Findings on the drawing.
Each finding is marked on the sheet itself, where the engineer is already looking. An exported report was built first and set aside: a deliverable that is not where people work is not delivered.
Case study · Our own product
Redline.
Designed around the engineer.
AI-assisted drawing review for licensed engineers, designed, built, and operated by Tradewind.
Redline is our product, not client work. We show it here because it is our approach under real conditions: a specialist field, a professional who carries the responsibility, and software that has to earn their trust.
Visit RedlineThe situation
Expert review.
Expert responsibility.
Before a drawing set goes out, an engineer reviews it sheet by sheet for coordination issues, missing information, and code questions. The work is detailed and repetitive, and the engineer remains responsible for what is issued.
General AI tools give confident answers with no way to check them. In a field where the engineer carries the responsibility, an answer you cannot verify is not useful.
The design principle
It drafts.
The engineer decides.
Every design decision followed from one rule: make the review faster to inspect, and never take the judgment away from the person who is responsible for it.
What we built.
Clear enough to trust.
Fast enough to use.
Evidence you can check.
Every finding quotes the text it came from on the drawing, so the engineer can confirm it in seconds instead of taking it on trust.
Every page accounted for.
Each review states which pages were read. A page that could not be reviewed is shown as a gap, never passed over in silence.
The decision stays with the engineer.
Findings arrive as proposals with their reasoning and a confidence rating. Nothing reaches the final set unless the engineer accepts it.
What it taught us.
Lessons we bring
to every engagement.
Build where the work happens.
The most useful version of a feature is the one inside the screen people already use, not a file they have to go and open.
Show the work.
Trust came from evidence on the page, not from accuracy claims. People adopt what they can check.
Measure before changing.
Quality was tracked against real drawing sets before and after each change, so improvements were measured, not assumed.
Redline has been commercially available since August 2026. Customer-specific results will be published only with written permission.
Your business.
The same approach,
built around your work.
Specialist knowledge, a responsible person, and a decision that matters. If that describes the work your business runs on, we should talk.
Start a conversation See more examples in practice