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About
ThruLine checks what your AI coding agent said against what actually ran. One engineer builds it, and the same person answers your email.
An AI coding agent said “done”. It was not.
The reviewers of the day read the diff — the lines of code that changed. They did not read the claim: what the agent said it had done.
ThruLine reads the claim, and checks it against what actually ran, on the exact version — the commit — you are about to approve.
Below is a different claim, from ThruLine’s checkout-web demo record, and where its proof stops.
Proof stops here
Nothing on e71c5b0 has run with checkout/api.py in scope.
ThruLine is built against its own development record, and holds itself to the same rules it applies to yours.
Every fact on screen traces to a line in your own session logs: the file, and the line in it. The record is only ever added to, never edited, and it is hash-chained — each entry carries a fingerprint of the one before, so a changed byte breaks the chain. Security sets out what stays on your machine.
When nothing in the record backs a claim, ThruLine says so, in exactly those words. “Not proven” is not “broken”: the claim may be entirely true.
Where the record is ambiguous, ThruLine does not guess and does not accuse: it says nothing. The verdict path is deterministic — the same record always gives the same answer — and no model decides it.
RAAS Labs, LLC, a US company, sells ThruLine. Open to beta users. Built by one engineer.
Every email is answered by the person who built ThruLine, within one business day.
(Not a bot, not a queue.)
Write from the Contact page, or to support@thrulinehq.com.