Our AI Vibe Code audit gives you clarity on the security, stability, and architecture of your AI-built product, so you understand the risks under the hood before they surprise you.
Test ideas. Get users. Prove demand. Raise money earlier.
That’s brilliant.
We’re big fans of building fast.
But even the best AI tools can’t see what happens when your product meets real-world load, real users, and real complexity.
That’s where Old.St steps in, not to replace AI or rebuild your product.
But to give you a clear, honest view of what you’ve already built.
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AI gets you moving.
Old.St helps you see clearly.
We combine automated AI analysis with experienced engineers who know how production software actually fails, and how to spot problems early.
This isn’t about perfection.
It’s about visibility.
It’s not AI or humans.
It’s AI and humans, working together to give you clarity.
No judgement.
Just people who love building great products with you.
Your structured, friendly health check, built for AI coded products.
Typical duration: 1 week from kickoff to final call
1
30 mins
A relaxed chat to understand your product, worries, and goals.
We agree access and scope so we only look at what matters.
2
3 to 5 days
AI + human review of your codebase, database, and deployment setup. We assess your product across Protect, Prepare, Polish.
3
A clear, non-technical report that documents what we found, how serious each issue is (Red, Amber, Green), and what good practice looks like in each area.
4
30 mins
We walk you through everything, answer questions, and help you decide what to fix now vs later.
You'll get a simple dashboard showing where you stand
An issue that presents a clear and immediate risk to customers, data, revenue, or credibility.
An issue that isn’t causing damage today, but is likely to cause problems as usage, complexity, or expectations increase.
An area that is broadly sound and not a blocker to growth or stability.
Old Street conducted a code audit on my app and I am ever so grateful for the thorough job that they did. Founders of software companies have a tremendous moral and legal obligation to make sure that their code keeps users safe, secure and that the functionality is robust. The Old Street team have detailed knowledge that they deployed to thoroughly vet the platform, and the report that they produced for me was comprehensive, clear and thorough.
I wholeheartedly recommend that anyone with a software platform should get their code audited by Old Street, it has been a tremendous opportunity for us to gain confidence in some areas, and deploy improvement in others.
Get your confidence in your product's security, scalability, maintainability
A Vibe Code Audit is a structured review of a product that has been built using AI or vibe coding tools. It helps founders understand what they’ve actually built by assessing risk, robustness, and overall code quality, without changing or fixing the code.
The audit is designed for non technical founders who have used AI to build a working product and are about to get real users, customers, or investor scrutiny. If you’ve moved fast but want clarity and confidence before going further, it’s a good fit.
No. This is strictly an audit. We review, assess, and explain what we find, but we don’t make changes to your codebase or infrastructure as part of the Vibe Code Audit.
No. The Vibe Code Audit is a high-level diagnostic, not a full line-by-line code audit or a launch-readiness guarantee. It’s designed to help non-technical founders understand what they’ve built and identify the major risks and strengths in their codebase. We focus on the big signals like structure, security posture, and maintainability, rather than every individual line of code.
Use it for clarity and confidence, not as a substitute for ongoing development or technical decision-making.
We look for things like:
All findings are explained in plain English.
No. The audit works for products that are mostly AI generated, partially AI generated, or AI assisted. The key factor is uncertainty. If you didn’t fully write or design the system yourself and want clarity, the audit is relevant.
The audit doesn’t make a “ready to scale” judgement. Instead, it shows you what’s solid, what’s fragile, and what risks exist today, so you can decide if and when scaling makes sense.
The report is written for non technical founders.
There’s no jargon, no assumption of engineering knowledge, and no expectation that you need to “translate” the findings. Everything is explained in clear, practical language.
Most audits take around one week from kickoff call to final walkthrough. The exact timing depends on the size and complexity of the product, but the goal is to deliver clarity quickly.
Yes. Founders often use the audit to better answer questions about technical risk, security, and maintainability when speaking to investors, advisors, or early hires. It helps replace vague answers with informed ones.
You’ll receive a clear report and scorecard showing:
You’ll also get a walkthrough call so you fully understand the findings.
This is a beta service and it is provided as-is without any warranty as to accuracy or suitability for any purpose.
Drop us a line
hello@old.stLet's have a chat
+44 (0)20 3576 2169
Old.st Labs
13 Devonshire Gardens,
London, W4 3TN
1
Is my business and user data safe?
We run AI-assisted scans and human checks to spot risks early, including:
We explain everything in simple, grounded language.
You’ll know what’s urgent, what’s fine, and how to fix the rest.
Is my business and user data safe?
We run AI assisted scans and human checks to spot risks early, including:
We explain everything in simple, grounded language.
You’ll know what’s urgent, what’s fine, and how to fix the rest.
Are my systems ready to grow?
Your AI built MVP got you traction.
Now we assess whether the foundations can support what’s next.
We look at:
This is the bridge between “it works” and “it works when things get busy”.
Is everything maintainable, clear, and buildable?
Even strong AI generated code can use tidying.
We review:
A little polish today means a smoother, faster roadmap tomorrow.