🔍 Read the full analysis: Gewerkton Rebuilds Its Whole Look With AI Agents—In Two Days on ThorstenMeyerAI.com
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TL;DR
Gewerkton says AI coding agents implemented its HORIZON redesign across its web and phone apps, Studio, icons and multilingual website on Oct. 2–3, 2026. The company’s founder approved plans and releases, while testing and visual review found problems that required fixes; the stated two-day period began with an earlier design draft already in hand.
Gewerkton, a construction-site documentation tool, says it replaced the look of its web app, iPhone and Android apps, Studio, 26 icons and multilingual website with a design called HORIZON over Oct. 2–3, 2026. The company says AI coding agents carried out the implementation from written plans, while founder Thorsten Meyer approved the plans, reviewed the results and released each stage.
The company reports that the update covered 529 website pages in 40 languages, alongside the web and phone apps and Studio. In the web app, it moved 281 hard-coded colour values to design tokens, retained 11 deliberate exceptions and restyled 47 cards. The phone apps moved to the new look in version 0.5.0, and the Studio received light and dark variants. All 26 icons were re-rendered in Blender in cobalt and navy.
Gewerkton also reports 228 AI film runs for five regions, including 222 regional versions, as well as eight help videos. The site’s 1,583 uploaded files were reported as error-free. The company says the work was tested before release: the phone app passed 853 of 853 tests, the Studio passed 2,158 of 2,158, and the website passed all seven test suites. Its web-app suite still had eight failing tests across seven files; six files reportedly fail the same way on the main branch, while one failure depends on test order and passes when run alone.
The two-day description refers to execution, not a design starting from scratch. Gewerkton says an interim design draft dated Sept. 26 was carried into the Oct. 2–3 work. Its account also describes a staged process: agents worked in a separate code copy and branch, and Meyer released each part only after reviewing it. Film runs showing the interface and paid reruns required his approval.
Human Review Shaped the AI Rollout
The relaunch is a company-reported example of AI agents handling implementation across several connected products, rather than one isolated screen or feature. The scope included apps, a studio tool, icons and a 40-language website, while the release process kept decisions and deployment under human control. That distinction matters to readers evaluating what “AI-built” means in practice: in Gewerkton’s description, agents did the coding and production work, but Meyer approved plans, inspected outputs and controlled releases.
The reported setbacks also show why automated tests were not the only safeguard. Meyer says an initial icon treatment placed white tiles behind icons, obscuring nearby labels in dark mode. A visual inspection caught the issue; no test had flagged it. The company says it fixed the icons and a related layout rule the same evening. That example illustrates both the speed of the rollout and the need for people to check interfaces in real use.
The film work had separate quality and cost risks. Gewerkton says a colour-detection mask missed red in shadow and warm lighting, and some attempts at recolouring produced visibly wrong results, including blue lips or patches. After visual checks, the team cleaned 24 files and temporarily substituted the European cut for 10 regional versions with remaining red. The source gives an approximate actual film cost of $134, but the available material does not specify the full project cost or how that figure was calculated.
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From Draft to Released Design
Gewerkton is built in Iffeldorf, Bavaria, by Thorsten Meyer, who directs a group of AI coding agents using Codex and Claude. The source comes from ThorstenMeyerAI.com, which discloses that its publisher builds Gewerkton and writes about what it learns. The account is therefore a first-party description of the company’s own work, not an independent audit of the process or results.
The work began with a written plan listing open decisions, options and recommendations; Meyer says he approved the recommended choices. The design had an earlier starting point: an interim draft from Sept. 26 was used during implementation. The new palette also received a standards-related adjustment. Gewerkton says the original cobalt reached a contrast ratio of 4.38:1 against the light background, below the company’s working threshold of 4.5:1 under WCAG 2.1 AA, so it darkened the colour to 4.80:1.
Testing covered multiple screen widths, languages and themes. The web app was inspected in 200 views across English, German, Japanese and Hindi at widths of 390, 834 and 1,440 pixels, in light and dark modes. The website was run at three widths across five regions, and the live version was checked again after upload. For films, the company says reviewers inspected the middle frame of each of 157 mirrored films and watched reworked films again at 10%, 50% and 90% of their length.
““Two days” needs one qualification. An interim draft of the look from 26 September was carried into the work, so the design did not start from nothing on 2 October.”
— Gewerkton’s account on ThorstenMeyerAI.com
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Costs and Follow-Up Still Open
The source is the publisher’s own account, and the supplied material does not include independent verification of the implementation timeline, test results, upload count or film-run totals. It also does not give a complete accounting of the redesign’s costs. The approximately $134 figure applies to the films; the material does not say whether it includes staff time, agent subscriptions, other services or the broader app and website work.
Gewerkton says 76 failed film jobs were not billed and production paused after round nine, when 38% of jobs were failing and 208 of 228 runs had been completed. The account does not detail the billing terms behind that figure. It also says nine regional versions were later reshot with approval and passed visual review, but does not explain the final status of every regional film or identify the five regions.
The app tests were not entirely clear of failures: the company attributes seven of eight web-app failures to existing main-branch behavior or test order, but the supplied account does not provide test logs for outside review. It reports five major findings in an Android test on a Pixel 10a, none considered release blockers, but does not list all five. The company says they are scheduled for version 0.5.1.
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Android Fixes Are Scheduled
Gewerkton says the five findings from its Pixel 10a Android test are scheduled for version 0.5.1. One described issue involves larger text and padding causing camera-screen buttons to break mid-word; the German cancel label now wraps onto two lines. The source does not give a release date for the update.
The company also says nine regional film runs were reshot after visual review and approval. It has not provided a timetable for any further reshoots or a full public accounting of the work’s cost. The next reported milestones are the Android update and any remaining film corrections; the available material does not establish whether further design changes are planned.
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Key Questions
What did Gewerkton change?
Gewerkton says it applied its HORIZON design to the web app, iPhone and Android apps, Studio, 26 icons and a 529-page website available in 40 languages. It also reports producing 228 AI film runs for five regions and eight help videos.
Was the design created entirely in two days?
No. Gewerkton says an interim design draft dated Sept. 26, 2026, preceded the Oct. 2–3 implementation. The two-day claim covers the execution from an approved plan to the live website, according to the company.
What did the AI agents do, and what did Meyer do?
The agents implemented the work from written plans in a separate code copy and branch. Founder Thorsten Meyer approved the plan, reviewed results and released each stage; he also approved specified film runs and paid reruns.
Were there problems after testing?
Yes. A dark-mode icon issue was caught during visual review and fixed. Gewerkton also reports film-colour errors and eight failing web-app tests, which it says were not caused by the redesign. Five Android test findings are scheduled for version 0.5.1.
How much did the relaunch cost?
The supplied account gives an approximate actual cost of $134 for the film work. It does not provide a total cost for the redesign or explain whether the film figure includes staff time, subscriptions or other expenses.
Source: ThorstenMeyerAI.com
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