About Shellcaster

We built Shellcaster to build our own product faster. Building TextJam — a multiplayer word processor reinvented for the AI era — meant driving coding agents all day, every day. That demanded a faster way to see what the agents were doing, point at exactly what we meant, and keep a dozen shells moving at once. So we built ourselves Shellcaster.

It changed how fast we could ship — too useful to keep to ourselves. Shellcaster is now in beta, polished for everyone who drives their agents the way we do, and dogfooded daily: it builds TextJam, and it builds Shellcaster itself.