# Browser Fingerprint Audit (agent skill)

> Browser Fingerprint Audit is an agent skill (a SKILL.md file) from liarjsdev/liarjs-skills. Audit a browser fingerprint for internal contradictions with the liarjs CLI - canvas, WebGL, WebGL2, WebGPU, audio, 220 fonts, WebRTC and… It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 518 GitHub stars across a repository of 4 listed skills.

Audit a browser fingerprint for internal contradictions with the liarjs CLI - canvas, WebGL, WebGL2, WebGPU, audio, 220 fonts, WebRTC and timezone probes, scored against the TLS/HTTP/ASN view of the same request. Use when asked to run a browser fingerprint test, see what a fingerprint looks like, check canvas or WebGL fingerprint stability, compare a spoofed profile against a real browser, or find out whether a browser profile is self-consistent. A browser controls its own JavaScript.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/liarjsdev/liarjs-skills |
| Skill path | skills/browser-fingerprint-audit/SKILL.md |
| Skill name | browser-fingerprint-audit |
| GitHub stars | 518 |
| Installs on skills.sh | 79,691 |
| License | MIT |
| Skills in repo | 4 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode |
| Category | Security |
| Last commit | Aug 6, 2026 |

## When it triggers

- Use when asked to run a browser fingerprint test, see what a fingerprint looks like, check canvas or WebGL fingerprint stability, compare a spoofed profile against a real browser, or find out whether a browser profile is self-consistent.

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/liarjsdev/liarjs-skills.git
cp -r liarjs-skills/skills/browser-fingerprint-audit ~/.claude/skills/browser-fingerprint-audit   # personal, or .claude/skills in a project
```

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/liarjsdev/liarjs-skills.git
cp -r liarjs-skills/skills/browser-fingerprint-audit .agents/skills/browser-fingerprint-audit   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/liarjsdev/liarjs-skills.git
cp -r liarjs-skills/skills/browser-fingerprint-audit .cursor/skills/browser-fingerprint-audit   # 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

skills.sh listing: https://www.skills.sh/liarjsdev/liarjs-skills/browser-fingerprint-audit

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Canonical page: https://appsgit.com/skills/liarjsdev-browser-fingerprint-audit
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