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I used agentic LLM dev tools to build the core of my webapp. It took months, I had a QA person at the beginning, and I looked at every line of committed code. It was a revelatory experience and resulted in a very reliable webapp.

Last month I thought: "OK, I have all kinds of rules, guardrails, and I am relatively excellent at managing context. Let's try to 'vibe code' some new features."

It has been a total disaster and worse than a waste of time. I keep finding entirely new weird bugs it created. This is just a React/Vite/Supabase app, nothing nuts. The worst part is that I showed these vibed features to stakeholders, and they loved it. Now I have to explain why recreating these features is going to take much longer.

I knew better, as the magic of vibe coding is to explore the MVP space, and I still fell for it.



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