My business partner sent a 5K vibe-coded PR that he didn't even test
A developer's business partner shipped a 5,236-line untested vibe-coded payments backend PR whose endpoints failed basic testing.
The author describes reviewing a pull request with 5,236 additions for a payments backend that a business partner generated largely with AI in a single day without testing. The PR's AI-written documentation included redundant boilerplate (e.g., 'returns 400 on error') but omitted operational details like where to obtain API keys, and the endpoints failed when tested. The post is a critical opinion piece on vibe coding and perceived skill atrophy among developers who rely on AI for everything.
- 5,236-line vibe-coded PR for a payments backend was untested
- Endpoints failed two minutes of basic testing; docs lacked API key info
- Author criticizes AI-assisted development and skill decline
- Piece is a personal opinion post, not a technical analysis
Full article405 words · extracted from ycj.bearblog.dev · click to collapse
08 Sep, 2026
The whole payments backend module, which I specifically told him to work together with me (I do frontend), was vibe-coded by him in one single day.
How nice, to not have to discuss with the human being who will be using your code and knows what he wants, and instead work with a sycophantic "yes man" AI right?
All 5,236 additions to the Github PR, including a documentation that is so blatant of AI redundancies (for example, saying that an error returns "400" on the API).
I understand that AI doesn't know that I know what a 400 is, but my friend should at least read that document and know better.
So here's the sad part. I understand y'all vibe-coding features and being 10x engineer and way faster than me.
But I just went to test the PR...
It doesn't work.
He didn't even TRY the endpoints.
It takes two minutes to run the endpoints that Don Claudio so happily added to Bruno.
Two minutes.
He clearly didn't read the documentation as there was a lot of stuff missing. Stupid explanations about a "returns 400 on error" but missing info on where to get API keys.
And I specifically told him, when we started this project, that he should be very careful of falling into the AI trap of letting his cognitive abilities decline.
"Yes, yes, no worries man I know what I'm doing".
Famous last words.
Well, as much as people lose all their muscle by been bed-ridden, he's lost all his brain by being AI Assisted™️.
THIS is what I am so against when people use AI for everything.
And I know, some of you will say "but that ain't me, haha, I can sit in my couch and watch TV all day and not exercise and keep all my muscle!"
Well wait until you go play a basketball game with your pals and you'll realize you're out of breath in two minutes.
I know it's a losing battle for the few of us who learned to program and still program mostly by hand because we love the amount of stimulation it brings our brains.
My friend used to be one of those people. But I think there's almost nobody left.
Those days are gone, and I'm still grieving, but I think this is my very last battle.
After this project, I'm done. I might turn into a yoga teacher.
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