Agent skill

Design Extract

by nexu-io in nexu-io/open-design

Extract design tokens (color / typography / spacing) from imported source code, screenshots, or Figma exports into the canonical token bag token-map consumes.

Apache-2.0Auto-check passedFrontend & Design

Install Design Extract

skills CLI
$ npx skills add nexu-io/open-design --skill design-extract -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install nexu-io/open-design design-extract --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/nexu-io/open-design.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/_official/atoms/design-extract .claude/skills/design-extract && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
design-extract
GitHub stars
100k
Token cost
~549 tokens
SKILL.md length
206 words
Files
2
Skills in repo
245
Repo updated
First seen
Licence
Apache-2.0

At a glance

Extract design tokens (color / typography / spacing) from imported source code, screenshots, or Figma exports into the canonical token bag token-map consumes.

  • Tasks that involve Design tokens
  • SKILL.md covers Inputs, Output, Convergence and Anti-patterns the prompt…, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Tasks that involve Typography

What it does

Design Extract is an agent skill from nexu-io/open-design. Extract design tokens (color / typography / spacing) from imported source code, screenshots, or Figma exports into the canonical token bag token-map consumes.

Its SKILL.md is about 550 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `open-design.json`).

It sits in Frontend & Design, covering Design tokens and Typography. It works with Figma and Tailwind CSS. The repository describes itself as: 🎨 Best DeepSeek Harness Design Plugin. The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes… The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Design tokens
  • Tasks that involve Typography

Example prompts

  • “/design-extract”

What it can do on your machine

Read from SKILL.md and the folder at commit 17e2559. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are jsonc).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Design Extract loads about 549 tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 206 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~43
When it runs · the whole SKILL.md, loaded when a task matches
~549

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from nexu-io/open-design at commit 17e2559, republished under its Apache-2.0 licence (© nexu-io). 206 words, ~549 tokens.

Download SKILL.mdSave it as .claude/skills/design-extract/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
design-extract
description
Extract design tokens (color / typography / spacing) from imported source code, screenshots, or Figma exports into the canonical token bag token-map consumes.
od.scenario
code-migration
od.mode
extract

Design extract

Spec §10 / §21.3.2: tokens scattered across a repo's CSS / theme files / Tailwind config / styled-components helpers / SCSS partials need to be lifted into one bag before token-map can crosswalk them onto the active OD design system. This atom does the lifting; the input shape is intentionally generic so the same atom serves both code-migration and figma-migration when fed different sources.

Inputs

  • code/index.json from code-import (code-migration), OR
  • figma/tree.json from figma-extract (figma-migration), OR
  • A folder of screenshot images (tune-collab quick-tune flows).

Output

text
project-cwd/
└── code/
    └── tokens.json     # { colors[], typography[], spacing[], radius[], shadow[] }

Each token entry carries:

jsonc
{
  "kind":     "color",
  "name":     "primary-500",     // optional source name
  "value":    "#5b8def",          // canonical value
  "sources": ["styles/global.css:42", "tailwind.config.js:24"],
  "usage":   ["Header.tsx", "Footer.tsx"]
}

sources[] and usage[] are the audit trail token-map.unmatched.json references when a target token can't be found.

Convergence

The atom completes when code/tokens.json exists. Empty token bags emit a warning event but do not abort — token-map handles the empty case by skipping its mapping pass.

Anti-patterns the prompt fragment forbids

  • Hard-coded hex values inside JSX literals (color: '#fff') are tokens for this atom's purposes; record them with kind:'color' and a synthetic name so they don't disappear into the noise.
  • Tailwind utility scans must dedupe palette references against the active theme — never list bg-blue-500 and bg-blue-600 as one token.

Status

Implemented by the daemon runner in apps/daemon/src/plugins/atoms/design-extract.ts. It scans the indexed source files, extracts CSS, Tailwind, and JavaScript token evidence, and writes code/tokens.json.

© nexu-io, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in plugins/_official/atoms/design-extract of nexu-io/open-design.

  • SKILL.md
  • open-design.json

Open the folder on GitHubat commit 17e2559

Compare with similar skills

Design Extract next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Design Extract compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Design Extract this skillnexu-io/open-design100k—~549Automated safety check: PassApache-2.0
Ad Designalexandremendoncaalvaro/CorridorKey-Runtime756—~1.1kAutomated safety check: PassCustom licence
Design System Generatemohitagw15856/pm-claude-skills1.4k—~1.7kAutomated safety check: PassMIT
Design SystemOhh-889/skyroc79511 repos~1.7kAutomated safety check: PassMIT
Scalar Design Systemscalar/scalar16k—~2.7kAutomated safety check: PassMIT
Extract DesignManavarya09/design-extract4.2k—~786Automated safety check: NotesMIT

Similar skills

  • Ad Design

    alexandremendoncaalvaro/CorridorKey-Runtime

    Generate DESIGN.md at the repo root by scanning existing design tokens (Figma export, tailwind.config, tokens.json, stylesheet) and synthesizing W3C-compatible YAML frontmatter + Markdown rationale…

    756 GitHub stars~1.1k tokensUpdated 2 mo ago
    Frontend & DesignAuto-check passed
  • Design System Generate

    mohitagw15856/pm-claude-skills

    Generate a complete, accessibility-checked design system from scratch — colour ramps, type scale, spacing, elevation, and exports for CSS, Tailwind, design tokens, Figma, VS Code and PowerPoint.

