🔍 Read the full analysis: How Gewerkton Used AI Agents To Give Its Brand A New Look on ThorstenMeyerAI.com

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Gewerkton, a construction-site documentation tool, replaced the look of its web app, iPhone and Android apps, Studio, icons and multilingual website with a design called HORIZON on Oct. 2-3, 2026. The company’s publisher says AI coding agents implemented the changes from written plans, as described in the original analysis, while founder Thorsten Meyer approved the plan, reviewed the work and released each part.

The rollout covered 529 website pages in 40 languages, 26 redesigned icons and a new opening section featuring product screens. Gewerkton also says it uploaded 1,583 files without an error. The phone apps moved to the new look in version 0.5.0, and Studio received light and dark versions of the design.

In the web app, the team moved 281 hard-coded colour values into design tokens and restyled 47 cards, leaving 11 deliberate exceptions. The icons were rendered in Blender in cobalt and navy. A related video effort involved 228 AI film runs for five regions, including 222 regional versions, as well as eight help videos, according to the source material.

The publisher qualifies the two-day description: an interim design draft dated Sept. 26 informed the work. The two days refer to execution from the approved plan through the live website, not to creating the design from scratch. The publisher disclosed that it builds Gewerkton and is documenting its own work, so the operational figures and account of the rollout are company-reported. For guidance on assessing agents before assigning business work, see how to put AI agents through a trial by fire.

Human Checks Shaped the AI Rollout

The rollout offers a case study in how a small product team can use AI coding agents across a broad redesign while keeping people responsible for approvals. Agents worked on a separate code branch, and changes were not merged or released until Meyer reviewed and approved each stage. Film reruns that incurred a charge also required explicit approval.

The account also shows why passing automated tests does not settle whether a design works. A first version of the icons used white tiles that obscured nearby labels in dark mode. Meyer spotted the problem by inspecting the interface; the tests had not caught it. The team changed the icons and corrected a layout rule, then released the fix that evening.

For readers evaluating AI-assisted product work, the reported failures and corrections matter alongside the launch figures. The company describes human review, test suites and visual checks as separate controls, rather than presenting the agent output as ready to ship without oversight. The details are a single company’s account, not independent evidence that the same process or speed will apply to other teams.

From Design Draft to Live Release

Gewerkton is built in Iffeldorf, Bavaria, by Thorsten Meyer, who says he directs AI coding agents from Codex and Claude. For this relaunch, the work began with a written plan listing unresolved decisions, options and recommendations. Meyer approved the recommendations before the agents began implementation on a separate copy of the code.

The source says the web app was checked across 200 views in English, German, Japanese and Hindi, at widths of 390, 834 and 1,440 pixels, in light and dark modes. The company reports 853 of 853 phone-app tests and 2,158 of 2,158 Studio tests passed. The website passed seven of seven test suites and was checked in a browser across three screen widths and five regions, with another run after upload.

Not every test was clean: eight web-app tests failed across seven files. The publisher says six files failed the same way on the main branch, while one test was order-dependent and passed when run alone. It says the redesign neither caused nor fixed those issues. That distinction matters when interpreting the test totals as evidence about the new release.

“The cobalt in the original palette reached a contrast of 4.38:1 against the light background, short of the 4.5:1 that Gewerkton uses as its working standard under WCAG 2.1 AA.”

— Gewerkton publisher, describing its working accessibility standard

Costs and Remaining Fixes

The source material ends during its cost discussion, after saying project records give one actual figure of about $134 for the films. It does not include the rest of that explanation, a full project budget or a breakdown of other expenses. That amount should not be read as the total cost of the redesign.

The account does not provide independent verification of the test results, upload count or film-run figures. It also leaves open how the launch performs for users after release, whether the remaining web-app test failures will be addressed, and whether the temporary use of European film cuts in some regional versions has ended.

For video quality checks, the publisher says people inspected the middle frame of each of 157 mirrored films and watched reworked films at 10%, 50% and 90% of their length. It reports that nine regional film runs were later reshot with Meyer’s approval. The material does not identify all the versions involved or give a complete final status for every regional asset.

Version 0.5.1 and Follow-Up Checks

Gewerkton has scheduled five findings from an Android test on a Pixel 10a for version 0.5.1. One example was a camera-screen button whose larger type and padding caused the German word for “cancel” to wrap onto two lines. The source says none of the five findings was a blocker, but does not give a release date for the update.

The company’s account says nine film runs were reshot after visual review, while 10 regional versions with residual red were temporarily switched to the European cut. It does not say whether every temporary substitution has since been replaced. Further updates would clarify the status of those assets, the planned app fixes and the outstanding web-app test failures.

Key Questions

What changed in Gewerkton’s redesign?

The HORIZON look was rolled out to the web app, iPhone and Android apps, Studio, 26 icons and a 529-page website available in 40 languages.

How did AI agents take part?

According to the publisher, agents from Codex and Claude implemented changes from written plans on a separate code branch. Thorsten Meyer approved the plan, reviewed results and released each part.

Was the redesign completed from scratch in two days?

No. The publisher says an interim design draft existed on Sept. 26. The two-day timeframe describes implementation from the approved plan to the live website on Oct. 2-3, 2026.

What problems did the rollout reveal?

A dark-mode icon treatment obscured nearby labels, and film recolouring missed some red details or affected other areas. An Android test also found five issues scheduled for version 0.5.1. The publisher says the icon and video problems were found through visual review.

How much did the redesign cost?

The supplied account gives a partial figure of about $134 for the films, but the cost section is incomplete. It does not establish the full cost of the redesign.

Source: ThorstenMeyerAI.com