AI Hamsters Engineering: Circling Your Way to Success

Every AI engineer knows the loop — prompt tweaks, evals, regressions, repeat. It feels like going in circles. But that’s not the problem. The problem is not knowing if each circle is tighter than the last. This talk is about how Langfuse turns iteration from an act of faith into something measurable — traces, scores, and evals that tell you whether you’re actually moving forward or just staying busy.

But the loop isn’t just for the developer anymore. Tools like Cursor and Claude Code can tap into Langfuse mid-build, check whether recent changes moved things in the right direction, and keep iterating without waiting on you. The feedback loop becomes part of the development process itself — and that’s when the wheel really starts to spin.