# How We Built an Instant AI Security & Code Auditor in Next.js & Convex

> Source: <https://dev.to/kientndev/how-we-built-an-instant-ai-security-code-auditor-in-nextjs-convex-i9i>
> Published: 2026-08-14 03:07:44+00:00

When building security or code auditing tools, **speed is everything**. Developers won't wait 45 seconds for a bloated PDF report—they want instant feedback on potential bugs, security leaks, or bad practices.

Over the last week, we've been building **BugZ AI**, a lightweight scanner designed to analyze code repos and security links in under **5 seconds**.

Here is a breakdown of our stack and the architecture choices behind keeping real-time scans ultra-fast.

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Build in Public Update:We hit175 total developer visitstoday on Day 4 of building out in the open!

The biggest challenge was stream handling. Instead of waiting for the entire LLM response to complete before rendering analysis to the UI, we used Convex's real-time mutations paired with edge streaming.

This lets the user paste a link or snippet and see initial vulnerability checks pop up in real-time within **< 20 seconds**.

If you want to run a quick audit on your project or test a link, check out the live demo here: **[INSERT YOUR BUGZ AI LINK HERE]**

I'd love to hear your feedback on the scanning speed and response accuracy. What features would make this a daily part of your dev workflow?