A web page case completed by @DevBySami using GPT-5.6 Sol · ShioriCode, including the public result, full prompt, and original source.
View original source ↗Prompt
GPT-5.6 Sol is way better at UI when not used in the Codex harness. It generated this landing page for a software agency with this prompt: "Design a beautiful landing page for a software agency based in Tokyo, Japan." Harness used: ShioriCode.
Reusable method
Key decisions
Check whether information hierarchy, module order, and CTA clarity all hold in the final result.
Adapt it to your subject
Extract “target result → the product name, audience, page modules, and primary button → constraints” as a reusable template for similar work.
Where it breaks
Run single-variable comparisons around module order, value proposition, and CTA placement. Record the model, cost, and failures; turn it into a Skill only after it repeats reliably.
Recommended models
Derived Skill
Skills are derived from repeated patterns in published cases. They are not a separate submission type.

Creator
DevBySami focuses on production-ready AI interfaces and is active on X. “Tokyo Software Agency Landing Page” is the current representative case, built with GPT-5.6 Sol · ShioriCode with its stability retest open to votes.
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