"The interesting consequence is that the hard part of engineering moved from writing code to deciding whether to trust it, which makes review the most leveraged skill in software right now." More in today's #Radar article by @addyosmani.bsky.social: bit.ly/4oTO571

"Loop engineering is replacing yourself as the person who prompts the agent...However, it’s still early; I’m skeptical, and you absolutely have to be careful about token costs." Check out new #Radar article by @addyosmani.bsky.social to learn more: bit.ly/4oFwiAe

"Long-running agents are what comes next... This post is my attempt to lay out what’s changed, who’s pushing on it, and how an engineer can use long-running agents today without writing the whole thing from scratch." Check out #Radar article by @addyosmani.bsky.social to learn more: bit.ly/4oo0UGA

"We’ve spent the last two years arguing about models. Which one is smartest, which one writes the cleanest React, which one hallucinates less. That conversation is fine as far as it goes, but it’s missing the other half of the system." New #Radar article by @addyosmani.bsky.social: bit.ly/43fulk0

A great article by @addyosmani.bsky.social addyosmani.com/blog/cogniti... Offload; don't surrender. "Cognitive offloading is delegating to the AI and still owning the answer. Cognitive surrender is when the AI’s output quietly becomes your output and there is nothing you feel is left to check."

Caught the great @addyosmani.bsky.social this morning. He along a few others, was featured on a story about Vibe Coding by @bloomberg.com and he had sage statements of course. This man is a legend. You can watch the whole piece : 🎥 youtu.be/xYU7zaaRjmE?...

Cat Wu joined @addyosmani.bsky.social at AI Codecon for a fireside chat on the future of agentic coding and agentic code review, how Anthropic actually uses the tools they’re building, and what skills matter now for developers. Key takeaways on #Radar by @timoreilly.bsky.social: bit.ly/4uqWwID

A worthy article on long running agents by @addyosmani.bsky.social - Elucidates the architecture and issues involved: addyosmani.com/blog/long-ru... #longhorizontask #ai #agenticai #agent #agentharness

Well-written and immediately effective - and he's got guides to put it into Cursor, Claude Code etc. github.com/addyosmani/a... #ai #agents #coding #cursorai #claudecode Thank you @addyosmani.bsky.social!

"The real problem wasn’t messy code. It was that no one on the team could explain why design decisions had been made or how different parts of the system were supposed to work together. The theory of the system had evaporated." New #Radar article by @addyosmani.bsky.social: bit.ly/41tTNSh

@addyosmani.bsky.social's multi agent experience agrees with my own, going from 2 to 5 parallel agents is a quick way to transform from a judge to a ticket usher.

Old loop open files ➡️ edit ➡️ build ➡️ debug New loop specify intent ➡️ delegate ➡️ observe ➡️ review diffs

Software is evolving fast. My focus hasn’t changed: helping teams improve performance, UX, and conversion AI generates working code faster than ever… but not optimized for performance That’s where we add value: from “it works” to “it’s excellent” Reading @addyosmani.bsky.social’s new book

Started reading a new book on web performance and ai by @addyosmani.bsky.social

"The levels of AI adoption" - Orchestration requires a different skillset. I spoke about orchestrating coding agents at O'Reilly AI CodeCon this week - here's the full free write-up + slides on what makes multi-agent coding works: addyosmani.com/blog/code-ag... Illustration by Steve Yeggae

The factory is a really good mental model to understand the direction of software engineering right now. I am pretty excited about it. Good article by @addyosmani.bsky.social addyosmani.com/blog/factory...

I finally got around to read this, and oh boy. This is beautifully explained 😍. Thank you @addyosmani.bsky.social 🙏 addyo.substack.com/p/how-modern...

How Agent orchestration is replacing the editor as the center of developer work - @addyosmani.bsky.social addyo.substack.com/p/death-of-t...

Death of the IDE? How Agent orchestration may be replacing the editor as the center of developer work. open.substack.com/pub/addyo/p/... ✍️ my latest write-up

We talk about the speed AI coding tools give us. We don't talk enough about the hidden cost: Comprehension Debt. addyosmani.com/blog/compreh... ✍ I cover my thoughts on this in a new write-up.

Cohosted by @timoreilly.bsky.social and @addyosmani.bsky.social, AI Codecon on March 26 is focused on exploring what it takes to build excellent software in the age of AI that creates value for all participants. Register to save your free spot: bit.ly/4bDKyEH

Announcing Gemini 3.1 Pro! Google's smarter model for your most complex tasks just shipped 🚀 A few web demos:

AI users are working longer because, for the first time, our tools can finally keep pace with our imagination. When output is cheap, your greatest leverage isn't how much you build, but the taste to know what is worth building - and the rest required to see the difference.