    1.4k GitHub stars~1.7k tokensUpdated yesterday
    Frontend & DesignAuto-check passed
  • Design System

    Ohh-889/skyroc

    Token architecture, component specifications, and slide generation.

    795 GitHub starsUsed in 11 repos~1.7k tokens
    Frontend & DesignAuto-check passed
  • Scalar's design system — design tokens, theming (@scalar/themes), CSS variables, and the @scalar/components library.

    16k GitHub stars~2.7k tokensUpdated today
    Frontend & DesignAuto-check passed
  • Extract Design

    Manavarya09/design-extract

    Extract the full design language from any website URL. An agent skill from Manavarya09/design-extract.

    4.2k GitHub stars~786 tokensUpdated yesterday
    Frontend & DesignAuto-check: notes
  • Figma Codegen

    awdr74100/figwright

    Generate framework-aware code from a Figma design. An agent skill from awdr74100/figwright.

    1k GitHub stars~4.2k tokensUpdated today
    Frontend & DesignAuto-check passed

More from nexu-io/open-design

All 245 skills in this repo
  • Humanize PPT

    nexu-io/open-design

    Turns raw notes into a talk-ready slide outline with per-page image, diagram or video decisions, then checks the rendered deck against that outline.

    100k GitHub stars~4k tokensUpdated today
    Auto-check passed
  • Last 30 Days Trend Research

    nexu-io/open-design

    Produces a cited Markdown briefing on recent community sentiment and social reaction to a topic, labeling every source it could not actually check.

    100k GitHub stars~1.3k tokensUpdated today
    Auto-check passed
  • OpenDesign Contribution Flow

    nexu-io/open-design

    Helps newcomers contribute to OpenDesign: ship a skill or design system, translate docs, fix docs or report a bug, ending in a pull request or issue.

    100k GitHub stars~3.5k tokensUpdated today
    Auto-check: notes
  • Turns a chat transcript or screenshot into a configurable animated chat clip, rendered as a Remotion bundle with optional transparency.

    100k GitHub stars~1.1k tokensUpdated today
    Auto-check passed
  • Team-management dashboard skill in the FlowAI aesthetic — three tabs (Team Members, Team Details, Activity Log), KPI stat row, member table, role distribution bar chart, online presence and activity…

    100k GitHub stars~865 tokensUpdated today
    Auto-check passed
  • Hatch Pet

    nexu-io/open-design

    Create, repair, validate, preview, and package Codex-compatible animated pet spritesheets from character art, screenshots, generated images, or visual references.

    100k GitHub stars~6k tokensUpdated today
    Auto-check passed

Questions about Design Extract

What does Design Extract do?

Extract design tokens (color / typography / spacing) from imported source code, screenshots, or Figma exports into the canonical token bag token-map consumes. Design Extract is an agent skill from nexu-io/open-design. Extract design tokens (color / typography / spacing) from imported source code, screenshots, or Figma exports into the canonical token bag token-map consumes.

When should I use Design Extract?

Design Extract fits situations like: tasks that involve Design tokens; tasks that involve Typography.

How do I install Design Extract in Claude Code?

Run `npx skills add nexu-io/open-design --skill design-extract -a claude-code`. Or copy the skill folder (plugins/_official/atoms/design-extract in nexu-io/open-design) into .claude/skills/design-extract in your project. Claude Code loads it when a task matches its description.

How do I install Design Extract in Codex?

Run `npx skills add nexu-io/open-design --skill design-extract -a codex`. Or copy the skill folder (plugins/_official/atoms/design-extract in nexu-io/open-design) into .agents/skills/design-extract in your project. Codex loads it when a task matches its description.

Can I use Design Extract in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nexu-io/open-design --skill design-extract -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/design-extract, .gemini/skills/design-extract, .github/skills/design-extract and .opencode/skills/design-extract in your project.

What does Design Extract need to run?

SKILL.md names no scripts, command-line tools or credentials: Design Extract is instructions for the agent only.

Does Design Extract access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Design Extract safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Design Extract use?

Design Extract is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Design Extract use?

About 549 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Design Extract?

Skills that share tags, products or a category with Design Extract: Ad Design (alexandremendoncaalvaro/CorridorKey-Runtime, 756 stars), Design System Generate (mohitagw15856/pm-claude-skills, 1.4k stars), Design System (Ohh-889/skyroc, 795 stars) and Scalar Design System (scalar/scalar, 16k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Design Extract?

nexu-io (a GitHub organization) maintains it in nexu-io/open-design, which has 100,280 GitHub stars. The repository holds 245 skills in this directory. The repository was last updated on October 10, 2026.

Source: nexu-io/open-design on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.