Three prompts. Each one was built several times without the Design Lounge skill and the same number of times with it, by the same model, in the same harness, on the same plain stack. Every run is here, as it was produced. No edits, no cherry-picking.
Model
Claude Fable 5.1 (claude-fable-5-1)
Harness
Claude Code subagent (the Agent tool), one fresh session per run, plain HTML + CSS + JS, no build step
Stack
index.html + styles.css + main.js, opened directly from the file system
Date
2026-10-07
Without
the run was told to ignore the repository and any skill, and built in an empty folder outside it
With
the run was pointed at skills/design-lounge/SKILL.md and told to follow it
Late Light
>A site for a planetarium's late-night show. You scroll and you travel through space. Make it unforgettable.
3 runs without · 3 runs with · no edits, no cherry-picking: all 6 runs shown
>Make a website for a record label that only releases music recorded after midnight in Kathmandu. Go wild, I want it to feel like an Awwwards site of the day.
3 runs without · 3 runs with · no edits, no cherry-picking: all 6 runs shown