X Openai Geist 510bd61

---
name: x-openai-geist-510bd61
description: 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.
metadata:
  priority: '4'
  docs: '[''https://vercel.com/font'', ''https://github.com/vercel/geist-font'']'
  sitemap: https://vercel.com/sitemap/docs.xml
  pathPatterns: '[''app/layout.*'', ''src/app/layout.*'', ''app/globals.css'', ''src/app/globals.css'', ''styles/**'', ''tailwind.config.*'', ''apps/*/app/layout.*'', ''apps/*/src/app/layout.*'', ''apps/*/app/globals.css'', ''apps/*/src/app/globals.css'']'
  importPatterns: '[''geist'', ''geist/font'', ''geist/font/*'']'
  bashPatterns: '[''\\bnpm\\s+(install|i|add)\\s+[^\\n]*\\bgeist\\b'', ''\\bpnpm\\s+(install|i|add)\\s+[^\\n]*\\bgeist\\b'', ''\\bbun\\s+(install|i|add)\\s+[^\\n]*\\bgeist\\b'', ''\\byarn\\s+add\\s+[^\\n]*\\bgeist\\b'']'
---

### 导出副本边界与技能别名

迁移、安装、修复和经验回写只作用于当前加载的目标宿主技能副本。原 Codex 技能/MCP、下载的源码和 `original-skills` 均为来源材料，不因执行本副本而写入；只有用户另行明确要求配置 Codex 产品本身时，才按该产品流程处理指定目标。脚本需要安装目录或状态目录时，显式提供目标路径；不得从 `CODEX_HOME` 隐式推断写入位置。

跨技能名称可能沿用源库别名。先查 [技能别名表](../../skill-aliases.json)，优先选择同来源、同插件的条目，再使用其 `id` 调用或读取对应入口；不得假定旧 `$skill`、`superpowers:skill` 名称在新宿主直接注册。不能确定目标时先核对，不替换真实产品命令或 Shell 环境变量。

## 跨宿主使用约定

本副本供支持 Agent Skills 的客户端使用。先检查当前宿主实际提供的工具、权限和已连接服务，再执行正文工作流。原文中的宿主工具标识是能力参考；只有实际发现该工具时才可调用，其他宿主应使用经核验的等价 MCP、CLI 或 API。没有等价能力的步骤必须报告不可用，不能虚构调用或完成状态。

技能资源以本技能目录为基准；输出写入当前项目中用户指定的位置。通过技能名称或自然语言触发，具体快捷命令由宿主决定。涉及真实产品、模型 API、协议字段和官方网址的名称保持原意。授权、审批、隐私和工具范围限制在迁移后仍然有效；不得为兼容而扩大权限。具体依赖与迁移说明见同目录 `PORTABILITY.md`。

# Geist — Vercel's Font Family

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).

## Installation

```bash
npm install geist
```

## Usage with Next.js (next/font)

### App Router

```tsx
// 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 className={GeistSans.className}>
        {children}
      </body>
    </html>
  )
}
```

### With Tailwind CSS

```tsx
// 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>
  )
}
```

```ts
// 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
```

Then use in components:

```tsx
<p className="font-sans">Geist Sans text</p>
<code className="font-mono">Geist Mono code</code>
```

### CSS Variables

Geist fonts expose CSS custom properties:

| Variable | Font |
|---|---|
| `--font-geist-sans` | Geist Sans |
| `--font-geist-mono` | Geist Mono |

Use them in CSS:

```css
body {
  font-family: var(--font-geist-sans);
}

code, pre {
  font-family: var(--font-geist-mono);
}
```

## Font Weights

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 |

## Typography Direction for Geist

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.

### What good looks like

- Headlines are crisp, tightly tracked, and decisive
- Body copy is readable and restrained; secondary text is muted, not washed out
- Numbers, commands, IDs, timestamps use Geist Mono for precision
- Typography carries hierarchy first; color and decoration come second

### Default type recipes

```tsx
<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>
```

Avoid defaulting entire interfaces to `text-base`.

### Where to use each family

- Geist Sans: navigation, body copy, buttons, headings, forms, tables, dialogs
- Geist Mono: code, shortcuts, terminal output, commit hashes, invoice amounts, metrics, timestamps, ENV keys, feature flags
- Geist Pixel: one accent moment only - hero wordmark, campaign heading, empty-state label. Never body text or settings UI.

### Anti-patterns

- Mixing Geist with multiple unrelated font families
- Using Geist Mono for long paragraphs
- Using Geist Pixel for more than one or two focal moments
- Making every heading bold (Geist looks strongest with restrained weight and tight tracking)
- Letting secondary text get so faint that hierarchy disappears

## Subset Configuration

Optimize font loading by specifying subsets:

```tsx
import { GeistSans } from 'geist/font/sans'

// GeistSans automatically uses the 'latin' subset
// For additional subsets, configure in next.config.js
```

## Geist Pixel (Feb 6, 2026)

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 (v1.7.0)

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:

- **VS Code**: `"editor.fontLigatures": "'ss11'"`
- **CSS**: `font-feature-settings: 'ss11' 1;`

## Cyrillic Support (v1.7.0)

Geist 1.7.0 includes a redesigned Cyrillic script for all Geist Sans and Geist Mono styles.

## Key Points

1. **Optimized for Next.js** — works seamlessly with `next/font` for zero-layout-shift font loading
2. **Three families** — Geist Sans for UI text, Geist Mono for code, Geist Pixel for decorative display
3. **CSS variables** — `--font-geist-sans` and `--font-geist-mono` for flexible styling
4. **Variable font** — single file supports all weights (100–900)
5. **Self-hosted** — fonts are bundled with your app, no external requests
6. **Import paths** — use `geist/font/sans` and `geist/font/mono` (not `geist/font`)
7. **Coding ligatures** — opt-in via Stylistic Set 11 (no longer default)

## Official Resources

- [Geist Font GitHub](https://github.com/vercel/geist-font)
- [Geist Design System](https://vercel.com/geist)