Here's the situation, probably: it works. It's in production, or close to it. And somewhere between the first prompt and now, you stopped being able to explain big parts of it. That's not a confession you owe anyone — plenty of real, shipped products started exactly this way in 2026. But "it works" and "it's safe to keep building on" are different claims, and right now you can only vouch for the first one.
Here's how to close that gap without throwing the project away and starting over, which is almost never the right move.
Step 1 — Map it before you touch it
Before changing anything, get an honest inventory: what are the actual pieces (auth, database layer, payment handling, the core business logic), and for each one, could you explain it to a new hire without opening a chat window? Be specific and be honest — this isn't a test you're graded on, it's the actual map of your risk.
Step 2 — Start with what breaks the business if it's wrong
Not everything needs equal scrutiny. Auth, payments, and anything touching user data deserve a full read-through and understanding pass first — these are the places where "I don't fully understand this" is a genuine liability, not just a knowledge gap. A slightly-odd CSS utility function can wait.
Step 3 — Read it like a stranger's PR, not your own code
For each piece you flagged, go through it the way you'd review a coworker's pull request: what's this doing, why this approach, what happens on the edge cases. Where you can't answer — that's not a failure, that's the actual list of things to learn next, now concrete instead of a vague feeling.
Step 4 — Rewrite selectively, not wholesale
You don't need to rewrite a working app. You need to understand it and, where something looks genuinely fragile once you actually read it, replace that specific piece with something you wrote and can defend. Most of a vibe-coded project doesn't need this. The 10-20% that touches money, auth, or user data usually does.
Step 5 — Change how the next feature gets built
None of this matters much if the next feature goes in exactly the same way. Going forward: plan the approach yourself first, use AI to accelerate the typing, and read every diff before it's yours. Same tools, different relationship to them — that's the actual fix, not avoiding AI on the next feature entirely.
What this doesn't require
You don't need to understand every line before you ship again. You don't need to feel guilty about how you got here — plenty of working software has murkier origins than a vibe-coded weekend project, and nobody's checking your process, just your outcomes. What you actually need is to know, specifically, which parts of your own project you can defend and which parts you're currently just trusting.
If you want a structured way to work through exactly this — auditing what you've already shipped, not just building new habits — that's close to what a future version of our GitHub-connected Code Health Report is aimed at. Not live yet, but if this is the exact problem you have, let us know — it's actively being scoped.
In the meantime, the same underlying skills (reading unfamiliar code, debugging without a chat window, understanding before shipping) are what the 30-day Rehab program rebuilds directly.
Related reading: if this resonated but you're not sure how deep the pattern goes, AI Coding Addiction Symptoms is a quick way to check. If it's less about one project and more your general workflow, How to Quit Vibe Coding is the broader version of this.