sg.dist
zero station
The site was built at all: the deploy folder has pages. Otherwise every other gate would be staring at nothing.
- traps
- 1
sitegen · gate self-test
Every mistake drops into its own tray
63 trap pages roll past 24 stations of a site pipeline. 42 must drop exactly where the test says, 21 clean ones must reach the finish. Each marble's route comes from a file, not from chance.
gold marble: a trap, must droppearl marble: clean, must passbrass token: the first of two gates also caught itTap a tray to see what it guards.
Stations
Twenty-four stops for one page: 23 pipeline gates and a zero station that asks whether the site was built at all. The order is the one the pipeline runs them in.
sg.html
The page skeleton: language, hreflang, icon, a poster for scroll video.
- traps
- 4
- lessons
- 7
- checks in the log
- 4 693
sg.csp
The security policy matches what is really embedded in the page, with no foreign hosts.
- traps
- 3
- lessons
- 3
- checks in the log
- 4 789
sg.cache
Long cache only for files with a fingerprint in the name, or visitors get an old version.
- traps
- 1
- lessons
- 1
- checks in the log
- 21 574
sg.safari
What breaks only in Safari: height jumps, glass, picking a phone by touch rather than width.
- traps
- 4
- lessons
- 12
- checks in the log
- 7 120
sg.files
Nothing extra gets deployed: sources, secrets, heavy uncompressed 3D models.
- traps
- 2
- lessons
- 5
- checks in the log
- 23 767
sg.js
Every module is syntactically whole. One broken file switches off the whole site.
- traps
- 1
- lessons
- 2
- checks in the log
- 1 061
sg.i18n
Identical dictionary keys and the right letters in the font, including the Ukrainian ones.
- traps
- 1
- lessons
- 4
- checks in the log
- 1 671
sg.seo
For search: distinct titles, h1, alt, full addresses, an open robots.txt.
- traps
- 3
- lessons
- 2
- checks in the log
- 3 508
sg.geo
For AI search: complete business data, markup that matches visible text, llms.txt pointing at live pages.
- traps
- 2
- lessons
- 2
- checks in the log
- 3 508
sg.layout
Nothing sticks out at any width, the page is not blank, an iPad does not get the phone layout.
- traps
- 4
- lessons
- 10
- checks in the log
- 9 410
sg.console
No errors in the browser console.
- traps
- 1
- lessons
- 1
- checks in the log
- 2 390
sg.motion
With reduced motion on, nothing spins forever.
- traps
- 1
- lessons
- 1
- checks in the log
- 614
sg.touch
A rail swipes under the finger, and a live first screen is alive without a cursor.
- traps
- 2
- lessons
- 4
- checks in the log
- 352
sg.hold
A press-and-hold action shows progress and also fires on a plain tap.
- traps
- 1
- lessons
- 1
- checks in the log
- 680
sg.go
The request button works even if the data has not arrived.
- traps
- 1
- lessons
- 1
- checks in the log
- 13
sg.nogpu
No exceptions without a graphics card, and the page stays whole.
No trap of its own
- traps
- 0
- lessons
- 2
- checks in the log
- 213
sg.sticky
A sticky panel is no taller than the window and does not ride over text outside it.
- traps
- 1
- lessons
- 1
- checks in the log
- 1 476
sg.lang
Everything visible is translated: embedded frames, SVG, labels. No Cyrillic on the English page.
- traps
- 3
- lessons
- 3
- checks in the log
- 664
sg.slow
On a slow network there are no broken images, and a character does not cover the controls.
- traps
- 3
- lessons
- 1
- checks in the log
- 502
sg.webkit
The Safari engine on iPad and iPhone: glass, security policy errors, scroll video states.
- traps
- 3
- lessons
- 6
- checks in the log
- 1 023
sg.media
Video is served in ranges, with no torn seam in the loop.
No trap of its own
- traps
- 0
- lessons
- 2
- checks in the log
- 620
sg.lh
Lighthouse speed on a phone, with compression as on Cloudflare.
No trap of its own
- traps
- 0
- lessons
- 13
- checks in the log
- 732
sg.a11y
WCAG 2.1 AA accessibility: keyboard, contrast, focus. Enabled by the site's contract.
- traps
- 1
- lessons
- 1
- checks in the log
- 0
Marbles
The names are real, from tests/fixtures.mjs. Tap a marble to see what is broken in that page and release it alone.
They drop: broken on purpose 42
sg.dist
sg.html
sg.csp
sg.cache
sg.safari
sg.files
sg.js
sg.i18n
sg.seo
sg.geo
sg.layout
sg.console
sg.motion
sg.touch
sg.hold
sg.go
sg.sticky
sg.lang
sg.slow
sg.webkit
sg.a11y
They pass: look like a mistake, but are legal 21
These pages catch false alarms. If a gate stops one of them, the self-test goes red.
Why a machine
A mistake becomes a part
A bug found on any site is never quietly patched. It becomes a lesson, then a trap page, then a check. There are 94 lessons so far. The trap lives next to the check, so the check cannot forget what it was meant to catch.
Clean marbles matter as much
A gate that stops everything is broken too. So 21 of the 63 pages are legal: a rail that sits off-screen on purpose, a proper name left untranslated. They have to roll through.
The empty trays are real
sg.nogpu, sg.media and sg.lh have no trap of their own in the self-test, though the log shows they ran. The machine does not hide it: the tray stands empty.
What is a model here
The rails, hinges, glass and collisions are drawn for clarity. The real self-test runs each trap only through its own gates, not through all of them in a row. Routes, trays and counters come from the files unchanged.
Pipeline log as of 4 November 2026
- 160
- deployments
- 55
- projects
- 90 380
- gate checks
- 62
- sites in the portfolio
The same on every device
A physics engine written for this page: a step of 1/120 s, nothing but addition, multiplication, division and a square root. At build time the same machine runs on the server and records a signature of its end state. After a full run your browser compares its own. If a marble lands in the wrong tray at build time, the site does not build.
- build signature for this layout
- 2aa4870d
- your browser
- wait for the run to end
The sites that passed these gates
The portfolio holds 62 sites from the pipeline. Open any of them and check.