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Posts by Marcin Grzejszczak

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Generate, Break, Fix: Distributed Systems in the AI Era by Marcin Grzejszczak on Maven Diagnose, fix, and prevent the distributed systems failures that every AI coding agent creates - in any language.

Today I've managed to officially confirm with the first company to deliver a workshop similar to this one maven.com/toomuchcodin... ! Around 40 people 😱! If your company is also interested ping me 💪

3 days ago 0 0 0 0
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Generate, Break, Fix: Distributed Systems in the AI Era by Marcin Grzejszczak on Maven Diagnose, fix, and prevent the distributed systems failures that every AI coding agent creates - in any language.

Just FYI on April 1st, the TOOMUCHCODING promo code that gives you a 200$ discount will be turned off. If there's a discount it will not be that high anymore so that's your last chance really to use it! Use this link to get your discount now: maven.com/toomuchcodin...

1 week ago 1 0 0 0
A Typo Led to the Creation of Spring Cloud Contract • Marcin Grzejszczak & Jakub Pilimon • GOTO 2026
A Typo Led to the Creation of Spring Cloud Contract • Marcin Grzejszczak & Jakub Pilimon • GOTO 2026 YouTube video by GOTO Conferences

A junior dev fixed a typo. It broke production. That bug eventually led to #SpringCloudContract. @toomuchcoding.com sits down with Jakub Pilimon to talk 15y of Spring, why #observability is missing context & how AI might fix the contract testing adoption problem for good 👇
youtu.be/D-yp3sB8cu0?...

1 week ago 3 3 0 0
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A Typo Led to the Creation of Spring Cloud Contract • Marcin Grzejszczak & Jakub Pilimon • GOTO 2026 YouTube video by GOTO Conferences

Another dream come true! It was such honor and pleasure to have been interviewed by Jakub Pilimon for @gotocon.com . Enjoy! www.youtube.com/watch?list=P...

1 week ago 3 1 0 0
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Generate, Break, Fix: Distributed Systems in the AI Era by Marcin Grzejszczak on Maven Diagnose, fix, and prevent the distributed systems failures that every AI coding agent creates - in any language.

Aaaand I have my first student for the June's cohort! Be like Wojciech! Let's Generate, Break and then Fix stuff with AI 😀 maven.com/toomuchcodin...

1 week ago 0 0 0 0
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Generate, Break, Fix: Distributed Systems in the AI Era by Marcin Grzejszczak on Maven Diagnose, fix, and prevent the distributed systems failures that every AI coding agent creates - in any language.

Do you know that there are already 100 people on the waitlist of maven.com/toomuchcodin... workshop? And do you know that you can get 200$ discount with the TOOMUCHCODING promo code? The offer is valid until the end of March. There will not be any such discount again!

2 weeks ago 1 1 0 0
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Watch AI Build a Microservice. Watch Me Break It in 60 s AI can generate clean microservices in seconds. But production systems fail due to latency, retries, and dependency coupling - not syntax errors. In this live demo, you’ll see how a small delay can…

Final call! In 4 hours we start the lightning lessons about breaking #AI code in 60 seconds! maven.com/p/4b47ed/wat... Join me - it's going to be fun!

3 weeks ago 0 0 0 0
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Watch AI Build a Microservice. Watch Me Break It in 60 s AI can generate clean microservices in seconds. But production systems fail due to latency, retries, and dependency coupling - not syntax errors. In this live demo, you’ll see how a small delay can…

How time flies! In about 20 hours I'm running my lightning lesson! maven.com/p/4b47ed/wat... tell your friends, tell your family, bring your dog - it's going to be fun!

3 weeks ago 1 0 0 0
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You've got my attention ;)

3 weeks ago 0 0 1 0

Yeah i saw it somewhere laying around here, thanks! Your reply punched me straight in my face!

3 weeks ago 0 0 0 0

Claude is down... I remember that I used something to code myself one day, but what was that? 🤔

3 weeks ago 1 0 3 0
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Watch AI Build a Microservice. Watch Me Break It in 60 s AI can generate clean microservices in seconds. But production systems fail due to latency, retries, and dependency coupling - not syntax errors. In this live demo, you’ll see how a small delay can…

On Thursday 18:00 CEST I'm going the Lightning Session about me breaking AI generated apps. There are about 50 people already registered to watch - come and join us! Take your kids, your grandmother, your dog, all of them can start using AI! maven.com/p/4b47ed/wat...

3 weeks ago 1 0 0 0
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Watch AI Build a Microservice. Watch Me Break It in 60 s AI can generate clean microservices in seconds. But production systems fail due to latency, retries, and dependency coupling - not syntax errors. In this live demo, you’ll see how a small delay can…

Hey 👋 just a friendly reminder that on Thursday at 18 cest I'll be running a free (that's a good price!) lightning session about creating, running, breaking and fixing AI apps! Check it out here maven.com/p/4b47ed/wat...

