We build systems
that check
their own work.

We build AI agent systems, and hardware, and everything we ship comes with the test that proves it works.

Not a demo and an adjective. A deterministic gate, agreed in writing before the build, that returns pass or fail with a measured value — and keeps running after we hand it over.

cadagent.reviewHC-01 rev G
Review gate results for HC-01 rev G, produced by cadagent.review
G1envelope fits build volumePASS
G2wall ≥ 1.6 mm at every facePASS
G3SHT40 intake ≥ 105 mm²measured 82 mm²FAIL
G4lid clears full swingPASS
G5every part has a dimension sourcePASS
verdictFAIL4 of 5 gates

One of our own review gates: five assertions on an enclosure design, one failed on a measured value. Every engagement ships with one of these.

We built three of these before selling one.

Each runs in production for our own work. Each has a review engine that can fail it. The last one has never passed anything, which is the point.

Hardware design pipeline

7 agents

Takes a parts list and functional intent, returns a fab-ready 2-layer PCB, a printable enclosure fitted to it, and ESP-IDF firmware wired to the board's own pinout.

Every part must cite a real dimension source — a STEP file, a datasheet, or calipers. Guessed dimensions fail the build.

Video delivery pipeline

3 agents

One 360° master in, six publishable cuts out, unattended: it claims a job from a queue, plans the camera moves, renders, checks its own output, then publishes.

The check measures whether the vertical cut was framed independently — a centre-crop of the widescreen fails, even though it looks fine.

Product research pipeline

5 agents

Researches a market, prices a product against its real page-one competition, and recomputes the margin from cost inputs rather than trusting the claim.

Nine deterministic gates. Across seven cycles it passed nothing — 39 candidates killed, each with the measured reason it failed.

Start a project

Tell us what you're building.

We'll get back within one business day on whether it's a fit and what it would cost. Or book a 15-min chat.

What you share is kept confidential. NDA on request.

Prefer email? hello@byitl.com

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