Jo Van Eyck's Avatar

Jo Van Eyck

@jovaneyck

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

219
Followers
187
Following
55
Posts
18.11.2023
Joined
Posts Following

Latest posts by Jo Van Eyck @jovaneyck

Preview
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,

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...

08.03.2026 11:29 πŸ‘ 48 πŸ” 14 πŸ’¬ 4 πŸ“Œ 9
Coding is dead. Long live the software engineer.
Coding is dead. Long live the software engineer. YouTube video by Jo Van Eyck

Coding is dead. (Long live the software engineer)

youtu.be/0jaocLi1rF0?... πŸ“Ί

#aicoding #agenticengineering #claudecode #githubcopilot #vibecoding

08.03.2026 20:03 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

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.

04.03.2026 17:19 πŸ‘ 171 πŸ” 18 πŸ’¬ 14 πŸ“Œ 7
Anti-patterns: things to avoid - Agentic Engineering Patterns Anti-patterns: things to avoid - Agentic Engineering Patterns

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...

04.03.2026 18:19 πŸ‘ 172 πŸ” 20 πŸ’¬ 6 πŸ“Œ 6

This seems like a super relevant tool to counter the whole "cognitive debt" issue wrt AI coding tools. How feasible do you think it would be to generate these kinds of diagrams highlighting a batch of AI driven changes, e.g. a PR's worth, focusing more on the delta rather than the entire codebase?

01.03.2026 11:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This is the way!

01.03.2026 11:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Are you still babysitting AI coding agents? Build better guardrails!
Are you still babysitting AI coding agents? Build better guardrails! YouTube video by Jo Van Eyck

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

22.02.2026 13:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
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

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...

15.02.2026 15:54 πŸ‘ 211 πŸ” 43 πŸ’¬ 9 πŸ“Œ 23
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 …

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/...

15.02.2026 05:22 πŸ‘ 465 πŸ” 88 πŸ’¬ 42 πŸ“Œ 20

#aicoding #claudecode #ralphwiggum #beads #gastown #openclaw

08.02.2026 18:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
You are Not Ready: Agentic coding in 2026
You are Not Ready: Agentic coding in 2026 YouTube video by Jo Van Eyck

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.

πŸ“Ί youtu.be/6W_-YWHKwZ4

08.02.2026 18:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
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

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

23.01.2026 14:26 πŸ‘ 282 πŸ” 54 πŸ’¬ 16 πŸ“Œ 22

You can give it examples of tests in "your style" to mitigate 3.

Hard agree on 4 though, you just saved yourself some monkey work

23.01.2026 10:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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.

Discord wants to know how you feel about AI.

Go tell them: discord.sjc1.qualtrics.com/jfe/form/SV_...

10.01.2026 00:53 πŸ‘ 11097 πŸ” 11206 πŸ’¬ 352 πŸ“Œ 1501
Preview
What is Continuous Delivery?

Published: What is Continuous Delivery?

It takes nine principles, one heuristic, three foundations, one pattern and three practices to practice truly Continuous Delivery.

thinkinglabs.io/articles/202...

09.01.2026 14:30 πŸ‘ 15 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
AI coding patterns (that actually work)
AI coding patterns (that actually work) YouTube video by Jo Van Eyck

In this video we'll quickly go over the awesome "AI augmented coding patterns" by @lexler.bsky.social and others.

Are you a cyborg or a centaur? Watch the video and find out!

youtu.be/54I-mOMwdtM

#aiaugmentedcoding #claudecode #githubcopilot #cursorcode

23.12.2025 11:02 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
fsi-mcp: injecting AI coding agents into my F# REPL workflow Ever since discovering F#, I’ve fallen in love with the language. In fact, I’ve used it so extensively that my brain has been rewired in thinking functionally. When I think about algori…

Link to blog post: jvaneyck.wordpress.com/2025/12/04/f...

Showcase video: youtu.be/_AxsTQDxSbc?...

