Stefan Wendel

Developer, Software-Architect and Product-Owner. Committed to AI-Development, Services, Cloud Computing. Sharing Lessons-Learned on

[Stefan Wendel @stef_84]

@Struffitennis Held von Wimbledon ! Mach weiter ! Geiles Spiel … come on !danke für so viel spaß (und netz-Drama)

[Stefan Wendel @stef_84]

What about MCP-Gateways? Do they already exist in a production-ready-grade? https://t.co/3Ip05xVrvW

[Stefan Wendel @stef_84]

Dependencies are still good in valid in an agentic world. What we have to do is rethink the way we deal with our credentials : why do we keep AWS ADMIN credentials on our dev boxes ? Why not using an IAM readonly user only for an AWS dev setup - it’s a difference if someone finds the key to the house vs someone looking through a window from the outside. Still a bad experience but not destroying you.

[Stefan Wendel @stef_84]

Turn recurring agent workflows into reusable slash commands aka Skills. Learning 105 walks through building a Claude Code skill that checks your Netlify deploy status

https://t.co/7CphxK46yw

[Stefan Wendel @stef_84]

No need to install external tools or heavyweight IDEs. A dead simple workflow for passing screenshots to your AI agents in the terminal — three steps, just macOS built-in tools.

👉 https://t.co/X0JxPlUIZR

[Stefan Wendel @stef_84]

I had multiple Gmail accounts — one per project. Google suspended the latest one due to the same phone number on all accounts. Two days of total lockout across GitHub, Vercel, and every service tied to "Login with Google."

OAuth is a convenience feature, not a security architecture. Treat it like one.

Lesson learned, the hard way: https://t.co/EDFejEq4Wa

[Ihtesham Ali @ihteshamali]

I accidentally discovered how to compress a semester of learning into 48 hours.

A grad student at MIT showed me his NotebookLM setup. I thought he was just organized. Then I watched him pass a qualifying exam on a subject he'd never studied before.

Here's exactly what he did:

First: he didn't upload a textbook.

He uploaded 6 textbooks, 15 research papers, and every lecture transcript he could find on the subject.

Then he asked NotebookLM one question:

"What are the 5 core mental models that every expert in this field shares?"

Not "summarize this." Not "explain this topic."
Mental models. The stuff that takes professors years to develop.

But the next part is what broke my brain.

He followed up with:

"Now show me the 3 places where experts in this field fundamentally disagree, and what each side's strongest argument is."

In 20 minutes he had a map of the entire intellectual landscape of the field:
the debates, the consensus, the open questions.

Most students spend a full semester just figuring out what those debates even are.

Then he did something I've never seen before.

He asked:

"Generate 10 questions that would expose whether someone deeply understands this subject versus someone who just memorized facts."

He spent the next 6 hours answering those questions using the source material. Every wrong answer triggered a follow-up:

"Explain why this is wrong and what I'm missing."

By hour 48, he could hold a conversation with his thesis advisor without getting destroyed.

The tool didn't change. The questions did.

Most people treat NotebookLM like a fancy highlighter.
These students are using it like a private tutor who has read everything ever written on the subject.

The difference between a semester and 48 hours isn't the amount of content.

It's knowing which questions to ask.

[Stefan Wendel @stef_84]

AI agents write code — but they know nothing about your project. No memory, no context, no architecture decisions.

That turns documentation from "nice to have" into mission-critical.

Shift Into: docs aren't a process step — they're part of the build.

👉 https://t.co/1Mze7DPVhD

[Stefan Wendel @stef_84]

@elonmusk Hey Elon … my son and I are watching the stars and my 10-yr old is wondering: can you reprogram your satellites so that they represent an X in the sky?

[Stefan Wendel @stef_84]

@martinfowler @unclebobmartin Very often, especially in tec decisions, we don’t spend enough time in the „problem space“ … what are we trying to solve and do we all have the same understanding of the problem

[Stefan Wendel @stef_84]

Obama meets Springsteen on Spotify: https://t.co/fY9mrBk7Ug

[@mikko @mikko]

Breaking: Mars becomes the second planet that has more computers running Linux than Windows.

[Elon Musk @elonmusk]

This is called the domino effect

[Stefan Wendel @stef_84]

Vorstandsentscheid Adidas: keine Miete mehr zahlen - Vorstandsentscheid Trigema: Schutzmasken produzieren https://t.co/45hCDfJAQm

[Stefan Wendel @stef_84]

Wenn das alles vorbei ist sollten wir uns dran erinnern, wer sich wie verhalten hat https://t.co/5q5pn7A4x5

[Stefan Wendel @stef_84]

https://t.co/898XpRJU0N Hilferuf aus Ungarn

[Stefan Wendel @stef_84]

GitHub - historicalsource/hitchhikersguide: The Hitchhiker's Guide to the Galaxy, by Steve Meretzky and Douglas Adams (Infocom) https://t.co/fKRuVzJ63r

[Stefan Wendel @stef_84]

Erfolgreiche Erziehungsmassnahme in Sachen Datenschutz: „Googlers have lost Access to their ... Food and Shuttle Apps“ ... Bravo #Apple https://t.co/dlZadn87dY

[Stefan Wendel @stef_84]

Lombok makes Java cool (again) https://t.co/F1ZizPJ6Qq

[Stefan Wendel @stef_84]

Wir hatten mit unserem 5-jährigem am Wochenende geübt, wie er sich verhalten soll wenn ein fremder ihm 20 Euro anbietet - muss offensichtlich aufs Internet und Facebook ausgeweitet werden https://t.co/kBebEX72ON