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Nutlope/hallmark: test run, 2026-10-10

The same brief, built twice by Claude Code (Claude Opus 5.5) in a throwaway sandbox: a landing page for a made-up app, with fixed copy and the design left open. Measured in a browser at 1440 and 375 px. All results · The brief · How it is counted

Shares 1.0 of 4 with the no-skill page; its two builds share 2 of 4; 7.0 of 7 checks passed.

Build 1

Nutlope/hallmark build 1, first screen

Build 2

Nutlope/hallmark build 2, first screen

Click a picture for the whole page.

Fonts and colours

Build 1Build 2
Headline fonthanken grotesknewsreader
Body fonthanken groteskibm plex sans
Accent colourinkink
Backgroundcool papercool paper

Page checks

Build 1Build 2
copy completepasspass
nothing addedpasspass
one h1passpass
button on the first screenpasspass
no sideways scroll on a phonepasspass
no script errorspasspass
no outside requestspasspass