4 weeks ago 2 0 0 0
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Watch AI Build a Microservice. Watch Me Break It in 60 s AI can generate clean microservices in seconds. But production systems fail due to latency, retries, and dependency coupling - not syntax errors. In this live demo, you’ll see how a small delay can…

#AI can generate microservices in seconds.

But it usually forgets timeouts, retries, and circuit breakers.

Next week I’ll run a live demo where we generate services with AI and then break them by injecting latency.

No slides. Just a terminal.

maven.com/p/4b47ed/wat...

1 month ago 1 0 0 0
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Watch AI Build a Microservice. Watch Me Break It in 60 s AI can generate clean microservices in seconds. But production systems fail due to latency, retries, and dependency coupling - not syntax errors. In this live demo, you’ll see how a small delay can ca...

What happens if you let AI build a microservice?

Next Thursday (12 Mar, 18:00 CET) I’ll show it live in a ⚡ lightning lesson.

First: AI builds the service.
Then: I try to break it in 60 seconds.

A quick look at what AI coding tools can - and can’t - do yet.

Details:
maven.com/p/4b47ed/wat...

1 month ago 0 0 0 0
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Watch AI Build a Microservice. Watch Me Break It in 60 s AI can generate clean microservices in seconds. But production systems fail due to latency, retries, and dependency coupling - not syntax errors. In this live demo, you’ll see how a small delay can…

I’m running a live demo on March 12 (6 pm CET).

I’ll have AI generate two services.
We’ll look at the code.
Then I’ll add latency and break it live.

No slides. Just a terminal and real behavior.

maven.com/p/4b47ed/wat...

If you’re using #AI to build backend systems, this is worth your time.

1 month ago 0 0 0 0

I want it!

1 month ago 0 0 0 0

thanks I'll check it out!

1 month ago 0 0 0 0
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Wdym by "TEST ASSERTION DSLS ARE BAD."?

1 month ago 0 0 1 0

AbstractSingletonProxyFactoryBeanPostProcessor

1 month ago 1 0 0 0
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I love plan mode! | Marcin Grzejszczak Why I think plan mode is awesome...

Are you a fan of "plan mode" too? I wrote a blog post about why I think it's awesome toomuchcoding.com/post/2026-02... (of course LLM still ignores what we agreed upon there...) #YesYouAreRight #YouAreAbsolutelyRight

1 month ago 2 0 0 0
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🎤 Agata Kabat is joining our speakers!

In her talk “Before the To-Do List: The One Conversation Every Team Needs”, Agata will explore how intentional communication and a strong team contract build real collaboration, trust, and productivity.

2026.geecon.org/speakers/inf...

1 month ago 2 1 0 0
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I Can See Clearly Now: Observability of JVM & Spring Boot 2-3-4 apps Friday, March 6, 2026 @ 1:20 PM

Is your production app behaving like a gremlin? Stop the chaos! Join Jonatan Ivanov at #Devnexus to learn how to make your #Java, #JVM, and #SpringBoot applications observable. Get the practical tools you need.

https://brcm.tech/46CHHch

1 month ago 3 3 0 0
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Generate, Break, Fix: Distributed Systems in the AI Era - new workshop! | Marcin Grzejszczak Generate, Break, Fix: Distributed Systems in the AI Era - I'm running a new workshop!

My new post about the new AI workshops! toomuchcoding.com/post/2026-02... #ai

1 month ago 0 0 0 0
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I am proud of myself. I'm almost out of tokens but at least this time 1 HOUR HAS PASSED!!! #YouAreAbsolutelyRight

1 month ago 0 0 0 0
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Subscribe | Marcin Grzejszczak If you’d like new posts by email, subscribe below (unsubscribe anytime): Previous issues Below are links to previous issues.

I've added links to the old issues of the TooMuchCoding newsletter. If you want to check them out just go here toomuchcoding.com/subscribe/ (but why click if you can subscribe and get the issues straight to your email?)

1 month ago 0 0 0 0
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Issue #10 of the TooMuchCoding newsletter is out! 10 straight weeks of publishing info about what's going on in the IT world - so you don't have to! If you're interested in AI, JVM, Observability etc. go to toomuchcoding.com/subscribe/ and subscribe!

1 month ago 1 0 0 0
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Generate, Break, Fix: Distributed Systems in the AI Era by Marcin Grzejszczak on Maven Diagnose, fix, and prevent the distributed systems failures that every AI coding agent creates - in any language.

Hey 👋 I'm preparing a workshop about working with AI and distributed systems. If you're interested in the topic please help me out and fill out the survey! maven.com/toomuchcodin... #ai #microservices

1 month ago 0 0 0 0
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If I got a dollar every time I read this... #YouAreAbsolutelyRight

1 month ago 1 0 0 0
https://maven.com/forms/e8d298

Hey 👋 i need your help and your feedback about AI and distributed systems (for my workshop agenda). Please fill out the survey and repost 🙏 maven.com/forms/e8d298

1 month ago 0 0 0 0