Web Interface Guidelines Reviewer
vercel-labs/openreview
Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my…
WCAG 3.0 preview: outcomes, APCA contrast and functional needs.
Install Wcag3 Preview
$ npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Community-Access/accessibility-agents wcag3-preview --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Community-Access/accessibility-agents.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/wcag3-preview .claude/skills/wcag3-preview && rm -rf skills-srcUse ~/.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/
Install the "wcag3-preview" agent skill from https://github.com/Community-Access/accessibility-agents/tree/main/skills/wcag3-preview into .claude/skills/wcag3-preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "wcag3-preview", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Community-Access/accessibility-agents/tree/main/skills/wcag3-previewType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Community-Access/accessibility-agents wcag3-preview --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Community-Access/accessibility-agents.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/wcag3-preview .agents/skills/wcag3-preview && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "wcag3-preview" agent skill from https://github.com/Community-Access/accessibility-agents/tree/main/skills/wcag3-preview into .agents/skills/wcag3-preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "wcag3-preview", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Community-Access/accessibility-agents wcag3-preview --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Community-Access/accessibility-agents.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/wcag3-preview .cursor/skills/wcag3-preview && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "wcag3-preview" agent skill from https://github.com/Community-Access/accessibility-agents/tree/main/skills/wcag3-preview into .cursor/skills/wcag3-preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "wcag3-preview", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Community-Access/accessibility-agents.git --path skills/wcag3-preview--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Community-Access/accessibility-agents wcag3-preview --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Community-Access/accessibility-agents.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/wcag3-preview .gemini/skills/wcag3-preview && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "wcag3-preview" agent skill from https://github.com/Community-Access/accessibility-agents/tree/main/skills/wcag3-preview into .gemini/skills/wcag3-preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "wcag3-preview", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Community-Access/accessibility-agents wcag3-previewInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Community-Access/accessibility-agents.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/wcag3-preview .github/skills/wcag3-preview && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "wcag3-preview" agent skill from https://github.com/Community-Access/accessibility-agents/tree/main/skills/wcag3-preview into .github/skills/wcag3-preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "wcag3-preview", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Community-Access/accessibility-agents wcag3-preview --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Community-Access/accessibility-agents.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/wcag3-preview .opencode/skills/wcag3-preview && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "wcag3-preview" agent skill from https://github.com/Community-Access/accessibility-agents/tree/main/skills/wcag3-preview into .opencode/skills/wcag3-preview/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "wcag3-preview", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
wcag3-preview- GitHub stars
- 423
- Token cost
- ~689 tokens
- SKILL.md length
- 335 words
- Files
- 2
- Skills in repo
- 108
- Repo updated
- First seen
- Licence
- MIT
At a glance
WCAG 3.0 preview: outcomes, APCA contrast and functional needs.
- Works in 4 steps: Read the audit report → For each finding, note whether WCAG 3.0… → Identify new areas WCAG 3.0 would check → …
- Tasks that involve Accessibility
- SKILL.md covers WCAG 3.0 Preview Agent, Key Changes from WCAG 2.2 to 3.0, Delta Analysis Mode and Preparation Recommendations, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Wcag3 Preview is an agent skill from Community-Access/accessibility-agents. WCAG 3.0 preview: outcomes, APCA contrast and functional needs.
Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).
It sits in Frontend & Design, covering Accessibility. The repository describes itself as: Accessibility review agents for Claude Code, GitHub Copilot, and Claude Desktop. Eleven specialists that enforce WCAG 2.2 AA compliance so AI coding tools stop generating… The licence is MIT.
When your agent uses it
- Tasks that involve Accessibility
Example prompts
- “/wcag3-preview”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Read the audit report
- For each finding, note whether WCAG 3.0 would change its severity
- Identify new areas WCAG 3.0 would check
- Produce a migration readiness summary
What it can do on your machine
Read from SKILL.md and the folder at commit decf6ba. 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
Wcag3 Preview loads about 689 tokens when it runs. Until then it costs about 19 tokens; SKILL.md has 335 words of instructions outside code blocks.
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
The full file from Community-Access/accessibility-agents at commit decf6ba, republished under its MIT licence (© Community-Access). 335 words, ~689 tokens.
Download SKILL.mdSave it as
.claude/skills/wcag3-preview/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- wcag3-preview
- description
- WCAG 3.0 preview: outcomes, APCA contrast and functional needs.
- license
- MIT
- disable-model-invocation
- true
- metadata.tier
- specialist
- metadata.domain
- cross-cutting
- metadata.output
- guidance
- metadata.effort
- medium
- metadata.title
- WCAG 3.0 Preview
WCAG 3.0 Preview Agent
You help teams understand what WCAG 3.0 (W3C Accessibility Guidelines 3.0) will require and how to prepare for the transition from WCAG 2.2.
Critical disclaimer you MUST state in every response:
WCAG 3.0 is currently an early Working Draft and is NOT yet a W3C standard. Do NOT abandon WCAG 2.2 compliance. All current legal and contractual obligations reference WCAG 2.x. This information is for forward-planning only.
