Vibe code cleanup is measuring the fallacious factor


The speedy adoption of vibe coding has laid the inspiration for a brand new market: vibe code cleanup. As a result of it’s an rising market, there’s lots to unpack right here. How can we strategy the cleanup course of? Can we use AI to assist, or does that defeat the aim? And crucially, how can we measure the success of a cleanup undertaking? ​

Why slicing the code is just not the reply

Ask any skilled developer, they usually’ll agree that readable, maintainable, dependable, and environment friendly code is the other of code sprawl. AI-generated code is a significant contributor to this uncontrolled sprawl as a result of code duplication is essentially the most widespread challenge present in vibe-coded apps. AI coding brokers maintain including code with out consolidation, particularly when correct restrictions and critiques are absent. You possibly can usually see the identical logic with very slight variations throughout completely different parts.

It appears logical to prune as a lot as attainable to attain the specified code high quality. Chances are you’ll encounter engineers who provide to refactor vibe-coded codebases by decreasing them from “one thing like 100,000 strains all the way down to 35,000, similar performance.” On prime of that, their engagement mannequin is closely tied to code discount alone: the extra code they take away, the extra they cost.  

However a smaller repository can nonetheless include conflicting enterprise logic, hardcoded credentials, unsafe dependencies, lacking checks, and no rollback path. Code discount is a lovely however deceptive metric. ​

What it is best to measure as a substitute

You possibly can present a consumer that their repository shrank by 40 %. It looks like progress as a result of it’s measurable and directional: fewer strains, fewer issues. This logic assumes the harmful code was the code you deleted, and that the code you saved is secure. Neither assumption holds up when you take a look at what truly goes fallacious in vibe-coded functions.

Not too long ago, whereas serving to a consumer launch vibe-coded options safely, we examined their app’s pricing funnel and noticed a superbly rendered checklist of paid plans. Beneath that polished exterior, nevertheless, two separate parts have been fetching that knowledge independently. This created an enormous vulnerability: updating a plan in a single place didn’t propagate to the opposite, destroying the one supply of fact and leaving the applying with conflicting data. Shrinking the codebase by deleting unused CSS or redundant boilerplate doesn’t inherently repair this sort of architectural rot.

Or take routing. On the identical undertaking, 13 routes, some nested, all rendered the appropriate pages in the appropriate sequence. The consumer movement labored precisely as designed. However there have been zero route guards. Any customer might navigate on to the billing web page with out creating an account. This isn’t sloppy code a linter would flag; it’s a lacking safety idea. An AI agent that generates a functioning route construction doesn’t robotically generate the authorization logic that ought to govern entry. You might consolidate each route handler, lower the file in half, and this hole would stay vast open.

Then there are types. We reviewed an software the place each type appeared polished, had validation guidelines, and dealt with submissions appropriately. However the markup had no semantic type parts. The inputs have been styled containers with JavaScript occasion handlers. For a sighted consumer with a mouse, the whole lot labored. For somebody counting on a display screen reader, the applying couldn’t talk which enter had focus, which type it belonged to, or the right way to submit it. This can be a WCAG 2.2 failure that’s fully invisible to code discount metrics. 

Can AI repair AI?

With 83% of builders utilizing AI instruments, how is the way in which they use them completely different from how non-developers produce code? 

For one, there’s a nice divide between the vibe coding instruments builders use versus these favored by non-coders. Cursor and Codex will not be the identical as Replit or Lovable. Can’t founders maintain prompting to troubleshoot and repair points? They will, however finally, the method turns into too tedious, and the chance of a whole rewrite quite than a cleanup solely will increase. 

Can we use AI coding brokers to scrub up the generated code? Sure, however largely to verify compliance with undertaking pointers as a primary step, search for overengineering and pointless complexity, and scan for attainable safety leaks because the final step.

When a vibe-coded function is actually mounted

Once we deal with AI code cleanup as a easy refactoring activity centered on discount, we ignore the applying’s structural integrity. Extra importantly, charging for deleted strains of code contradicts the basic actuality of how production-ready software program is constructed. It creates a perpetual treadmill: a non-technical founder pays to trim the primary construct, however the second they want a brand new function, the AI generates extra bloated code, they usually need to pay for one more spherical of deletion.

Even when the function set is frozen, you can not merely delete code, stroll away, and count on the applying to outlive. Software program not often lasts six months with out upkeep. Third-party APIs replace, new working programs are launched, and shoppers undertake units with solely completely different display screen resolutions. Escaping this cycle requires an precise software program growth course of constructed on self-discipline, clear specs, structured launch cycles, and deep high quality assurance.

If deleted strains of code are the fallacious metric, we want a brand new definition of what it means for a vibe-coded function to be “mounted.” Fastened ought to imply essential habits is totally understood, rigorously examined, secured towards exploitation, and maintainable by the following engineering staff that inherits it.

Enterprise worth have to be the final word measure of success, not a vendor’s bill tied to a smaller file dimension. If an AI device is great at scaffolding and creating prototypes, we must always use it for precisely that. However relating to manufacturing readiness, don’t simply pay to shrink your AI slop. Pay to know it, safe it, and implement the engineering self-discipline required to maintain it alive.

SD Instances Q&A
What metrics ought to I exploit to guage vibe code cleanup high quality?

Traces-of-code discount is an unreliable proxy for code high quality after vibe coding. Higher metrics embrace elimination of duplicate data-fetching logic, presence of route guards and authorization checks, WCAG accessibility compliance, check protection on essential enterprise flows, and absence of hardcoded credentials or unsafe dependencies. Enterprise worth delivered and maintainability by the following engineering staff are the final word benchmarks.

What are the commonest safety points in vibe-coded functions?

Widespread safety points embrace lacking route guards that enable unauthenticated entry to protected pages, hardcoded credentials embedded in supply code, unsafe third-party dependencies, and no rollback path for failed deployments. These gaps are architectural in nature and won’t be resolved by merely decreasing the variety of strains of code.

Can AI instruments repair AI-generated code robotically?

AI coding brokers can help with cleanup duties corresponding to checking compliance with undertaking pointers, figuring out overengineering, and scanning for safety leaks. Nevertheless, they can’t reliably resolve architectural issues like conflicting enterprise logic, lacking authorization layers, or accessibility failures with out human architectural evaluation.

What’s the distinction between vibe coding instruments utilized by builders vs. non-developers?

Developer-oriented instruments corresponding to Cursor and OpenAI Codex provide tighter integration with present codebases, model management, and engineering workflows. Instruments common with non-technical founders, corresponding to Replit and Lovable, prioritize speedy scaffolding and UI era. The ensuing code from the latter class usually requires extra structural remediation earlier than it’s production-ready.

When is vibe-coded code truly production-ready?

Vibe-coded code is production-ready when essential habits is totally understood, coated by rigorous checks, secured towards identified exploits, and documented nicely sufficient for an incoming engineering staff to take care of it. It additionally requires a repeatable software program growth course of with clear specs, structured launch cycles, and high quality assurance gates — not only a diminished line depend.

Konstantin Klyagin

About Konstantin Klyagin

Konstantin Klyagin is the founding father of software program growth firm Redwerk and testing agency QAwerk. He brings over 20 years of hands-on engineering and management expertise to software program groups worldwide.

View all posts by Konstantin Klyagin →

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