brain

hallmark

Properties13
descriptionAnti-AI-slop design skill for Claude Code, Cursor, and Codex.
statusseedling
typesource
created2026-10-04
updated2026-10-04
tagsoss
aliases
sourcehttps://github.com/Nutlope/hallmark
homepagehttps://www.usehallmark.com/
languageCSS
licenseMIT
stars29484
public

2 min read

Hallmark

A design skill for Claude Code, Cursor, and Codex that refuses to look AI-generated.

Live demo → · twenty-one themes · four verbs · press T to cycle.

Made by Together AI.

Hallmark, a design skill that refuses to look AI-generated

Hallmark picks a macrostructure for the brief, dresses it in one of twenty-one themes, runs fifty-seven slop-test gates plus a pre-emit self-critique, and refuses the on-distribution defaults every LLM was trained into. Two pages by Hallmark for two different briefs feel like different sites, not colour-swaps of the same template.

Four verbs

VerbWhat it does
(default)Build new UI. Picks a macrostructure, applies the rule-set, runs the slop test before handing back.
hallmark audit <target>Score existing code against the anti-patterns. Punch list, no edits.
hallmark redesign <target>Throw out the structure, keep copy + IA + brand, rebuild with a different fingerprint.
hallmark study <screenshot | URL>Extract the DNA from a design you admire: macrostructure, type-pairing, colour anchor. Refuses pixel-clones and paid templates. Optionally emits a portable design.md for handoff to other AI tools.

Different briefs, different shapes

Each generated from a different brief. The skill picks the theme, structure, and craft to fit each one, not from a template.

Bubble guided sourdough app heroDistil content-extraction API heroCold Snap record-label EP heroCinder AI reasoning tool hero
Bubble Sourdough app · HumDistil Extraction API · CobaltCold Snap Record label · CarnivalCinder AI tool · Lumen
Ferns and Fathom tea menu heroHollowback Apiary honey farm heroOff-Register risograph print fair heroPress Quaternary type studio hero
Ferns & Fathom Tea menu · CustomHollowback Apiary Honey farm · GardenOff-Register Print fair · RisoPress Quaternary Type studio · Custom
Tally SaaS product page heroWayfare travel booking heroNAJM Moroccan fashion brand heroHyperlane developer infrastructure hero
Tally SaaS · modern-minimalWayfare Travel · atmosphericNAJM Fashion brandHyperlane Dev infrastructure

Each page is self-contained HTML + CSS, stamped with its macrostructure in the CSS comment. Browse the full set at usehallmark.com or under site/_tests/.

Custom NEW

When a brief carries creative intent that no catalog theme fits, Hallmark switches to Custom and designs the page from scratch: a made-to-measure palette, type, and layout. Same 57 slop-test gates, no template underneath.

The Cascadia Nightjar sleeper-train ticket heroThe Mend Assembly repair-café broadsheet hero
The Cascadia Nightjar Sleeper-train ticket · CustomThe Mend Assembly Repair-café broadsheet · Custom

It stays a quiet branch; vanilla briefs never see it. The protocol lives in custom-theme.md.

Install

npx skills add nutlope/hallmark

Re-run any time to update. Or copy SKILL.md + references/ into:

  • Claude Code: ~/.claude/skills/hallmark/
  • Cursor: .cursor/rules/hallmark.mdc (body of SKILL.md, no frontmatter)
  • Codex: ~/.codex/skills/hallmark/ (personal) or .codex/skills/hallmark/ (project-scoped)

The rule-set lives in SKILL.md and references/. Worked examples in docs/recipes.md and docs/study-examples.md.

Graph View

Backlinks