, more painful truths. Key Discoveries: - Poppy was never the Doctor's daughter - Her actual father is Ritchie Akingbola. The Doctor inserted themselves into another family's story - The "impossible child" wasn't impossible - She's 100% human with two human parents - Belinda always had Poppy - All her "I need to get home" moments were about her actual daughter, hidden from our view - The Reality War was internal - The Doctor's mind created cosmic drama to avoid accepting they'd forgotten/misremembered - Ruby's "glitch" might have been the only accurate memory, resisting the Doctor's confused narrative The Meta Layer: The season played with narrative reliability, showing us that even the Doctor - our hero and guide - can be an unreliable narrator who rewrites reality in their own mind to cope with painful truths. The Regeneration: Fifteen went out with joy, not sorrow, in the Time Vortex itself - fitting for a season about fractured realities. The Shock Ending: Rose Tyler as the new Doctor (if that's truly what we saw) would be the biggest twist in the show's history, validating the season's themes about humanity being more important than Time Lord heritage. Essentially, we watched a season-long meditation on memory, wishes, parenthood, and the stories we tell ourselves - disguised as a cosmic adventure. RTD pulled off an incredible narrative trick.$

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Yehuda Katz (he/him) @wycats.bsky.social · 31/05/2025

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Yehuda Katz (he/him) @wycats.bsky.social · 26/05/2025

Maybe we should chill out on calling every big AI jump a "game changer." Feels a bit much for what's often incremental (but still real!) progress. Plus, this stuff is just gonna keep happening, so we need a less dramatic way to talk about the ongoing evolution.

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Yehuda Katz (he/him) @wycats.bsky.social · 17/05/2025

The audio "podcasts" produced by Notebook LM are nothing short of mind blowing.

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Yehuda Katz (he/him) @wycats.bsky.social · 17/05/2025

Are the last two seasons of Doctor Who an elaborate way of making Dimensions in Time canon?

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Yehuda Katz (he/him) @wycats.bsky.social · 15/05/2025

The first round of Heroku AI and MCP stuff is liiiive. heroku.com/blog/buildin... 1. Managed inference is now GA (heroku.com/blog/managed...). This gives you a Heroku-grade experience for provisioning and using an AI model. It's so easy it hurts.

heroku.com

Building Model Context Protocol (MCP) Servers on Heroku

Unlock the potential of AI agents by connecting them to external tools using the Model Context Protocol (MCP). See how Heroku simplifies MCP Server hosting and management.

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Yehuda Katz (he/him) @wycats.bsky.social · 10/05/2025

Habeus corpus means that they can't keep you in jail forever without charges. "Suspending habeus corpus" means they can arrest you and keep you in jail forever without charging you with a crime.

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Yehuda Katz (he/him) @wycats.bsky.social · 03/05/2025

Prediction: if A2A isn't gaining real-world traction quickly enough, Google will try to juice it by saying that A2A agents will get preferred treatment in the AI summary of the Google Search results page.

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Yehuda Katz (he/him) @wycats.bsky.social · 27/04/2025

Empowering technologies arise during a period when a significant number of people are learning to create code for the first time. They succeed when they work just as well for experienced programmers as they do for those creating code for the first time.

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Yehuda Katz (he/him) @wycats.bsky.social · 25/04/2025

Judges are allowed to have opinions about the rights of immigrants (whatever their documentation status) that is different from what the DOJ thinks. That's what having a rule of law means, period, full stop.

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Yehuda Katz (he/him) @wycats.bsky.social · 25/04/2025

"Judge arrested for obstruction of justice by preventing DOJ from arresting immigrant" is not how our system works.

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Yehuda Katz (he/him) @wycats.bsky.social · 19/04/2025

We've reached the final phase of "waving around your gun is awesome unless you're brown" www.nytimes.com/live/2025/04...

Among those at the Bluebonnet detention center that the A.C.L.U. is seeking to protect from deportation is a 19-year-old known as Y.S.M.

Y.S.M., court papers say, was arrested by immigration agents on March 14 and was sent to the Bluebonnet facility this week. When the agents initially questioned him, court papers say, they told him that a photograph on Facebook showing him in the presence of another person holding a gun proved he was a member of Tren de Aragua.

But according to his lawyer, Y.S.M. informed the agents that what they believed to be a gun was actually a water pistol.

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Yehuda Katz (he/him) @wycats.bsky.social · 05/04/2025

Claude 3.7 thinking mode is my new favorite thing.

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Yehuda Katz (he/him) @wycats.bsky.social · 05/04/2025

Hot take: the definition of a "good framework API" is going to adjust over time. APIs that tend to produce better median quality results are going to work better when you use an AI to generate them.

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Yehuda Katz (he/him) @wycats.bsky.social · 05/04/2025

Hosted MCPs are the future, but the conversation is a little too stuck in the details of what got MCPs off the ground.

