01Watch
it watches every run
and checks what really happened
Traces from your agent. Outcomes from your systems.
We watch your agent work, find what keeps failing, and ship tested upgrades to its harness.
the harness is everything around your model.
it’s the part we improve.
Works with agents built on
Why the harness
Your agent is more than a model. It runs inside a harness of prompts, tools, examples and checks. That’s where we work: we find what keeps failing, fix it, and prove each fix before you see it.
How it works
01Watch
Traces from your agent. Outcomes from your systems.
02Group
Every failed task joins a failure mode.
03Rewrite
Prompts, tool descriptions, examples, validators, retries.
04Test
In a sandbox. If anything breaks, it never reaches you.
05Ship
5% of sessions, then 25%, then everyone.
Your call
Approve it here, or take it as a file.
A real fix from our demo refund agent.
Results
On our demo refund agent, with defects we planted on purpose.
Unneeded approvals
Valid refunds issued
Bad changes let through
Security
Personal details removed before any model sees them.
Raw data encrypted with a key used only for your company.
Stored on AWS in Ohio. Never used for training.
Erased everywhere within 30 days.
Your agent’s key sends data. It can’t read results.
Every session back on one version in seconds.
Python SDK or a JSONL import. Your model stays as it is.