# Kurosyss

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Kuro sys](https://cerebralvalley.ai/u/kurosyss)
- **GitHub:** https://github.com/Kurosyss/ReplaySpec
- **Demo video:** https://youtu.be/k4639XEHpeI
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3016

ReplaySpec turns a browser bug recording into an inspectable investigation and a repeatable regression check.

It converts recordings into timestamped frames, links observations to the frames that support them, and keeps observed behavior separate from expected behavior, hypotheses, and ambiguity. A constrained Playwright check then runs in Chromium and reports an inspectable verdict.

The prototype includes three checkout, cart, and modal scenarios. In the cart race, two quick increment clicks should change the quantity from 1 to 3; the buggy version loses a click, while the fixed version reaches 3.

Optional image analysis uses Meta Llama 4 Maverick through OpenRouter to suggest structured evidence from selected frames. The application validates these suggestions and keeps them separate from observations; the browser check determines the verdict.

This is a local prototype with bundled demo routes and file-backed storage. It does not run tests on arbitrary websites, provide hosted accounts, or process real payments.

## More from Meta Global AI Developer Hackathon

- [DLA](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3013)
- [Rixon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3014)
- [Infsol.gg](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3015)
- [VibeForge](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3017)
- [Agent SI](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3018)
- [Agent Reliability Cockpit](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3019)

---

Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3016. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt