Boring by design
No surprise deprecations. Every API is versioned and every change lands in the changelog first.
— Why we exist
A tool call times out. A provider changes a default. A prompt edit quietly drops the pass rate by six points. None of it shows up until a customer writes in.
We think the fix is the same one backend engineering found a decade ago: traces, gates and a control plane you can actually read. Kestral is that layer, built for agents from the first commit.
— How we work