I shipped two frontend libraries in one day using AI agents

Today I ended up publishing two small libraries. Wasn't really planned. I just wanted to try using AI agents seriously and see how far I could push it in one day. By the evening both were on npm and GitHub, which still feels a bit strange. These are the two things. Effects demo: https://libs.protohiro.com/effects/ https://github.com/protohiro-com/effects npm install @protohiro/effects This one is basically a collection of CSS effects for React. Things like: gradient borders glow noise overlays The main thing I cared about was not adding extra DOM elements. I always found it annoying when an effect meant wrapping components in extra divs. That tends to break layouts sooner or later. So the idea here is just: const ref = useGlowEffect({ color: "#3b82f6", blur: 20 }) return <div ref={ref}>Card</div> Nothing fancy really. Just reusable CSS packaged as hooks. I mostly built it because I kept rewriting the same stuff in different projects. CSS tokens extractor https://github.com/protohiro-co