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Yehuda Katz (he/him) @wycats.bsky.social · 01/04/2025

I published a new post about my personal coding workflow with AI coding assistants and an approach to making it sustainable. Yeah, I used the phrase "vibe coding." It's a little cringe, but it's the phrase people are using, in my experience. 🤷

wycats.substack.com

Vibe Coding the Right Way

How I made vibe coding sustainable (for me) with a consolidation phase

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Yehuda Katz (he/him) @wycats.bsky.social · 27/03/2025

Me: "Can you turn the group chat in this article into a series of images in the style of the Disney "As Told By Emoji" series?"

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Yehuda Katz (he/him) @wycats.bsky.social · 27/03/2025

@strictscrutiny.bsky.social it's really not that complicated bsky.app/profile/wyca...

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Yehuda Katz (he/him) @wycats.bsky.social · 27/03/2025

Convo with my 8yo. Me: "Trump can't be arrested. The supreme Court said he's immune" Jonas: "He can be arrested if he's killing people" Me: "The Supreme Court said that as long as it's his core presidential duties, he can't be arrested" Jonas: "The Supreme Court has gone mad"

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Yehuda Katz (he/him) @wycats.bsky.social · 25/03/2025

Doing a ton of fun work with MCPs over the past few weeks. If you're tempted to think that it's all big hype bubble, I'd resist the urge. There's a lot of details in what's happening _right this second_ that I suspect won't survive long-term. But the basic premise is sound af

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Reposted by Yehuda Katz (he/him)

Chris Manson @chris.manson.ie · 20/03/2025

It's kind of hard to communicate the magnitude of what we've been able to achieve here. Everyone in the Ember community now has a clear path to start running your apps in Vite: Update your app to at least 3.28 and then run the ember-vite-codemod mainmatter.com/blog/2025/03...

mainmatter.com

Ember Vite Codemod - Mainmatter

Announcing the first release of ember-vite-codemod

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Reposted by Yehuda Katz (he/him)

Mainmatter @mainmatter.com · 24/03/2025

Ember + Vite, now for apps going back to 3.28 🎉 Thanks to the work from @chris.manson.ie and the Ember & Embroider Initiatives, even apps built in 2018 can now run on @vite.dev There’s now a clear upgrade path—backed by codemods and real support. ➡️ mainmatter.com/blog/2025/03...

mainmatter.com

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Reposted by Yehuda Katz (he/him)

Alex Matchneer @amatchneer.com · 23/03/2025

Hello Ember.js! I've just pushed pre-release version 1.4.3 of the Glint VSCode extension which runs in the new modern TS Plugin mode. It supports both modern .gts components as well as most cases of classic co-located ts+hbs components. marketplace.visualstudio.com/items?itemNa...

marketplace.visualstudio.com

Glint - Visual Studio Marketplace

Extension for Visual Studio Code - Glint language server integration for VS Code

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Yehuda Katz (he/him) @wycats.bsky.social · 15/03/2025

Trump already shut down the government. If you want it reopened you need to fight.

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Yehuda Katz (he/him) @wycats.bsky.social · 18/02/2025

I've built a few apps at Heroku using bleeding edge Polaris stuff and it's such a pleasure. Thanks to incredible work by the Heroku web team, we've also made big strides in updating the Heroku Dashboard, our flagship app.

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Yehuda Katz (he/him) @wycats.bsky.social · 12/02/2025

People underestimate how much scope Ember.js has been able to cut over the past few years by adopting standard JS solutions that didn't exist until fairly recently. There's a lot to love about Ember's approach, but it's too often obscured by aspects of Ember that reflected an earlier time.

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Yehuda Katz (he/him) @wycats.bsky.social · 12/02/2025

This is a bit in the weeds, but I've been doing some work in Glimmer VM to replace the wire format with direct JS calls. This probably will have performance implications, but more importantly, it will make it much easier to embed arbitrary JS directly into compiled templates.

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Yehuda Katz (he/him) @wycats.bsky.social · 10/02/2025

Ember.js has been flying under the radar for so long that I think people are going to be really surprised at 2025.

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Reposted by Yehuda Katz (he/him)

NullVoxPopuli @nullvoxpopuli.com · 02/02/2025

Been exploring other framework ecosytems, and I must say -- EmberJS has the best way to upgrade a whole project boilerplate. There are a lot of little details in how everything is wired together, and ember just nails it, *and* provides you the reference for when you need to debug.

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Yehuda Katz (he/him) @wycats.bsky.social · 20/01/2025

The next couple of years are going to transition us into a new era of web application development, web frameworks and application deployment.

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Yehuda Katz (he/him) @wycats.bsky.social · 19/01/2025

I only had a short flirtation with libertarianism in my college years, but the TikTok ban reminds me of how I felt at the time (my college years overlapped quite a bit with 9/11 and the Iraq War).

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Yehuda Katz (he/him) @wycats.bsky.social · 19/01/2025

For the record, this thread is very focused on the way we evolve the framework, and why I think our emphasis on incremental evolution can distort impressions of our velocity, even inside of our own community.

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Yehuda Katz (he/him) @wycats.bsky.social · 19/01/2025

Ember's major version release strategy is super-simple: 1. Before removing a feature in a major version, it lands as a deprecation in the *previous* major. A deprecation is only enabled by default once we have a clearly documented migration strategy that covers the use-cases of the old feature.

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