#fsharp #FsAdvent

04.12.2025 16:32 πŸ‘ 13 πŸ” 4 πŸ’¬ 3 πŸ“Œ 0
Lobby

Visualization of Day 3 (Lobby), written in Elm #AdventOfCode einarwh.no/aoc/2025/day...

04.12.2025 10:31 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
πŸŽ„ Advent of code 2025 in F# - day 04
πŸŽ„ Advent of code 2025 in F# - day 04 YouTube video by Jo Van Eyck

Advent of code in F# - day 4

After modular arithmetic and dynamic programming, today felt like a breath of fresh air πŸ˜…

youtu.be/RF-YIFsPe7A

#adventofcode #fsharp

04.12.2025 06:36 πŸ‘ 11 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Augmented Coding Patterns A collection of emerging patterns, anti-patterns, and obstacles for effective AI-augmented software development

If this happens during an interactive session I immediately kill the session and start a new one. Context window compaction always leads to noticeable degraded quality in my experience

This resource contains the best patterns & heuristics to make it work:
lexler.github.io/augmented-co...

03.12.2025 17:50 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
πŸŽ„ Advent of code 2025 in F# - day 02
πŸŽ„ Advent of code 2025 in F# - day 02 YouTube video by Jo Van Eyck

Advent of code in F# - day 02

youtu.be/AIuhrDGmuVA
github.com/jovaneyck/ad...

#adventofcode #fsharp

02.12.2025 06:39 πŸ‘ 14 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

My bad, completely glossed over πŸ˜…

28.11.2025 14:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The "4 pillars of a good unit test" more specifically

28.11.2025 11:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Unit Testing Principles, Practices, and Patterns - Vladimir Khorikov Refine your existing unit tests by implementing modern best practices. Upgrade your testing suite with new testing styles, good patterns, and reliable automated testing.

Gteat list!

I also appreciate the framing here: www.manning.com/books/unit-t...

28.11.2025 11:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Sign me up!

16.11.2025 08:35 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The old developer. *sobs in recognition*

11.11.2025 20:15 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image

That’s a wrap for day one of #SocratesBE
Here’s a FOMO inducing photo of today’s marketplace.
What you don’t see is Vincent’s legendary lightning talk on Limburgse Vlaai. That happened Thursday evening already.

10.10.2025 22:38 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
GitHub - jovaneyck/fsi-mcp-server: A wrapper around F# interactive (fsi) that exposes an MCP server endpoint for AI agents allowing for fsi IO. A wrapper around F# interactive (fsi) that exposes an MCP server endpoint for AI agents allowing for fsi IO. - jovaneyck/fsi-mcp-server

Great idea!
Not serena-related, but I've been working on opening up my fsi.exe sessions over mcp and it has been very fun programming this way: github.com/jovaneyck/fs...

10.10.2025 12:49 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Preview
Add F# support using FsAutoComplete LSP by dsyme Β· Pull Request #662 Β· oraios/serena This adds F# support by the usual path, using the standard F# LSP Using Serena with F# Projects This guide demonstrates how to use Serena's tools with F# projects through both the MCP protocol...

F# folk - I've started a PR to add F# support to the Serena MCP server, that effectively allows the use of the F# language server from coding agents.

github.com/oraios/seren...

Please be welcome to contribute to get this over the line.

cc @chethusk.bsky.social

Thanks
Don

10.10.2025 11:11 πŸ‘ 13 πŸ” 3 πŸ’¬ 2 πŸ“Œ 0
Embracing the parallel coding agent lifestyle For a while now I’ve been hearing from engineers who run multiple coding agents at onceβ€”firing up several Claude Code or Codex CLI instances at the same time, sometimes in …

I've become one of those people who run multiple coding agents at once - here are my notes on embracing the parallel coding agent lifestyle simonwillison.net/2025/Oct/5/p...

05.10.2025 13:56 πŸ‘ 163 πŸ” 14 πŸ’¬ 25 πŸ“Œ 1