We open-sourced the small checker we use to stop "done" claims we can't back up

We kept hitting the same failure shape in file-based agent workflows: an

update says "done," and there's nothing behind it — no artifact, no check

that ran, nothing you could point to later. Not malicious, just a gap

between "acknowledged the request" and "proved the work."

So we pulled the smallest possible piece of our own internal tooling out