Penling

Spec-driven development has the right idea and the wrong timing. Every tool out there - Spec Kit, Kiro, the rest - puts spec-writing in front of one engineer, at the keyboard, right as they're about to build. Penling flips this approach and uses generative AI from the start of your project all the way through the lifecycle to a reviewable PR containing tested work and a fully documented build specification that your whole team agreed on.