ui-designer SKILL.md skillA

ui-designer from majiayu000/spellbook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add majiayu000/spellbook/ui-designer@git:20260605.6abfe37

Pins git:20260605.6abfe37 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: majiayu000/spellbook
Path: skills/ui-designer/SKILL.md
Versions recorded: 2
Latest version: git:20260605.6abfe37, committed Jun 5, 2026
First version recorded: Jan 15, 2026
Size: 6,923 bytes
Repository stars: 290
License: MIT

Extract design systems from reference UI images and generate implementation-ready UI design prompts. Use when users provide UI screenshots/mockups and want to create consistent designs, generate design systems, or build MVP UIs matching reference aesthetics.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# UI Designer

## Overview

This skill enables systematic extraction of design systems from reference UI images through a multi-step workflow: analyze visual patterns → generate design system documentation → create PRD → produce implementation-ready UI prompts.

## When to Use

- User provides UI screenshots, mockups, or design references
- Need to extract color palettes, typography, spacing from existing designs
- Want to generate design system documentation from visual examples
- Building MVP UI that should match reference aesthetics
- Creating multiple UI variations following consistent design principles

## Workflow

### Step 1: Gather Inputs

Request from user:
- **Reference images directory**: Path to folder containing UI screenshots/mockups
- **Project idea file**: Document describing the product concept and goals
- **Existing PRD** (optional): If PRD already exists, skip Step 3

### Step 2: Extract Design System from Images

**Use Task tool with general-purpose subagent**, providing:

**Prompt template** from `assets/design-system.md`:
- Analyze color palettes (primary, secondary, accent, functional colors)
- Extract typography (font families, sizes, weights, line heights)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add majiayu000/spellbook/ui-designer@sha256:f6a8eb5e20c9c291

The line at the top of this page pins the label git:20260605.6abfe37, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_cbiazjpuhybwdfgm.svg)](https://markdownregistry.com/a/art_cbiazjpuhybwdfgm)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jan 15, 2026 and Jun 5, 2026, about one every 141 days.

version	committed	commit	size	audit
git:20260605.6abfe37 latest	2026-06-05	6abfe37	6,923 B	A	view · diff
git:20260115.112b20c	2026-01-15	112b20c	1,060 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (6923 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

majiayu000/spellbook · 290 stars · license MIT · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_cbiazjpuhybwdfgm
GET https://markdownregistry.com/api/v1/resolve?ref=majiayu000/spellbook/ui-designer
GET https://markdownregistry.com/api/v1/blob/f6a8eb5e20c9c291546eed3e106d2272ad36d08564f45fbedfbfc21a25a3609b

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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