ThenStack
Source
What changed?
Source control, rethought for a world where agents author much of the change.
Details at launch
Three questions every team asks of its codebase. Today's tools answer the first. ThenStack is being built to answer all three — for software written by people and agents together.
A developer works through a problem, talks it over in a thread, makes a call, notices something unrelated, and moves on. An agent does the same in a session that ends. Either way, what's left is a diff and a one-line message.
Agents didn't create this gap. They made it wider, and faster.
Source control, rethought for a world where agents author much of the change.
The asks, decisions, and discoveries behind every change — kept, not lost.
A living register of what remains — produced by the work, not filed against it.
Git solved an enormous problem for its era. So did the issue tracker. The question now is a different one: if AI changes how software is built, what should the infrastructure underneath it look like?
That's the question we're answering.
We're heads-down for now. Leave your email and you'll hear from us before anyone else when we're ready to say more.