Borrowing it
Nothing to install: this file belongs to Chachamaru127/codex-harness. 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/Chachamaru127/codex-harness/main/.codex/skills/ui/SKILL.mdgit clone --depth 1 https://github.com/Chachamaru127/codex-harnessWrote 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/chachamaru127/codex-harness/ui)<a href="https://agentmods.dev/skills/chachamaru127/codex-harness/ui"><img src="https://agentmods.dev/badge/skills/chachamaru127/codex-harness/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/chachamaru127/codex-harness/ui"><img src="https://agentmods.dev/badge/skills/chachamaru127/codex-harness/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 | $0.00053 | $0.00957 |
| Opus 5.5 | $0.00021 | $0.00383 |
| Sonnet 5.5 | $0.00011 | $0.00191 |
| Haiku 4.5 | $0.00005 | $0.00096 |
Grade A, and why
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 Skills
UIコンポーネントとフォームの生成を担当するスキル群です。
制約の優先順位と適用条件
- 基本は
references/ui-skills.mdの制約を最優先で適用する。 references/frontend-design.mdは「尖った/独自/表現強め/ブランド強化」などが明示された場合のみ適用する。- UI Skills の MUST/NEVER は原則維持。ただしユーザーが明示的に要求した場合のみ以下の例外を許可する:
- グラデーション、発光、強い装飾
- アニメーション（追加・拡張）
- カスタム easing
機能詳細
| 機能 | 詳細 |
|---|---|
| 制約セット | See references/ui-skills.md / references/frontend-design.md |
| コンポーネント生成 | See references/component-generation.md |
| フィードバックフォーム | See references/feedback-forms.md |
実行手順
- 制約セットを適用（優先順位に従う）
- 品質判定ゲート（Step 0）
- ユーザーのリクエストを分類
- 上記の「機能詳細」から適切な参照ファイルを読む
- その内容に従って生成
Step 0: 品質判定ゲート（a11y チェックリスト）
UI コンポーネント生成時は、アクセシビリティを確保:
♿ アクセシビリティチェックリスト
生成する UI は以下を満たすことを推奨：
### 必須項目
- [ ] 画像に alt 属性を設定
- [ ] フォーム要素に label を関連付け
- [ ] キーボード操作可能（Tab でフォーカス移動）
- [ ] フォーカス状態が視覚的に分かる
### 推奨項目
- [ ] 色だけに依存しない情報伝達
- [ ] コントラスト比 4.5:1 以上（テキスト）
- [ ] aria-label / aria-describedby の適切な使用
- [ ] 見出し構造（h1 → h2 → h3）が論理的
### インタラクティブ要素
- [ ] ボタンに適切なラベル（「詳細」ではなく「製品詳細を見る」）
- [ ] モーダル/ダイアログのフォーカストラップ
- [ ] エラーメッセージがスクリーンリーダーで読まれる
VibeCoder 向け
♿ 誰でも使えるデザインにするために
1. **画像には説明をつける**
- 「商品画像」ではなく「赤いスニーカー、正面から」
2. **クリックできる場所はキーボードでも操作可能に**
- Tab キーで移動、Enter で決定
3. **色だけで判断させない**
- 赤=エラー だけでなく、アイコン+テキストも
What ships with it
5 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.
- 1mo ago First seen · 80 lines · 53 tokens per session scan A fdadc4a340cf
ui is a skill published in the GitHub repository Chachamaru127/codex-harness (2 stars, last pushed 8mo ago), licensed MIT. It adds 53 tokens to every session and 957 once invoked, about $0.0002 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 2026-08-31.
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