Key Changes from WCAG 2.2 to 3.0
Conformance Model
Each WCAG 2.2, with its WCAG 3.0.
| WCAG 2.2 | WCAG 3.0 |
|---|---|
| Pass/fail per success criterion | Scoring-based outcomes (0-4 scale) |
| Three levels: A, AA, AAA | Bronze, Silver, Gold (proposed) |
| Per-page conformance | Process-level and technology-level conformance |
| All-or-nothing per criterion | Partial credit for partial completion |
APCA Contrast Algorithm
Each aspect, with its WCAG 2.x formula and APCA.
| Aspect | WCAG 2.x Formula | APCA |
|---|---|---|
| Algorithm | Relative luminance ratio | Lightness contrast (Lc) |
| Threshold | 4.5:1 normal, 3:1 large | Varies by font size + weight |
| Polarity | Symmetric | Asymmetric (dark-on-light ≠ light-on-dark) |
| Range | 1:1 to 21:1 | Lc 0 to Lc 106 |
New Scope
Each area, with its WCAG 2.2 and WCAG 3.0.
| Area | WCAG 2.2 | WCAG 3.0 |
|---|---|---|
| Native apps | Guidance only | Normative |
| XR/VR | Not covered | In scope |
| Emerging tech | Not covered | Extensible framework |
| Cognitive | Limited | Expanded |
Delta Analysis Mode
When the user has an existing audit report:
- Read the audit report
- For each finding, note whether WCAG 3.0 would change its severity
- Identify new areas WCAG 3.0 would check
- Produce a migration readiness summary
Preparation Recommendations
- Achieve WCAG 2.2 AA first — this is the legal standard
- Start using APCA as a secondary metric
- Expand cognitive testing
- Document your process — 3.0 values process-level conformance
- Follow the Working Draft — subscribe to W3C AG Working Group updates
Output contract
Answer the question. Keep the answer to what was asked, cite the criterion or API by name, and stop. Do not append a checklist that was not requested.
Shared rules, dispatch contract and schemas: skills/a11y-core/SKILL.md.
Authoritative specifications for this skill: skills/a11y-core/references/sources.md.
© Community-Access, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in skills/wcag3-preview of Community-Access/accessibility-agents.
- SKILL.md
- agents/openai.yaml
Open the folder on GitHubat commit decf6ba
Compare with similar skills
Wcag3 Preview 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Wcag3 Preview this skillCommunity-Access/accessibility-agents | 423 | — | ~689 | Automated safety check: Pass | MIT | |
| Web Interface Guidelines Reviewervercel-labs/openreview | 1.7k | 97 repos | ~308 | Automated safety check: Pass | None | |
| Accessibility Reviewmarkmead/hyperui | 12k | 1 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Web Animation DesignbaptisteArno/typebot.io | 11k | 2 repos | ~2.7k | Automated safety check: Pass | Custom licence | |
| Accessibility Fixeribelick/ui-skills | 9.5k | 4 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Wcag Audit PatternsvmDeshpande/ai-agent-automation | 178 | 11 repos | ~610 | Automated safety check: Pass | Apache-2.0 |
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- Official
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Guides easing, timing and animation choices for UI motion, based on a web animation course, and reviews existing animations in a before-and-after table.
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Audits and fixes HTML accessibility problems such as ARIA labels, keyboard navigation, focus management, contrast and form errors with minimal changes.
Wcag Audit Patterns
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Baseline UI
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Applies a fixed set of UI rules for stack, components, interaction, animation, typography and layout, or reviews a file against them with concrete fixes.
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Related
Categories
Questions about Wcag3 Preview
What does Wcag3 Preview do?
WCAG 3.0 preview: outcomes, APCA contrast and functional needs. Wcag3 Preview is an agent skill from Community-Access/accessibility-agents.0 preview: outcomes, APCA contrast and functional needs.
When should I use Wcag3 Preview?
Wcag3 Preview fits situations like: tasks that involve Accessibility.
How do I install Wcag3 Preview in Claude Code?
Run `npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a claude-code`. Or copy the skill folder (skills/wcag3-preview in Community-Access/accessibility-agents) into .claude/skills/wcag3-preview in your project. Claude Code loads it when a task matches its description.
How do I install Wcag3 Preview in Codex?
Run `npx skills add Community-Access/accessibility-agents --skill wcag3-preview -a codex`. Or copy the skill folder (skills/wcag3-preview in Community-Access/accessibility-agents) into .agents/skills/wcag3-preview in your project. Codex loads it when a task matches its description.
Can I use Wcag3 Preview 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 Community-Access/accessibility-agents --skill wcag3-preview -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/wcag3-preview, .gemini/skills/wcag3-preview, .github/skills/wcag3-preview and .opencode/skills/wcag3-preview in your project.
What does Wcag3 Preview need to run?
SKILL.md names no scripts, command-line tools or credentials: Wcag3 Preview is instructions for the agent only.
Does Wcag3 Preview 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 Wcag3 Preview 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 Wcag3 Preview use?
Wcag3 Preview is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Wcag3 Preview use?
About 689 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Wcag3 Preview?
Skills that share tags, products or a category with Wcag3 Preview: 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 Wcag3 Preview?
Community-Access (a GitHub organization) maintains it in Community-Access/accessibility-agents, which has 423 GitHub stars. The repository holds 108 skills in this directory. The repository was last updated on September 23, 2026.
Source: Community-Access/accessibility-agents on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.