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Jo Van Eyck

@jovaneyck.bsky.social
237 followers 198 following 83 posts

I help software orgs get things done without shooting themselves in the foot. Technical coach, software crafter, legacy code wrestler. Also, boardgames 🎲

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Jo Van Eyck @jovaneyck.bsky.social · 27/09/2026
Agentic Engineering Weekly for September 18-27, 2026 agentic-engineering-weekly.jovaneyck.be/agentic-engi... #gpt6 #opus55 #softwarefactory #pstack #grokbot #jev
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for September 18-27, 2026
The question moved this week. Nobody serious is still asking whether agents can write the code: the people shipping the most are asking who verifies it, how cheaply, and how to move humans on top of t...
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Jo Van Eyck @jovaneyck.bsky.social · 19/09/2026
agentic-engineering-weekly.jovaneyck.be/agentic-engi... #jev #pacingthefrontier #softwarefactory #agenticengineering
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for September 12-19, 2026
A stealth lab refreshes interest in narrow AI. Agentic coding keeps stressing CI platform infrastructure. The shape of the software factory is converging. Fundamentals matter more than ever. Pacing th...
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Martin Fowler @martinfowler.com · 08/09/2026
Fragments: dealing with AI's counterfeit utility, exasperated readers of LLMs, missing Creating Passionate Users, agents lack Verum Factum, three people making key decisions on AI martinfowler.com/fragments/20...
martinfowler.com
Fragments: September 8
dealing with AI's counterfeit utility, exasperated readers of LLMs, missing Creating Passionate Users, agents lack Verum Factum, three people making key decisions on AI
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Jo Van Eyck @jovaneyck.bsky.social · 05/09/2026
Agentic Engineering Weekly for August 29 to September 5, 2026 agentic-engineering-weekly.jovaneyck.be/agentic-engi... #agenticengineering
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for August 29 to September 5, 2026
Multiple model launches took the headlines, none will change how you work on Monday. What might: an engineer shipping 2,000 PRs a month explained their actual method, AWS published what happens when f...
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Jo Van Eyck @jovaneyck.bsky.social · 22/08/2026
Agentic Engineering Weekly for August 15–22, 2026 agentic-engineering-weekly.jovaneyck.be/agentic-engi... #agenticengineering #openrouter #softwarefactory
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for August 15–22, 2026
This week: code review collapsed, a linter that only flags problems turns out to be half a tool, and every repo is a software factory now. Cheap code made architecture visible rather than optional, to...
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Jo Van Eyck @jovaneyck.bsky.social · 15/08/2026
Agentic Engineering Weekly for August 8–15, 2026 agentic-engineering-weekly.jovaneyck.be/agentic-engi... #agenticengineering
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for August 8–15, 2026
Anthropic shipped an invisible watermark into every Claude model launched after August 2, but how effective is it really? The AI productivity gain has a half-life, and the slop it leaves behind does n...
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Timnit Gebru @timnitgebru.blacksky.app · 13/08/2026
🔇 🔇 🔇 My book, Deep Unlearning, is now available for preorders! I don't know how people write so many books because this one took a lot out of me. It turns out, I had a lot to say 😂, with editors cutting out 50k of my words 🫣 ✴️ You can now preorder it at www.simonandschuster.com/books/Deep-U....
Cover of my new book, Deep Unlearning: The Rise of AI and The Radicalization of a Tech Idealist. 

There are two concentric circles in the book, the left being circuits in black an white, and the right being a bunch of dots with orange accents. The cover background is cream. And the words are written in black except for "Un" which is in orange.
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Jo Van Eyck @jovaneyck.bsky.social · 09/08/2026
youtu.be/PHMT2PP7gls What happened last week with OpenAI & Hugging Face? Did AI really "escape the lab"? In this week's video we go over all the details, but we'll keep it super understandable so even my mom can follow along!
youtu.be
The OpenAI x Hugging Face incident explained: "oops we accidentally created an AI hacker swarm"
YouTube video by Jo Van Eyck
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Jo Van Eyck @jovaneyck.bsky.social · 08/08/2026
Agentic Engineering Weekly for August 1-8, 2026 Will CI/CD survive agents? OpenAI's model cracked ten long-open mathematical problems. Delete a year worth of carefully maintained context and watched your evals improve. agentic-engineering-weekly.jovaneyck.be/agentic-engi... #agenticengineering
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for August 1-8, 2026
Will CI/CD survive agents? Steve Yegge and Jez Humble seem to disagree. OpenAI's model cracked ten long-open mathematical problems, a mathematician explained precisely what it still cannot do. Datadog...
