Something is shifting in the quiet.
KerrShift is an applied intelligence lab. We build the instruments that let autonomous software be trusted—and a few things we can't talk about yet.
01 — Work
One in the open. The rest, soon.
We ship small, sharp tools and let them earn their place. Here's what's out, and what's coming.
AgentDiff↗
Tests check the answer. AgentDiff checks the path. It catches runaway loops, silent drift and cost spikes in your agents before they reach a customer.
Ergosphere
For systems that keep running long after you stop watching.
Penrose
Extracting more from the models you already have.
Horizon
A way to see what your software is actually doing.
02 — Focus
Where we spend our attention.
Four threads run through everything we make. Every product starts as an experiment in one of them.
Verification
Knowing an autonomous system did the right thing, the right way.
Autonomy
Software that plans, acts and recovers without being asked twice.
Interfaces
New surfaces for working alongside machines that reason.
Infrastructure
The quiet plumbing that makes all of it hold up at scale.
The next era of software won't be written line by line. It will besteered.
We're building the instruments.
03 — Principles
How we work.
- 01
Built to endure
No brittle prototypes. Everything we ship is typed, tested and ready for real load from the first day.
- 02
Agents in the loop
We use autonomous workflows on ourselves first. Cycles that took quarters now take weeks.
- 03
Nothing extra
Few dependencies, fast responses, small surface area. Software that feels instant and stays maintainable.
04 — Contact
Let's build together.
Alongside our own products, we partner with a small number of founders and teams to design and ship AI systems, developer tools and production web apps.