seo-multimedia-accessibility

seo-multimedia-accessibility is a skill for Claude Code, Codex from jrr996shujin-png/openclaw-seo-aeo-skills. It costs 78 tokens per session (1,090 once invoked), scanned A, original, MIT.

A website check for whether images and videos provide text alternatives. Alt text describes an image in HTML, while captions or transcripts make spoken video content available as text.

In plain words
What is it for?
It reviews image alt-text coverage and quality, decorative-image labels, figure captions, video embeds, and available caption or subtitle tracks.
Why use it?
It finds multimedia that search services, AI systems, or people using assistive technology may not otherwise understand.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It reviews image alt-text coverage and quality, decorative-image labels, figure captions, video embeds, and available caption or subtitle tracks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jrr996shujin-png/openclaw-seo-aeo-skills/multimedia-accessibility
Install

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.

Any agent
npx skills add jrr996shujin-png/openclaw-seo-aeo-skills --skill multimedia-accessibility
Clone the repo
git clone --depth 1 https://github.com/jrr996shujin-png/openclaw-seo-aeo-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for seo-multimedia-accessibility

README.md
[![agentmods](https://agentmods.dev/badge/skills/jrr996shujin-png/openclaw-seo-aeo-skills/multimedia-accessibility/github.svg)](https://agentmods.dev/skills/jrr996shujin-png/openclaw-seo-aeo-skills/multimedia-accessibility)
Your own site
<a href="https://agentmods.dev/skills/jrr996shujin-png/openclaw-seo-aeo-skills/multimedia-accessibility"><img src="https://agentmods.dev/badge/skills/jrr996shujin-png/openclaw-seo-aeo-skills/multimedia-accessibility/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.

agentmods 80×15 button for seo-multimedia-accessibility

Your own site · 80×15
<a href="https://agentmods.dev/skills/jrr996shujin-png/openclaw-seo-aeo-skills/multimedia-accessibility"><img src="https://agentmods.dev/badge/skills/jrr996shujin-png/openclaw-seo-aeo-skills/multimedia-accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,090 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00078 $0.01090
Opus 5 $0.00039 $0.00545
Sonnet 5 $0.00016 $0.00218
Haiku 4.5 $0.00008 $0.00109

Measured 12d ago against content hash 0f1a08576485, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

seo-multimedia-accessibility 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 12d 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.

seo-aeo-diagnostics/multimedia-accessibility/SKILL.md · 105 lines

What it actually says

多媒体可访问性诊断模块

本模块负责检查网站多媒体内容对搜索引擎和 AI 引擎的可访问性,满分 10 分。AI 引擎无法"看"图片或"听"视频——它们完全依赖文本替代信息(alt 文本、转录稿)来理解多媒体内容。

检查项

1. 图片 Alt 文本(6 分)

检查方法:

  1. 提取所有 <img> 标签
  2. 分类统计:
    • alt 属性且内容非空的图片数
    • alt 属性为空或缺失的图片数
    • 装饰性图片(alt="" 是正确做法,如分隔线、背景图标)
  3. 对有 alt 文本的图片,评估质量:
    • 是否描述性("蓝色登山鞋" 好于 "image1.jpg")
    • 是否过长(建议 < 125 字符)
    • 是否堆砌关键词("SEO 优化 SEO 排名 SEO 工具" 是反模式)
    • 是否与上下文相关
  4. 检查 <figure> + <figcaption> 的使用情况
  5. 检查图片是否有 title 属性(加分项,非必须)

评分:

  • 6 分:alt 覆盖率 > 90% + alt 质量高 + 装饰性图片正确标记
  • 4 分:alt 覆盖率 70-90%,或覆盖率高但质量一般
  • 2 分:alt 覆盖率 40-70%
  • 0 分:alt 覆盖率 < 40% 或全部是低质量 alt(如文件名)

输出格式:

状态:✅/⚠️/❌
图片总数:X 个
Alt 文本覆盖率:X%(Y 个有 alt / Z 个需要 alt)

Alt 文本质量抽样:
| 图片 | Alt 文本 | 评估 |
|------|----------|------|
| logo.png | "公司 Logo" | ✅ 描述性 |
| banner.jpg | "IMG_2024" | ❌ 文件名 |
| icon.svg | "" | ✅ 装饰性,正确留空 |

缺失 alt 的图片:
- src="..." (位于 [上下文])
- ...

figcaption 使用:X 处
修复建议:(具体建议,含改写示例)

2. 视频转录文字(4 分)

检查方法:

  1. 检测页面中的视频嵌入:
    • <video> 标签
    • YouTube iframe(youtube.com/embed/
    • Vimeo iframe
    • 其他视频平台嵌入
  2. 对于 <video> 标签,检查:
    • 是否有 <track kind="captions"><track kind="subtitles">
    • 是否有 WebVTT 或 SRT 字幕文件引用
  3. 检查视频附近是否有:
    • 文字转录稿(transcript)
    • 内容摘要段落
    • 时间戳列表
  4. 如果页面无视频,此项给满分(不适用 = 通过)

评分:

  • 4 分:无视频(N/A)或有视频且有字幕/转录稿
  • 3 分:有视频,有部分文字描述但无完整转录
  • 1 分:有视频,仅有标题无任何文字内容
  • 0 分:有视频但无任何文字替代信息

输出格式:

状态:✅/⚠️/❌(或 N/A 无视频)
视频数量:X 个
视频类型:自托管 / YouTube / Vimeo / 其他

各视频可访问性:
| 视频 | 字幕 | 转录稿 | 摘要 |
|------|------|--------|------|
| [视频1标题/URL] | 有/无 | 有/无 | 有/无 |

修复建议:(具体建议,如添加 YouTube 字幕、在视频下方添加摘要等)

汇总输出

## 多媒体可访问性 — 得分 X/10

| 检查项 | 得分 | 状态 |
|--------|------|------|
| 图片 Alt 文本 | X/6 | ✅/⚠️/❌ |
| 视频转录文字 | X/4 | ✅/⚠️/❌/N/A |

关键发现:(1-2 句总结)
优先修复:(对 AI 可见性影响最大的改进项)
Changes

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.

  1. 12d ago First seen · 105 lines · 78 tokens per session scan A 0f1a08576485

Subscribe to this mod's changes

seo-multimedia-accessibility is a skill published in the GitHub repository jrr996shujin-png/openclaw-seo-aeo-skills (11 stars, last pushed 6mo ago), licensed MIT. It adds 78 tokens to every session and 1,090 once invoked, about $0.0004 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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