npx skills add ...
npx skills add openai/plugins --skill geist
npx skills add openai/plugins --skill geist
Expert guidance for Geist, Vercel's default typography system and font family for precise Next.js interfaces. Use when configuring Geist Sans, Geist Mono, or Geist Pixel, setting up font imports, or applying Vercel typography and aesthetic guidance.
You are an expert in Geist (v1.7.0), Vercel's open-source font family designed for developers and interfaces. It includes Geist Sans (a modern sans-serif), Geist Mono (a monospace font optimized for code), and Geist Pixel (a display typeface with five pixel-based variants for decorative use in headlines and logos).
Then use in components:
Geist fonts expose CSS custom properties:
| Variable | Font |
|---|---|
--font-geist-sans | Geist Sans |
--font-geist-mono | Geist Mono |
Use them in CSS:
Both Geist Sans and Geist Mono support these weights:
| Weight | Value |
|---|---|
| Thin | 100 |
| Extra Light | 200 |
| Light | 300 |
| Regular | 400 |
| Medium | 500 |
| Semi Bold | 600 |
| Bold | 700 |
| Extra Bold | 800 |
| Black | 900 |
Geist is not just a font import. In the Vercel stack it is the default typography system for interfaces that feel precise, calm, and high-signal.
Avoid defaulting entire interfaces to text-base.
Optimize font loading by specifying subsets:
Geist Pixel is a bitmap-inspired display typeface family designed for headlines, logos, and decorative use. It ships five variants, each built on a different geometric primitive:
| Variant | Description |
|---|---|
| Geist Pixel Square | Square-based pixel grid |
| Geist Pixel Grid | Dense grid pattern |
| Geist Pixel Circle | Circular dot matrix |
| Geist Pixel Triangle | Triangular pixel forms |
| Geist Pixel Line | Line-based pixel strokes |
Geist Pixel is intended for display sizes only — use Geist Sans for body text and Geist Mono for code.
Coding ligatures are no longer enabled by default. They have been moved from contextual alternates to Stylistic Set 11 (SS11). If you rely on coding ligatures in your editor or terminal, enable SS11 explicitly:
"editor.fontLigatures": "'ss11'"font-feature-settings: 'ss11' 1;Geist 1.7.0 includes a redesigned Cyrillic script for all Geist Sans and Geist Mono styles.
next/font for zero-layout-shift font loading--font-geist-sans and --font-geist-mono for flexible stylinggeist/font/sans and geist/font/mono (not geist/font)// app/layout.tsx
import { GeistSans } from 'geist/font/sans'
import { GeistMono } from 'geist/font/mono'
export default function RootLayout({ children }: { children: React.ReactNode }) {
return (
<html lang="en" className={`${GeistSans.variable} ${GeistMono.variable}`}>
<body>{children}</body>
</html>
)
}// tailwind.config.ts
import type { Config } from 'tailwindcss'
const config: Config = {
theme: {
extend: {
fontFamily: {
sans: ['var(--font-geist-sans)'],
mono: ['var(--font-geist-mono)'],
},
},
},
}
export default config<p className="font-sans">Geist Sans text</p>
<code className="font-mono">Geist Mono code</code>body {
font-family: var(--font-geist-sans);
}
code, pre {
font-family: var(--font-geist-mono);
}<h1 className="text-4xl font-medium tracking-[-0.04em]">Large page title</h1>
<p className="text-sm leading-6 text-muted-foreground">Supporting copy</p>
<div className="font-mono text-[12px] text-muted-foreground tabular-nums">Dense metadata</div>
<h2 className="text-lg tracking-tight">Section heading</h2>
<h2 className="text-xl tracking-tight">Large section heading</h2>
<label className="text-sm">UI label</label>import { GeistSans } from 'geist/font/sans'
// GeistSans automatically uses the 'latin' subset
// For additional subsets, configure in next.config.js