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Jo Van Eyck @jovaneyck.bsky.social · 02/08/2026
Prompt engineering, context engineering, harness engineering, loop engineering, graph engineering, dark factories, ... 🤯 Let's do a speedrun through all these concepts and look at what actually is worth diving into as a swe. youtu.be/j_r93YulrUE #agenticengineering
youtu.be
The state of agentic engineering mid-2026
YouTube video by Jo Van Eyck
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Jo Van Eyck @jovaneyck.bsky.social · 11/07/2026
Agentic Engineering Weekly for July 3–11, 2026 agentic-engineering-weekly.jovaneyck.be/agentic-engi... #agenticengineering #darkfactory #jevonsparadox #jspace
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for July 3–11, 2026
This week we got our write-up of the Bun rewrite for $165k in tokens, Seldo published the numbers on what AI did to the junior market, and Hank Green explained why efficiency gains will make our AI bi...
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Martin Fowler @martinfowler.com · 06/07/2026
Fragments: Second future of software development retreat, ethics of working with AI, censorship via DMCA, reacting to the high cost of tokens, a radical document in 1776 martinfowler.com/fragments/20...
martinfowler.com
Fragments: July 6
fragments 06 Jul 2026
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Jo Van Eyck @jovaneyck.bsky.social · 04/07/2026
Agentic Engineering Weekly for June 26 – July 4, 2026 Beck repriced some skills at zero, Boris redrew the org chart and reinvented a twenty-year-old map, and Doctorow asked a question that cuts through every AI argument agentic-engineering-weekly.jovaneyck.be/agentic-engi... #agenticengineering
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Jo Van Eyck @jovaneyck.bsky.social · 04/07/2026
Personal AI assistants sound like something straight out of a sci-fi movie. Are they ready for prime-time or too good to be true? How expensive are they? Are they secure? In this week's video we set one up from scratch and try to hack it 🔓 youtu.be/9eB8dXrGRqs #hermesagent #openclaw #hostinger
youtu.be
Let's build our personal AI Assistant - And Then Try to Hack It!
YouTube video by Jo Van Eyck
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Charity Majors @charity.wtf · 21/06/2026
I get asked to read and blurb a lot of books. It's always an honor to be asked -- writing a book is a TON of work -- but I almost never do. If I wouldn't chase you down on the street and urge you to read a book, it feels wrong to blurb it. I would chase you down to read this. My blurb is true.
drcathicks.com
Dr. Cat Hicks
Leading the science of software success
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Mathias Verraes @mathiasverraes.bsky.social · 11/06/2026
It only took me 10 years to get Martin Fowler to come to DDD Europe, but totally worth it. Here pictured on stage with Eric Evans and Gien Verschatse
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Jo Van Eyck @jovaneyck.bsky.social · 30/05/2026
Agentic Engineering Weekly for May 22-30, 2026 agentic-engineering-weekly.jovaneyck.be/agentic-engi... #opus48 #tokenmaxxing #orchestrationtax #habitatengineering #agenticengineering
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for May 22-30, 2026
Code is the result of hundreds of decisions an hour, coding agents that makes them in your stead are not saving you any time. Big tech is waking up to the fact that tokenmaxxing only results in higher...
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Jo Van Eyck @jovaneyck.bsky.social · 23/05/2026
Agentic Engineering Weekly for May 15-22, 2026 Karpathy reframed "vibe coding". Google and Anthropic are hiring forward-deployed engineers by the dozen. GitHub gets hacked via their own tools. agentic-engineering-weekly.jovaneyck.be/agentic-engi...
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for May 15-22, 2026
OpenAI ran a negative 122% operating margin in Q1, Andrej Karpathy reframed his own term "vibe coding" as "raising the floor for everyone", putting it in sharp contrast with "agentic engineering". Gia...
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Jo Van Eyck @jovaneyck.bsky.social · 16/05/2026
Agentic Engineering Weekly for May 8-15, 2026 Harness engineering gained traction, the maintenance bill from a year of vibe coding came due, and METR put the first credible number on agent autonomy. agentic-engineering-weekly.jovaneyck.be/agentic-engi... #harnessengineering #anthropic
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for May 8-15, 2026
Harness engineering is gaining traction, the maintenance bill from a year of vibe coding is coming due, and METR puts the first credible number on agent autonomy. The vocabulary of 2026 is stabilizing...
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Samir Parikh @samirparikh.com · 15/04/2026
Wrote a blog post about Options in #fsharp blog.samirparikh.com/2026/04/opti...
blog.samirparikh.com
Options in F#
One type of discriminated union that is commonly used in F# is the Option type. The Option type is used to represent a value that may be p...
