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Agent skill

Implement Accessible UI

by videojs in videojs/video.js

Implement accessible Video.js UI. An agent skill from videojs/video.js.

Custom licenceAuto-check passedFrontend & Design

Install Implement Accessible UI

skills CLI
$ npx skills add videojs/video.js --skill implement-accessible-ui -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install videojs/video.js implement-accessible-ui --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/videojs/video.js.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/implement-accessible-ui .claude/skills/implement-accessible-ui && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
implement-accessible-ui
GitHub stars
40k
Token cost
~351 tokens
SKILL.md length
146 words
Files
7 (incl. references)
Skills in repo
38
Repo updated
First seen
Licence
Custom licence

At a glance

Implement accessible Video.js UI. An agent skill from videojs/video.js.

  • Works in 5 steps: Read the component, its rendered output,… → Define expected name, role, value/state,… → Load only the applicable reference → …
  • Keyboard interaction
  • SKILL.md covers Workflow and Example
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Implement Accessible UI is an agent skill from videojs/video.js. Implement accessible Video.js UI. Use for semantics, ARIA, keyboard interaction, focus, screen readers, captions, or live regions.

Its SKILL.md is about 350 tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `references/anti-patterns.md`, `references/aria.md` and `references/focus.md`).

It sits in Frontend & Design, covering Accessibility. The repository describes itself as: Video.js v10 - open source media player framework for HTML and React.

When your agent uses it

  • Keyboard interaction
  • Tasks that involve Accessibility

Example prompts

  • “/implement-accessible-ui”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Read the component, its rendered output, interaction tests, and adjacent accessible controls.
  2. Define expected name, role, value/state, keyboard behavior, focus behavior, and announcements.
  3. Load only the applicable reference
  4. Implement the smallest semantic change and add behavior-focused tests.
  5. Verify keyboard and focus behavior in a browser when interaction changed.

What it can do on your machine

Read from SKILL.md and the folder at commit 74cf8cd. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Implement Accessible UI loads about 351 tokens when it runs, and up to ~11k if it reads all its reference files. Until then it costs about 39 tokens; SKILL.md has 146 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~39
When it runs · the whole SKILL.md, loaded when a task matches
~351
With references · SKILL.md plus every file in references/, read only if the agent opens them
~11k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 146 words (~351 tokens).

“Start from the rendered semantics and interaction contract. Prefer native HTML; add ARIA only where native semantics cannot express the control.”

— opening of SKILL.md by videojs, Custom licence
name
implement-accessible-ui

Read the full SKILL.md on GitHub

Files

SKILL.md and 6 other files (references) in .agents/skills/implement-accessible-ui of videojs/video.js.

  • SKILL.md
  • references/anti-patterns.md
  • references/aria.md
  • references/focus.md
  • references/keyboard.md
  • references/media.md
  • references/react.md

Open the folder on GitHubat commit 74cf8cd

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders. This page covers the copy in videojs/video.js, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Implement Accessible UI next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Implement Accessible UI compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Implement Accessible UI this skillvideojs/video.js40k—~351Automated safety check: PassCustom licence
Web Interface Guidelines Reviewervercel-labs/openreview1.7k98 repos~308Automated safety check: PassNone
Accessibility Reviewmarkmead/hyperui12k1 repos~1.1kAutomated safety check: PassMIT
Web Animation DesignbaptisteArno/typebot.io11k2 repos~2.7kAutomated safety check: PassCustom licence
Accessibility Fixeribelick/ui-skills9.5k4 repos~1.2kAutomated safety check: PassMIT
Wcag Audit PatternsvmDeshpande/ai-agent-automation17811 repos~610Automated safety check: PassApache-2.0

Similar skills

  • Web Interface Guidelines Reviewer

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    Official

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    1.7k GitHub starsUsed in 98 repos~308 tokens
    Frontend & DesignAuto-check passed

  • Accessibility Review

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    12k GitHub starsUsed in 1 repo~1.1k tokens
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  • Accessibility Fixer

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    9.5k GitHub starsUsed in 4 repos~1.2k tokens
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More from videojs/video.js

All 38 skills in this repo

  • Commit PR

    videojs/video.js

    Commit, push, and create or update a Video.js pull request. An agent skill from videojs/video.js.

    40k GitHub stars~445 tokensUpdated today
    Auto-check passed

  • Maintain Tests

    videojs/video.js

    Gate and audit test value. An agent skill from videojs/video.js.

    40k GitHub stars~2.2k tokensUpdated today
    Auto-check passed

  • Write API Reference

    videojs/video.js

    Write generated Video.js API reference pages. An agent skill from videojs/video.js.

    40k GitHub stars~804 tokensUpdated today
    Auto-check passed

  • Write Docs

    videojs/video.js

    Write Video.js guides, concepts, READMEs, and JSDoc. An agent skill from videojs/video.js.

    40k GitHub stars~741 tokensUpdated today
    Auto-check passed

  • Write Locale Translations

    videojs/video.js

    Translate or audit the values in a Video.js locale pack. An agent skill from videojs/video.js.

    40k GitHub stars~723 tokensUpdated today
    Auto-check passed

  • Change Spf Behavior

    videojs/video.js

    Change SPF playback-engine behaviors. An agent skill from videojs/video.js.

    40k GitHub stars~451 tokensUpdated today
    Auto-check passed

Categories

Questions about Implement Accessible UI

What does Implement Accessible UI do?

Implement accessible Video.js UI. An agent skill from videojs/video.js. js.js UI.

When should I use Implement Accessible UI?

Implement Accessible UI fits situations like: keyboard interaction; tasks that involve Accessibility.

How do I install Implement Accessible UI in Claude Code?

Run `npx skills add videojs/video.js --skill implement-accessible-ui -a claude-code`. Or copy the skill folder (.agents/skills/implement-accessible-ui in videojs/video.js) into .claude/skills/implement-accessible-ui in your project. Claude Code loads it when a task matches its description.

How do I install Implement Accessible UI in Codex?

Run `npx skills add videojs/video.js --skill implement-accessible-ui -a codex`. Or copy the skill folder (.agents/skills/implement-accessible-ui in videojs/video.js) into .agents/skills/implement-accessible-ui in your project. Codex loads it when a task matches its description.

Can I use Implement Accessible UI in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add videojs/video.js --skill implement-accessible-ui -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/implement-accessible-ui, .gemini/skills/implement-accessible-ui, .github/skills/implement-accessible-ui and .opencode/skills/implement-accessible-ui in your project.

What does Implement Accessible UI need to run?

SKILL.md names no scripts, command-line tools or credentials: Implement Accessible UI is instructions for the agent only.

Does Implement Accessible UI access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Implement Accessible UI safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Implement Accessible UI use?

Implement Accessible UI has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Implement Accessible UI use?

About 351 tokens (SKILL.md is roughly 1.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 11k tokens, read only when the agent opens those files.

What are the alternatives to Implement Accessible UI?

Skills that share tags, products or a category with Implement Accessible UI: Web Interface Guidelines Reviewer (vercel-labs/openreview, 1.7k stars), Accessibility Review (markmead/hyperui, 12k stars), Web Animation Design (baptisteArno/typebot.io, 11k stars) and Accessibility Fixer (ibelick/ui-skills, 9.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Implement Accessible UI?

videojs (a GitHub organization) maintains it in videojs/video.js, which has 39,909 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on October 8, 2026.

Source: videojs/video.js on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.