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Accesslint Diff

Accesslint Diff is an agent skill (a SKILL.md file) from sickn33/agentic-awesome-skills. Diff a live page's accessibility violations against a baseline — by default compares uncommitted changes (stash-based), or pass --branch [] to diff… It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 47,305 GitHub stars across a repository of 7 listed skills.

github.com/sickn33/agentic-awesome-skills/skills/accesslint-diff (opens in a new tab)

  • Multi-skill repo
  • Plugin marketplace
  • Security
  • Actively maintained
View on GitHub (opens in a new tab)

Add this skill

Claude

This repository is a Claude Code plugin marketplace. In Claude Code:

/plugin marketplace add sickn33/agentic-awesome-skills
/plugin   # browse agentic-awesome-skills and install the plugin that contains accesslint-diff

In the Claude apps, zip the accesslint-diff folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git
cp -r agentic-awesome-skills/skills/accesslint-diff .agents/skills/accesslint-diff   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git
cp -r agentic-awesome-skills/skills/accesslint-diff .cursor/skills/accesslint-diff   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

Diff a live page's accessibility violations against a baseline — by default compares uncommitted changes (stash-based), or pass --branch [] to diff against a branch. Reports only new violations introduced, violations fixed, and pre-existing count. Use scan for a full audit with no diffing. Default branch: !git symbolic-ref refs/remotes/origin/HEAD --short 2>/dev/null | sed 's|./||' || echo main

When it triggers

  • Use scan for a full audit with no diffing.

More skills in sickn33/agentic-awesome-skills

7 skills are listed from this repository.

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More security skills

All Security

FAQ

Accesslint Diff FAQ

Still curious? Email info@appsgit.com.

What is the Accesslint Diff skill?

Accesslint Diff is an agent skill (a SKILL.md file) from sickn33/agentic-awesome-skills. Diff a live page's accessibility violations against a baseline — by default compares uncommitted changes (stash-based), or pass --branch [] to diff… It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 47,305 GitHub stars across a repository of 7 listed skills. Its SKILL.md lives at github.com/sickn33/agentic-awesome-skills/skills/accesslint-diff.

How do I install the Accesslint Diff skill?

In Claude Code, run /plugin marketplace add sickn33/agentic-awesome-skills, then install its plugin from /plugin. For Codex or Cursor, copy the accesslint-diff folder into .agents/skills/ or .cursor/skills/.

Is the Accesslint Diff skill free?

Yes. The repository is open source under the MIT license.

Is Accesslint Diff maintained?

The repository's most recent commit was on Oct 6, 2026. Its latest release is v19.0.1. appsgit only lists skills from repositories with a commit in the last six months.