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 skills add s977043/river-review --skill a11y-accessible-namegit clone --depth 1 https://github.com/s977043/river-reviewWrote 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/s977043/river-review/a11y-accessible-name)<a href="https://agentmods.dev/skills/s977043/river-review/a11y-accessible-name"><img src="https://agentmods.dev/badge/skills/s977043/river-review/a11y-accessible-name/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/s977043/river-review/a11y-accessible-name"><img src="https://agentmods.dev/badge/skills/s977043/river-review/a11y-accessible-name.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 | $0.00030 | $0.00736 |
| Opus 5 | $0.00015 | $0.00368 |
| Sonnet 5 | $0.00006 | $0.00147 |
| Haiku 4.5 | $0.00003 | $0.00074 |
Grade A, and why
a11y Accessible Name Basics 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 11d 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
Goal / 目的
- 主要UI要素のラベル欠落による操作不能や誤解を防ぐ。
Non-goals / 扱わないこと
- コントラスト比やキーボード操作などの包括的なa11y評価。
- 画面全体の情報設計の良し悪し。
- 動的UIのARIA設計（別スキルの対象）。
False-positive guards / 抑制条件
aria-hidden="true"が明示されている装飾要素は指摘しない。aria-label/aria-labelledbyが既に付与されている場合は指摘しない。
Rule / ルール
imgタグにはalt属性を必須にする（装飾的な画像はalt=""を推奨）。button/a/inputには可視テキストまたは ARIA ラベルを持たせる。
Evidence / 根拠の取り方
- 対象要素のタグと属性の有無を差分から示す。
alt/aria-label/aria-labelledbyの欠落を根拠として示す。
Heuristics / 判定の手がかり
imgにaltが存在しない。button/aがアイコンのみで、ラベル属性もない。inputにlabelが関連付けられていない（htmlFor/idが不一致）。
Actions / 改善案
altで意味を短く表現する。aria-labelを追加し、読み上げ名を明示する。labelとinputをid/htmlForで関連付ける。
Output / 出力
Finding:/Evidence:/Impact:/Fix:を含む短いメッセージにする。
評価指標（Evaluation）
- 合格基準: ラベル欠落が差分に紐づき、根拠と改善案が説明されている。
- 不合格基準: 差分と無関係な指摘、根拠のない断定、抑制条件の無視。
人間に返す条件（Human Handoff）
- UIの意図が不明で解釈が分かれる場合は質問として返す。
- 画面設計そのものの議論が必要な場合は人間レビューへ返す。
What ships with it
8 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.
- 11d ago First seen · 69 lines · 30 tokens per session scan A a9965750df05
a11y Accessible Name Basics is a skill published in the GitHub repository s977043/river-review (3 stars, last pushed today), licensed MIT. It adds 30 tokens to every session and 736 once invoked, about $0.0002 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 2026-08-31.
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