# Why my Chrome extension uses a hybrid AI risk score instead of pure AI sorting

> Source: <https://dev.to/projekta2/why-my-chrome-extension-uses-a-hybrid-ai-risk-score-instead-of-pure-ai-sorting-4lfo>
> Published: 2026-06-21 10:02:12+00:00

I've been building [PR Focus](https://github.com/projekta2/pr-focus-landing), a Chrome extension that helps developers triage GitHub pull requests. One of the first decisions I had to make was: **how do I actually sort PRs by priority?**

The obvious answer is "use AI to score the risk". But I didn't want to rely 100% on an LLM because:

So I built a **hybrid** system: deterministic signals (CI status + PR age) form the floor, and the AI risk score is a tiebreaker on top. Failing CI always floats to the top, regardless of what the AI says.

I wrote up the full decision, including the trade-offs and what it cost, in my new [Build Logs repo](https://github.com/projekta2/build-logs).

If you're building dev tools or wrestling with AI reliability, the full log might be useful:

🔗 [Why PR risk scoring is a hybrid, not a pure AI verdict](https://github.com/projekta2/build-logs/blob/main/001-pr-focus-risk-scoring.md)