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Jo Van Eyck @jovaneyck.bsky.social · 10/05/2026
Does programming language choice still matter in the agentic engineering era? Watch this week's video and find out which language topped my benchmark. youtu.be/InDK4g1Bq6k #agenticengineering #claudecode #codex #githubcopilot #cursor
youtu.be
What programming language do AI coding agents prefer?
YouTube video by Jo Van Eyck
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Jo Van Eyck @jovaneyck.bsky.social · 09/05/2026
Agentic Engineering Weekly for May 1-9, 2026 DORA weighs in on ROI in enterprise, cognitive surrender, the enemy of my OpenAI enemy is my xAI friend. agentic-engineering-weekly.jovaneyck.be/agentic-engi... #DORA #OpenAI #Anthropic #xAI #CognitiveSurrender #AgenticEngineering
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for May 1-9, 2026
This week DORA weighs in on AI-assisted software development ROI in enterprise, the bottleneck conversation finally is starting to move up- and downstream from code to organization concerns, we gave t...
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Jo Van Eyck @jovaneyck.bsky.social · 02/05/2026
Agentic Engineering Weekly for April 24 - May 2, 2026 The honeymoon phase ended in stereo this week.More hard data on AI productivity, the pricing reset got calendar entries, techlash gets organised into actual policy agentic-engineering-weekly.jovaneyck.be/agentic-engi... #claudecode #cursor
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for April 24 - May 2, 2026
The honeymoon ended in stereo this week. More hard data on AI velocity landed (10-15%, not the 3X your CEO has been quoting), the pricing reset got calendar entries, the techlash got organised into ac...
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Jo Van Eyck @jovaneyck.bsky.social · 25/04/2026
Agentic Engineering Weekly for April 17-25, 2026 Full issue: agentic-engineering-weekly.jovaneyck.be/agentic-engi... #gpt55 #agenticengineering #thoughtworks #techradar #tokenmaxxing
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for April 17-25, 2026
This week, the receipts arrived from every direction at once. Thoughtworks' Tech Radar reads like a warning letter, frontier models silently corrupt a quarter of what you delegate to them, and the com...
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Jo Van Eyck @jovaneyck.bsky.social · 18/04/2026
Agentic Engineering Weekly for April 11-18, 2026 agentic-engineering-weekly.jovaneyck.be/agentic-engi... #agenticengineering #opus47 #jevonsparadox
agentic-engineering-weekly.jovaneyck.be
Agentic Engineering Weekly for April 11-18, 2026
Generation never was the bottleneck. This week the industry finally started noticing and we're landing on the uncomfortable truth: attention might be all transformer architectures need, but our own at...
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Jo Van Eyck @jovaneyck.bsky.social · 12/04/2026
www.youtube.com/watch?v=R1na... Talk like a caveman. Wrap CLI toolcalls. Spend 50% less tokens. What's not to like? #agenticengineering #aiengineering #claudemythos
youtube.com
Cut your LLM token bill in half with these 2 simple tricks.
YouTube video by Jo Van Eyck
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Jo Van Eyck @jovaneyck.bsky.social · 11/04/2026
agentic-engineering-weekly.ghost.io/agentic-engi... Two independent datasets landed this week that make it hard to keep presenting AI productivity as a global rising tide. Mythos or Meh-thos? #agenticengineering #mythos
agentic-engineering-weekly.ghost.io
Agentic Engineering Weekly for April 4-11, 2026
Two independent datasets landed this week that make it hard to keep presenting AI productivity as a global rising tide, and in the same seven days DHH, Charity Majors, Fowler and Beck all arrived at the same uncomfortable conclusion: the window for rational skepticism has closed and its time for
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Phillip Carter @phillipcarter.dev · 08/04/2026
Alright, uhhh, I'm just gonna say it: You fuckin' goobers are really underestimating Copilot CLI. As far as my work is concerned, it's just as good as Claude Code Like, it's legit good: github.com/features/cop...
github.com
GitHub Copilot CLI
GitHub Copilot CLI reads, writes, and runs code where you work. Code faster, smarter, together.
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Jo Van Eyck @jovaneyck.bsky.social · 04/04/2026
Your skills.md have an expiration date youtu.be/eoUU0bUMFl4 #agenticengineering
youtu.be
Your skills.md have an expiration date. Here's what do to about it.
YouTube video by Jo Van Eyck
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Jo Van Eyck @jovaneyck.bsky.social · 04/04/2026
Software engineer and drowning in hourly slack pings from colleagues and linkedin slop trying to find what matters for the job going forward? 1 newsletter per week, 100% free, fresh and hand-curated. You're very welcome. agentic-engineering-weekly.ghost.io #agenticengineering #aiaugmentedcoding
agentic-engineering-weekly.ghost.io
Agentic engineering weekly
weekly agentic engineering digests. Curated for practitioners by practitioners
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Mathias Verraes @mathiasverraes.bsky.social · 30/03/2026
Appreciate having second thoughts. It means you’re already two thoughts ahead of almost everybody else.
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The Crafty Maker @thecraftymaker.bsky.social · 28/03/2026
How to Stop Claude Code from Burning Its Context Window on Noise (RTK on Windows) open.substack.com/pub/thecraft...
open.substack.com
How to Stop Claude Code from Burning Its Context Window on Noise (RTK on Windows)
RTK cuts 80-99% of token waste from build output, git commands, and test runs. Here's how to get the automatic hook working on Windows, since the installer won't do it for you.
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Jo Van Eyck @jovaneyck.bsky.social · 28/03/2026
🎥 "When Worlds Collide: Software Engineering meets AI Engineering" Software engineering and AI engineering are often treated as separate disciplines. In practice, they're converging fast, and the people who'll thrive are the ones comfortable dancing between both. youtu.be/xZMNdehWJBg #aie #swe
youtu.be
When worlds collide: software engineering meets AI engineering
YouTube video by Jo Van Eyck
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Sergey Tihon 🦔🦀 @sergeytihon.com · 22/03/2026
F# Weekly #12, 2026 - 11 years of Ionide 🥰 #fsharp sergeytihon.com/2026/03/22/f...
sergeytihon.com
F# Weekly #12, 2026 – 11 years of Ionide 🥰
Welcome to F# Weekly, A roundup of F# content from this past week: News NBomber Studio 0.6.2 | NBomber F# Meetup (Recorded at NRK edition), Wed, Mar 25, 2026, 5:30 PM | Meetup Microsoft News Our co…
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Jo Van Eyck @jovaneyck.bsky.social · 23/03/2026
youtu.be/ov0-aDC5rBQ Lots of teams are shipping changes faster than they can understand. This gap is cognitive debt; and it compounds quickly, especially with AI coding agents in the picture. Let's look at 5 techniques I apply to stay in touch. #aicoding #agenticengineering #claudecode
youtu.be
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Doc Norton @docondev.bsky.social · 17/03/2026
Part one of a three part series on the potential impact of AI on the tech industry docondev.com/blog/2026/3/...
docondev.com
This Has Happened Before. It's Happening Again. — Doc Norton & Associates
I don't think we have five years before agentic coding becomes the mainstream context in which professional software development happens. I think we're talking about two or three. Possibly less. If t...
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Justin Searls @searls.bsky.social · 15/03/2026
Dual-loop BDD is the new Red-green TDD
justin.searls.co
Dual-loop BDD is the new Red-green TDD
This one goes out to all the testing neophytes who only recently realized (https://simonwillison.net/guides/agentic-engineering-patterns/red-green-tdd/) that it's useful to have an automated means of verifying their code does what it claims to do. For the last month, I've been working on prove_it (https://github.com/searls/prove_it), a framework for building quality harnesses for Claude Code (https://claude.com/product/claude-code)—primarily via its hooks system (https://code.claude.com/docs/en/hooks). In a recent release, I added TDD enforcement to its default configuration. First, it injects a test-first development approach into every plan Claude generates. Then, a PreToolUse hook follows up with permissionDecisionReason reminders whenever the agent deviates from the one true path (e.g., repeatedly edits source files without touching any tests, never runs a test to see it fail, etc.).
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David Whitney @davidwhitney.co.uk · 11/03/2026
I put together a piece on how I'm doing co-design with agents in some of my dev work at the moment, and how there's a very specific through line from XP and the sort of software design and intentionality I talk about often. Trying to capture my working patterns. davidwhitney.co.uk/blog/2026/03...
davidwhitney.co.uk
The Programmers's Guide to Co-Designing with Agents - david whitney, agile & software practices in london
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Jo Van Eyck @jovaneyck.bsky.social · 11/03/2026
agentic AI + large codebases = 💩 AI + LSP + large codebases = 💡 On March 14th I'll be attending the virtual event "Safely Refactor Production Codebases with AI" to look for more tools fit for legacy code! Interested? I have a dicsount code for you: VANEYCK40 www.eventbrite.com/e/safely-ref...
eventbrite.com
Safely Refactor Production Codebases with AI
Breaking API migrations, hidden coupling, and large-scale rewrites — done safely with AST-backed AI workflows.
