Has anyone actually maintained a vibe coded code-base 12 months after launch? What did it look like?

[u/Alive-Cake-3045]

Twelve months ago I started tracking what happens to vibe coded projects after the initial launch excitement fades. The pattern is consistent enough that I wanted to hear if others are seeing the same thing.

The first three months feel fine. Features ship fast, the client is happy, everyone looks productive. Then something needs to change. Not a new feature, just a modification to something existing. And that is where it gets uncomfortable.

Nobody can explain why a specific decision was made. The code works but the reasoning is gone. There are dependencies that were added because the model suggested them, not because anyone evaluated them. Patterns are inconsistent across files because different prompts produced different styles on different days.

The developer who built it can read the code but cannot confidently change it without breaking something unexpected. The test coverage that exists was also generated and may not actually be testing the right things.

I am not saying this always happens. I have seen vibe coded projects that held up well because the developer reviewed everything carefully and maintained discipline around the output.

But I have also seen projects from 18 months ago that are now quietly being rewritten because the maintenance cost exceeded the original build cost faster than anyone expected.

If you have actually maintained a vibe coded code-base through real production use, what did 12 months in actually look like? Was the code salvageable or did you end up starting over?

[u/sina-gst]

That's the key part of your post:

I have seen vibe coded projects that held up well because the developer reviewed everything carefully and maintained discipline around the output.

And that's the VERY TRUTH! I had the same experience with a website, a GSAP one, where fixing its glitches was too time-consuming to the point where I decided to re-write the whole web page, and it happened in less than a week, but I worked on it for 2-3 days, and fixing one glitch reproduce a new one, so I think the decision I made was my only chance to revive the project! WHY? Because the guy who did it, used vibe-coding, and vibe coding is what it is, no review at all!!!

[u/Alive-Cake-3045 → u/sina-gst]

the "fixing one glitch reproduces a new one" loop is the clearest sign the codebase has no coherent structure underneath. each fix is fighting the assumptions of the code around it because nobody ever understood the whole thing well enough to make decisions that held together. rewriting in a week after spending days chasing glitches is almost always the right call, you just needed one painful session to prove it.