The next two years of Software Engineering - addyosmani.com/blog/next-tw... ✍🏻

AI writes code faster. Your job is still to prove it works. - addyosmani.com/blog/code-re...

Liked this observation from Addy Osmani: “Abstractions don’t remove complexity. They move it to the day you’re on call.” addyosmani.com/blog/21-less...

My LLM coding workflow going into 2026: open.substack.com/pub/addyo/p/...

Excited to share my new YouTube series on Software Engineering Effectiveness! www.youtube.com/watch?v=lqcK...

"Critical thinking in the age of AI": addyo.substack.com/p/critical-t... ~ my latest write-up on the importance of retaining critical thinking skills during these times ✍️

Why does "vibe coding" usually not lead to anything productive? A great person to answer is @addyosmani.bsky.social: working on Chrome for 10+ years, and is the author of the book Beyond Vibe Coding. Watch or listen: • YouTube: youtu.be/dHIppEqwi0g • Spotify: open.spotify.com/episode/12dW...

I dug into progressive image rendering and found a bunch of common assumptions aren't quite true. ➡️ JPEG & WebP progressive-renders worse in Safari ➡️ AVIF _does_ support progressive ➡️ But JPEG XL in Safari doesn't ➡️ JPEG XL decodes much slower than AVIF ⬇️ and more jakearchibald.com/2025/present...

View Transitions are now in all browsers! They also landed in React! developer.chrome.com/blog/view-tr...

This history of Core Web Vitals by @addyosmani.bsky.social is a great read. addyosmani.com/blog/core-we...

Announcing Chrome DevTools MCP! 🚀 Connect your AI coding agent to Chrome's powerful automation & debugging capabilities with ease. Learn more: developer.chrome.com/blog/chrome-...

This great piece by @addyosmani.bsky.social resonates strongly with my recent experience using AI coding agents

✍️ How modern browsers work addyo.substack.com/p/how-modern... - my write-up on browser internals for web developers

Thank you @addyosmani.bsky.social for being the one to call out the distinction between vibe coding and AI assisted engineering. What a good read: open.substack.com/pub/addyo/p/...

I spotted that @addyosmani.bsky.social's book on Vibe Coding is now re-titled to "Beyond Vibe Coding" - I think the new title is a huge improvement, really excited to read it when it comes out on 24th September simonwillison.net/2025/Sep/4/b...

For a some backgrounds on development of Google Chrome, see this excellent post by @addyosmani.bsky.social : addyosmani.com/blog/chrome-...

Patterns.dev — A free, 435+ page book and site on design, rendering, and performance patterns for modern web apps (vanilla JS and frameworks like React), by @lydiahallie.com and @addyosmani.bsky.social .

New in Chrome DevTools: Instantly check CSS feature compatibility with Baseline! Chrome DevTools now displays the Baseline status for CSS properties right in the Elements panel - Baseline gives you clear info about which web features are ready to use today.

What would you like me to talk about more on here? 🛠️ Chrome DevTools and tooling 🕸️ Web Platform and new APIs 🤖 AI and AI-assisted Engineering ⛰️ Leadership and teams ...or all the above 😂 Let me know and I'll keep it in mind.

New in ChromeDevTools: Debug complex CSS values more easily! 🎉 The Elements > Styles tab now shows a tooltip on hover with: 1. A step-by-step evaluation of complex CSS calculations to trace values back to their origin! 2. The full definition chain of CSS variables!

New in Chrome DevTools: Gemini can modify and save CSS changes directly to your source! ✨ Modify and fix CSS within the Elements panel. 🧪 Instantly test changes live. 💾 Save changes back to your source files with a connected workspace folder. Learn more: developer.chrome.com/blog/new-in-...

Just published: "The Prompt Engineering Playbook for Programmers" My latest free write-up: addyo.substack.com/p/the-prompt... ✍️

Vibe Coding is not an excuse for low-quality work - my latest write-up: addyo.substack.com/p/vibe-codin... ✍️

Advanced React: Production case studies from ambitious web projects: largeapps.dev/case-studies... - our latest write-up!

What are AI Agents? why do they matter? ✍️ My latest write-up: addyo.substack.com/p/what-are-a...

CSS Weekly #609 💙 UIs for humans 💬 Nackgrounds that follows inline text 🏁 Styling counters 🔢 Style Legend Featuring @wattenberger.com, @anatudor.bsky.social, @monknow.bsky.social, @adactio.com, @stefanjudis.com, @kevinpowell.co, @addyosmani.bsky.social, @twogrey.bsky.social. 🙏 cssw.io/issue-609

Efficiency is doing things right. Effectiveness is doing the right things. ~ @addyosmani.bsky.social in Leading Effective Engineering Teams