In June 2026, Loop Engineering swept through the entire AI engineering community. Peter Steinberger's tweet with 6.5 million views, Boris Cherny's "I no longer prompt Claude, I write loops," Addy Osmani's official naming — three people, two weeks, one concept from the fringe to the center. But concepts are concepts. When you actually want to implement Loop Engineering, you discover an awkward reality: There isn't a single tool on the market that lets you build a production-grade Loop without wri