Borrowing it
Nothing to install: this file belongs to jujunjun110/product-starter. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/jujunjun110/product-starter/main/.claude/skills/design-ui/SKILL.mdgit clone --depth 1 https://github.com/jujunjun110/product-starterWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jujunjun110/product-starter/design-ui)<a href="https://agentmods.dev/skills/jujunjun110/product-starter/design-ui"><img src="https://agentmods.dev/badge/skills/jujunjun110/product-starter/design-ui/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jujunjun110/product-starter/design-ui"><img src="https://agentmods.dev/badge/skills/jujunjun110/product-starter/design-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00028 | $0.00378 |
| Opus 5.5 | $0.00011 | $0.00151 |
| Sonnet 5.5 | $0.00006 | $0.00076 |
| Haiku 4.5 | $0.00003 | $0.00038 |
Grade A, and why
design-ui scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
UI デザインスキル
ユーザーが「〇〇な画面を作って」「デザインを変えて」と指示したときに適用する。
使用するUIスタック
- shadcn/ui:
src/frontend/components/ui/に配置 - Tailwind CSS: スタイリング
- Lucide React: アイコン（
lucide-reactからインポート）
shadcn/ui コンポーネントの追加
新しい shadcn/ui コンポーネントが必要な場合:
cd apps/webapp && npx shadcn@latest add {component-name}
コンポーネント配置
| 種類 | 配置先 |
|---|---|
| shadcn/ui 基本コンポーネント | src/frontend/components/ui/ |
| 機能固有コンポーネント | src/frontend/components/{feature}/ |
ルール
- Server Component がデフォルト。
'use client'は必要な場合のみ'use client'が必要: onClick, onChange, useState, useEffect 等を使う場合- 不要: データ表示のみのコンポーネント
- カスタム CSS は原則不要（Tailwind で解決）
frontend/からbackend/presentation/以外の backend コードを import しない- レスポンシブデザインを考慮する（
md:ブレークポイント等）
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 38 lines · 28 tokens per session scan A 545c2fe3397a
design-ui is a skill published in the GitHub repository jujunjun110/product-starter (17 stars, last pushed 4mo ago), licensed MIT. It adds 28 tokens to every session and 378 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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