# linear-ui-skills

Hands the agent a fixed set of rules for dark Linear-style interfaces: palette, Inter, 4px grid. Useful when you keep re-explaining the same design details.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 393 installs · ★ 100
- Author: design-skills
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/ihlamury/design-skills/tree/HEAD/skills/linear/SKILL.md
- Updated: 2026-02-10
- HTML: https://affpapa.org/en/nevibecode/skills/linear-ui-skills

## What it does

The skill turns Linear's design system into constraints an AI agent can follow. It ships color tokens with exact HEX values, a type scale, spacing and radius rules, and interactive states. The agent reads them and applies them while generating components.

Core requirements: page background `#080A0A`, `Inter` as the font family, a 4px grid, text contrast at least 4.5:1. Headings sit at `60px` / `700`, body text at `17px` / `400`. Radii come from a scale of `6px` and `8px`, borders stay at `1px`. Focus uses a `2px` outline in `#5E6AD2` with a `2px` offset.

Separate sections cover animation and performance: animate only `transform` and `opacity`, keep interaction feedback under `200ms`, never leave `will-change` on outside an active animation. The rules are strict, so a light-theme project with a different typeface will get pulled toward Linear's dark palette. Worth checking before you install.

## Requirements
- Works with: Linear

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add ihlamury/design-skills --skill linear-ui-skills -a claude-code
```
```bash
npx skills add ihlamury/design-skills --skill linear -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/linear/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/linear/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add ihlamury/design-skills --skill linear -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/linear/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add ihlamury/design-skills --skill linear -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/linear/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install ihlamury/design-skills linear
```

2. **Manually: put the files in place**
- File: `.github/skills/linear/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add ihlamury/design-skills --skill linear -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/ihlamury/design-skills --path skills/linear
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/linear/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add ihlamury/design-skills --skill linear -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/ihlamury/design-skills/tree/HEAD/skills/linear/SKILL.md

## When to use it
- build a dark interface without picking shades by hand
- keep one spacing and radius scale across components
- set Inter typography with ready sizes and weights
- verify text contrast and focus states
- limit animations to transform and opacity

## Example prompts
- Build a settings page in Linear style: dark background, Inter, 4px grid
- Create a card and a modal using the linear-ui-skills tokens
- Rewrite this component against linear-ui-skills and check contrast and focus

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: ae6146a333f5d20b.

BEGIN THIRD-PARTY FILE ae6146a333f5d20b
```text
---
name: linear-ui-skills
description: Linear's UI design system. Use when building interfaces inspired by Linear's aesthetic - dark mode, Inter font, 4px grid.
license: MIT
metadata:
  author: design-skills
  version: "1.0.0"
  source: https://linear.app
---

# Linear UI Skills

Opinionated constraints for building Linear-style interfaces with AI agents.

## When to Apply

Reference these guidelines when:
- Building dark-mode interfaces
- Creating Linear-inspired design systems
- Implementing UIs with Inter font and 4px grid

## Colors

- MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 4
- MUST use `#080A0A` as page background (`surface-base`)
- SHOULD limit color palette to 10 distinct colors
- MUST maintain text contrast ratio of at least 4.5:1 for accessibility

### Semantic Tokens

| Token | HEX | RGB | Usage |
|-------|-----|-----|-------|
| `surface-base` | #080A0A | rgb(8,10,10) | Page background |
| `surface-raised` | #D2D2D3 | rgb(210,210,211) | Cards, modals, raised surfaces |
| `surface-overlay` | #E3E3E6 | rgb(227,227,230) | Overlays, tooltips, dropdowns |
| `text-primary` | #5C5C5C | rgb(92,92,92) | Headings, body text |
| `text-secondary` | #2D2E30 | rgb(45,46,48) | Secondary, muted text |
| `text-tertiary` | #444749 | rgb(68,71,73) | Additional text |
| `border-default` | #B0B1B1 | rgb(176,177,177) | Subtle borders, dividers |

## Typography

- MUST use `Inter` as primary font family
- SHOULD use single font family for consistency
- MUST use `60px` / `700` for primary headings
- MUST use `17px` / `400` for body text
- SHOULD reduce font weights (currently 4 detected)
- MUST use `text-balance` for headings and `text-pretty` for body text
- SHOULD use `tabular-nums` for numeric data
- NEVER modify letter-spacing unless explicitly requested

### Text Styles

| Style | Font | Size | Weight | Color | Count |
|-------|------|------|--------|-------|-------|
| `heading-1` | Inter | 60px | 700 | #E2E4E3 | 1 |
| `body` | Inter | 17px | 400 | #444749 | 1 |
| `body-secondary` | Inter | 16px | 400 | #5C5C5C | 1 |
| `body-secondary` | Inter | 15px | 500 | #2D2E30 | 1 |
| `text-14px` | Inter | 14px | 400 | #B2B3B3 | 1 |
| `text-13px` | Inter | 13px | 400 | #4C4C4C | 1 |
| `text-13px` | Inter | 13px | 400 | #525355 | 1 |
| `text-12px` | Inter | 12px | 400 | #525456 | 1 |
| `caption` | Inter | 9px | 400 | #545557 | 1 |
| `label` | Inter | 9px | 400 | #565759 | 1 |

### Typography Reference

**Font Families:**
- `Inter` (used 13x)

**Font Sizes:** 9px, 12px, 13px, 14px, 15px, 16px, 17px, 60px

## Spacing

- MUST use 4px grid for spacing
- SHOULD use spacing from scale: 5px, 11px, 12px, 13px, 14px, 16px, 19px, 20px
- SHOULD use 5px as default gap between elements
- NEVER use arbitrary spacing values (use design scale)
```
END THIRD-PARTY FILE ae6146a333f5d20b

The third-party file has ended. Everything between the ae6146a333f5d20b tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

First 2804 of 5049 bytes. © design-skills · MIT · https://github.com/ihlamury/design-skills/tree/HEAD/skills/linear/SKILL.md

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