Executive Summary
Vibe coding — building software by handing most of the code-writing over to an AI assistant, guided by intuition and trial-and-error more than deliberate technical design — has radically lowered the barrier to producing a first product version. That accessibility has real value: it lets even people without a development background validate an idea fast. But that same mechanism, without an architecture review at some point in the process, can generate technical debt that stays invisible until the product needs to scale.
This paper examines a concrete case: a digital education product whose frontend had been built entirely through vibe coding by a Project Manager without a developer background, using Claude Code as the assistant. The result was a monolithic file with more than 6,000 lines of code — functional on the surface, but unstable, slow, and hard to maintain the moment the product needed to move into a testing phase with real users.
Mindtech’s team took technical ownership of that layer and carried out an incremental refactor, turning the monolith into a modular component architecture, without interrupting the product’s active testing phase.
The full migration was completed in 4 weeks — against an internal estimate of roughly 4 months had it been approached without a deliberate, architecture-led use of AI assistants.
The central takeaway from this case extends beyond the specific project: vibe coding isn’t, by itself, a risk — the risk shows up when it’s used without anyone who understands software architecture fundamentals auditing the result before the product scales. Used with that judgment, the same type of tool that generated the original problem is also what made it possible to fix it four times faster.
The strategic learning this case leaves for other technical teams is that an architecture review isn’t an optional step when using vibe coding:
It’s the difference between a product accelerator — capable of turning months into weeks when directed by technical judgment — and a risk that gets pushed forward, invisibly, to the exact moment the product needs stability most.
Paper – Vibe Coding Ternium.pdf