Hallmark

Nutlope/hallmarkReviewed by AI

What it does

Hallmark is a design skill you add to an AI coding assistant such as Claude Code, Codex, Cursor or OpenCode. When the assistant builds a web page, Hallmark picks one of fifty visual styles, lays the page out around what the page is for, then checks the result against a list of tells that make pages look machine-made. It can also redesign or audit a page you already have. You need Node 18 or newer and one of those assistants; the browser-based checks and screenshots also need Chrome and puppeteer-core. The output is self-contained HTML and CSS.

How easy it is to install

C · install 1 or 2 tools · Windows

Windows C
macOS C
Linux C

Same on Windows, macOS and Linux: have Node 18 or newer and a supported assistant, then one command (`npx skills add nutlope/hallmark -g`) and you call it with `/hallmark`. For the browser checks and screenshots you also install Chrome and `npm i -g puppeteer-core`; without them only the static checks run.

Numbers on GitHub

Stars: 43,931on Oct 31, 2026
Downloads: —all releases
Growth: +7,590stars in 5 days

Stars over time

Facts

Runs on: Windows, macOS, Linux
You need to install: Node.js, Other tools
To build from source: Node.js
Disk space: 100 MB–500 MB · estimate
Accounts or keys: None
Cost: Free, API costs extra · MIT licensed and free. It only works inside an AI coding assistant, which normally needs a paid plan or paid API use. The README says it is made by Together AI, a paid model provider.
License: MIT (Permissive)
Can replace: Tailwind Plus, v0 by Vercel
Last update: Oct 29, 2026

Risk signals (5)

Attentionredesign rewrites files in your project
README: '/hallmark redesign ./src/app rebuilds a page and keeps its content and wiring'. A full redesign 'changes the system and the layout' of files in the folder you name, so the assistant edits your source; the project's own guard is `sloplint --before` plus `--kept`, which 'fails the redesign if one went missing'.
AI review
Infomade by a paid model provider
README: 'Made by Together AI', and package.json describes it as 'A design skill for AI coding assistants. (...) Powered by Together AI.' Together AI sells model access, so the project promotes its maker's paid service even though the skill itself needs no key.
AI review
Infoinstalls an edit time hook into claude code
README install options: '`install-hook.mjs` adds an edit-time Floor check to Claude Code', so one install path wires code into the assistant that runs on your edits.
AI review
Infopulls photographs from the internet into your pages
README: '755 openly licensed photos, picked per subject and credited on the page' and the licence note says `scripts/photos.json` 'lists photographs hosted on Wikimedia Commons and holds no image files. Each keeps its own licence (CC0, public domain, CC BY or CC BY-SA)'. Some of those licences require you to keep the credit on the page you publish.
AI review
Infono releases install pulls the latest main
Project facts: 0 GitHub releases, and the install command is `npx skills add nutlope/hallmark -g`, which takes whatever is in the repository at that moment instead of a fixed version. The last commit was the same day the package was collected.
AI review

Evidence is shown in its original language.

What Radar could not check

Whether the generated pages really look better than what the assistant produces on its own
How much extra AI usage, and therefore cost, one build with its reviews consumes
Whether the redesign keeps every link, form field and handler on a real project
What the edit-time hook does on each run inside Claude Code
Real disk use after the skill, the theme references and Chrome are installed
Whether the photo credits it writes satisfy every licence in the list