# Accesslint Diff (agent 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.

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

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/sickn33/agentic-awesome-skills |
| Skill path | skills/accesslint-diff/SKILL.md |
| Skill name | accesslint-diff |
| GitHub stars | 47,305 |
| Installs on skills.sh | not listed |
| License | MIT |
| Skills in repo | 7 |
| Plugin marketplace | agentic-awesome-skills |
| Official | no |
| Works with | Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode |
| Category | Security |
| Last commit | Oct 6, 2026 |

## When it triggers

- Use scan for a full audit with no diffing.

## Add this skill

### Claude Code

```sh
/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 skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
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
```

### Cursor

```sh
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
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/sickn33-accesslint-diff
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