VibeSniffer started as a joke in our Discord. Someone said "I wish I could just scan a website and know if it's giving off good vibes." We laughed. Then we thought about it. Then we built it.
The 72-Hour Timeline
Friday evening: Idea crystallized. We mapped out the core feature — paste a URL, get a vibe report. Simple.
Saturday morning: Scaffolded the Next.js app, set up the AI pipeline. We used Claude for analysis and a custom scoring algorithm for the vibe metrics.
Saturday afternoon: Built the report generation engine. Each scan analyzes design quality, copy clarity, technical health, and overall coherence.
Sunday morning: Frontend polish. Dark theme, smooth animations, the whole aesthetic.
Sunday evening: Deployed to Vercel. Shared the link. First 100 scans happened within 2 hours.
What Worked
- AI-first development: Claude wrote about 60% of the initial codebase. We focused on architecture decisions and UX polish.
- Scope discipline: We cut features ruthlessly. V1 does one thing: scan a URL and give a report. No accounts, no history, no dashboards.
- Ship first, polish later: The first version had rough edges. We shipped anyway. Real users give better feedback than hypothetical users.
What Almost Broke
The URL parsing was a nightmare. Turns out websites are weird. Some redirect infinitely, some serve different content based on headers, some are just broken HTML wrapped in JavaScript frameworks.
We spent 4 hours on URL handling alone. If we did it again, we'd use a headless browser from the start instead of trying to be clever with fetch.
The Numbers (First Week)
- 2,847 scans completed
- 342 unique users
- 42 paying customers at $4.99
- $209.58 in revenue
Not life-changing money. But proof that people want this. And proof that you can go from idea to revenue in a weekend if you stop overthinking and start building.
Since launch, VibeSniffer has evolved into a full AI code security scanner — read about the [7 security risks in AI-generated code](/blog/ai-code-security-2026) we keep finding. And if you're curious which [AI coding tools actually work](/blog/best-ai-coding-tools), we tested them all.
That's the WolfPack way. 🐺
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