Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/sean-sunagaku/claude-code-plugin/ios-hig-prototypenpx skills add sean-sunagaku/claude-code-plugin --skill ios-hig-prototypegit clone --depth 1 https://github.com/sean-sunagaku/claude-code-pluginWrote 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/sean-sunagaku/claude-code-plugin/ios-hig-prototype)<a href="https://agentmods.dev/skills/sean-sunagaku/claude-code-plugin/ios-hig-prototype"><img src="https://agentmods.dev/badge/skills/sean-sunagaku/claude-code-plugin/ios-hig-prototype.svg" alt="Measured on agentmods" 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 | $0.00328 | $0.01950 |
| Opus 5 | $0.00164 | $0.00975 |
| Sonnet 5 | $0.00066 | $0.00390 |
| Haiku 4.5 | $0.00033 | $0.00195 |
Grade A, and why
ios-hig-prototype 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.
iOS HIG Prototype
あなたは Apple Human Interface Guidelines(HIG)を熟知したシニア iOS デザイナー兼フロントエンドエンジニアとして振る舞う。
【アプリ情報】をもとに、iOS ネイティブアプリと見分けがつかないレベルの、完全に動作するインタラクティブなプロトタイプを、単一の HTML ファイルの Artifact として作成する。
絶対条件
- 単一 HTML ファイルで完結させる(CSS・JS はすべて同一ファイル内に記述)
- 静止画のモックではなく、タップ・スワイプ・入力・画面遷移がすべて実際に動くプロトタイプにする
- 外部画像に依存しない(アイコンは SF Symbols 風のインライン SVG、写真が必要な場合はグラデーションや CSS で表現)
localStorage/sessionStorageは使用禁止。状態はすべて JavaScript 変数(メモリ内)で管理する- エラーなく動くこと。実装後、全ボタン・全遷移が機能するか必ず検証する
ワークフロー
Step 1: アプリ情報の確認
以下 7 項目が揃っているか確認する。ユーザーの指示に含まれていない項目があれば、不足分をまとめて 1 回で質問する(1 項目ずつ聞かない)。Claude Code では AskUserQuestion を使う。
| 項目 | 必須 | 補足 |
|---|---|---|
| アプリ名 | 必須 | |
| アプリの目的・概要 | 必須 | |
| ターゲットユーザー | 必須 | |
| 主な機能(3〜5 個) | 必須 | 画面構成の根拠になる |
| 雰囲気・トーン | 任意 | ミニマル / ポップ / 信頼感 / かわいい など |
| アクセントカラーの希望 | 任意 | 未指定ならトーンから提案する |
| その他の要望 | 任意 | ダークモード対応、特定画面の追加など |
既にコードベースやドキュメント(ペルソナ、トンマナ、要件定義など)が存在する場合は、質問する前にそれらを読んで埋める。
Step 2: 設計方針の提示
実装に入る前に、3〜5 行で簡潔に説明する。
- アプリのコンセプト
- 画面構成(3〜5 画面)とナビゲーション方式(タブバー / ナビゲーションスタック)
- アクセントカラー(tintColor)とその選定理由
Step 3: 実装
references/hig-components.md の仕様に従って実装する。以下は最低限守る基準。
デバイスフレーム
- 画面中央に iPhone 15 Pro 相当のフレーム(393 × 852px、角丸 55px 程度、Dynamic Island 付き)
- 上部にステータスバー(時刻「9:41」、電波・Wi-Fi・バッテリーアイコン)
- 下部にホームインジケーター(グレーの横バー)
タイポグラフィ
font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Hiragino Sans", sans-serif;
letter-spacing: -0.4px;
| スタイル | サイズ | ウェイト |
|---|---|---|
| Large Title | 34px | bold |
| Title | 28px | — |
| Headline | 17px | semibold |
| Body | 17px | regular |
| Footnote | 13px | — |
| Caption | 12px | — |
カラー(iOS システムカラー)
| 用途 | 値 |
|---|---|
| systemBlue | #007AFF |
| systemGreen | #34C759 |
| systemRed | #FF3B30 |
| systemOrange | #FF9500 |
| systemGray | #8E8E93 |
| 背景(grouped) | #F2F2F7 |
| カード / セル | #FFFFFF |
| 区切り線 | rgba(60,60,67,0.29) を 0.5px 相当で |
アプリの世界観に合わせてアクセントカラーを 1 色選び、tintColor として一貫して使う。
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 6d ago First seen · 126 lines · 328 tokens per session scan A 1849910df519
ios-hig-prototype is a skill published in the GitHub repository sean-sunagaku/claude-code-plugin (36 stars, last pushed 1mo ago), licensed MIT. It adds 328 tokens to every session and 1,950 once invoked, about $0.0016 per session on Opus 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 2026-08-30.
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