Design Extract Agent Skill

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

776 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

83386

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/nexu-io/open-design --skill design-extract

What comes with it

890 bytes besides the instruction

open-design.json

The instruction itself

6 sections, as written by the author

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

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

Each token entry carries:

{
  "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.

Other skills for the same job

different authors, same section of the catalogue

Theme Factory

by anthropics

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Web Artifacts Builder

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.

Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.

Set up Tailwind CSS v4 in Expo with react-native-css and NativeWind v5 for universal styling

Use Expo DOM components to run web code in a webview on native and as-is on web. Migrate web code to native incrementally.

3k tokens

How to use it

Copy the folder

Take nexu-io/design-extract from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.