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Simon Willison @simonwillison.net · 10/03/2026
AI should help us produce better code simonwillison.net/guides/agent...
simonwillison.net
AI should help us produce better code - Agentic Engineering Patterns
AI should help us produce better code - Agentic Engineering Patterns
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JA Westenberg @joanwestenberg.com · 08/03/2026
The average punter does not want to build software. They don't want to prompt software. They don’t even want to describe software. www.joanwestenberg.com/ai-twitters...
joanwestenberg.com
AI twitter's favourite lie: everyone wants to be a developer
Twitter's latest consensus on inevitability: now that large language models can write code, everyone will become a software developer. People, you see, have problems, and software solves problems, and AI removes the barrier between people and software, therefore everyone will build their own software. It's a syllogism, after a fashion,
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Jo Van Eyck @jovaneyck.bsky.social · 08/03/2026
Coding is dead. (Long live the software engineer) youtu.be/0jaocLi1rF0?... 📺 #aicoding #agenticengineering #claudecode #githubcopilot #vibecoding
youtu.be
Coding is dead. Long live the software engineer.
YouTube video by Jo Van Eyck
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Blaine @blaine.bsky.social · 04/03/2026
If your job was to know when to hit the semicolon key on the keyboard, I'm sad to say that's not an employable skill anymore. If you shape ideas into tools and art via code, it's really so much better than ever now, and I don't see that changing soon.
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Simon Willison @simonwillison.net · 04/03/2026
I started a new chapter of my Agentic Engineering Patternw guide about anti-patterns - things NOT to do So far I only have one: Inflicting unreviewed code on collaborators, aka dumping a thousand line PR without even making sure it works first simonwillison.net/guides/agent...
simonwillison.net
Anti-patterns: things to avoid - Agentic Engineering Patterns
Anti-patterns: things to avoid - Agentic Engineering Patterns
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Jo Van Eyck @jovaneyck.bsky.social · 22/02/2026
youtu.be/cucwqk-2YGo You should be looking for velocity, not just speed. Speed lacks direction. More autonomy requires more constraints, not just bigger specs. #aicoding
youtu.be
Are you still babysitting AI coding agents? Build better guardrails!
YouTube video by Jo Van Eyck
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Cat Hicks @grimalkina.bsky.social · 15/02/2026
Key to efficient learning is realizing how we ACTUALLY learn, not just what FEELS like learning. I wrote a Claude Skill for some friends to help them think about this and they've liked it -- see Principles for some directions you could explore github.com/DrCatHicks/l...
github.com
GitHub - DrCatHicks/learning-opportunities: A Claude Code skill for deliberate skill development during AI-assisted coding
A Claude Code skill for deliberate skill development during AI-assisted coding - DrCatHicks/learning-opportunities
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Simon Willison @simonwillison.net · 15/02/2026
Short musings on "cognitive debt" - I'm seeing this in my own work, where excessive unreviewed AI-generated code leads me to lose a firm mental model of what I've built, which then makes it harder to confidently make future decisions simonwillison.net/2026/Feb/15/...
simonwillison.net
How Generative and Agentic AI Shift Concern from Technical Debt to Cognitive Debt
This piece by Margaret-Anne Storey is the best explanation of the term cognitive debt I've seen so far. Cognitive debt, a term gaining traction recently, instead communicates the notion that …
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Jo Van Eyck @jovaneyck.bsky.social · 08/02/2026
Buckle up. This year the way we write software will change. In this video, I map out where software engineering is heading, introduce a practical maturity ladder and zoom in on essential skills if you want to stay effective in 2026 and beyond. 📺 youtu.be/6W_-YWHKwZ4
youtu.be
You are Not Ready: Agentic coding in 2026
YouTube video by Jo Van Eyck
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Maggie Appleton @maggieappleton.com · 23/01/2026
I have Gas Town derangement syndrome and spent the last few weeks writing thousands of words on agent orchestration patterns; how they shift our bottlenecks and force us to ask whether and when we should stop looking at code maggieappleton.com/gastown
maggieappleton.com
Gas Town’s Agent Patterns, Design Bottlenecks, and Vibecoding at Scale
On agent orchestration patterns, why design and critical thinking are the new bottlenecks, and whether we should let go of looking at code
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Patrick Perini @pcperini.com · 10/01/2026
Discord wants to know how you feel about AI. Go tell them: discord.sjc1.qualtrics.com/jfe/form/SV_...
discord.sjc1.qualtrics.com
Qualtrics Survey | Qualtrics Experience Management
The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.
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