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Updated 2mo ago

by liarjsdev

liarjs-skills

Agent Skills for browser fingerprint testing: run liarjs from Claude Code, Codex, Cursor or Copilot to score a browser against itself - 40 consistency checks over canvas, WebGL, WebGPU, audio, fonts and WebRTC, cross-checked against the TLS/HTTP layer. Playwright and Puppeteer harness QA, CI regression gates, headless detection triage.

  • Multi-agent — Targets three or more agents
Works with
  • Claude
  • Codex
  • Cursor
  • Copilot
View on GitHub (opens in a new tab)

5 GitHub stars (5)

Stars gained per day · daily snapshots since Sep 26
Stars gained per day, Sep 26 to Oct 25: −421 in total; the busiest day was Oct 1 with +44 stars.Sep 27: +23 starsSep 28: +3 starsSep 29: 0 starsSep 30: +3 starsOct 1: +44 starsOct 2: +17 starsOct 3: 0 starsOct 4: 0 starsOct 5: 0 starsOct 6: 0 starsOct 7: +1 starsOct 8: +1 starsOct 9: −513 starsOct 10: −1 starsOct 11: 0 starsOct 12: 0 starsOct 13: 0 starsOct 14: 0 starsOct 15: 0 starsOct 16: 0 starsOct 17: 0 starsOct 18–19 (2 days): 0 stars (about 0/day)Oct 20: 0 starsOct 21: 0 starsOct 22–23 (2 days): 0 stars (about 0/day)Oct 24: 0 starsOct 25: +1 stars
Stars gained between daily snapshots
PeriodNew stars
Sep 27+23
Sep 28+3
Sep 290
Sep 30+3
Oct 1+44
Oct 2+17
Oct 30
Oct 40
Oct 50
Oct 60
Oct 7+1
Oct 8+1
Oct 9−513
Oct 10−1
Oct 110
Oct 120
Oct 130
Oct 140
Oct 150
Oct 160
Oct 170
Oct 18–19 (2 days)0
Oct 200
Oct 210
Oct 22–23 (2 days)0
Oct 240
Oct 25+1
  • 4 skills (4 skills found in its SKILL.md files)
  • 0 forks (0 forks)
  • 2mo ago last update (Last updated 2mo ago)

Install

Skills CLI

npx skills add liarjsdev/liarjs-skills

Asks which skills and agents to install. Just one: npx skills add liarjsdev/liarjs-skills --skill browser-fingerprint-audit — add -g for every project.

Claude Code

git clone https://github.com/liarjsdev/liarjs-skillscp -r "liarjs-skills/skills/browser-fingerprint-audit" ~/.claude/skills/

Copies the browser-fingerprint-audit skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add liarjsdev/liarjs-skills

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • browser-fingerprint-audit

    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 fin…

    skills/browser-fingerprint-audit/SKILL.md on GitHub (opens in a new tab)

  • fingerprint-ci-gate

    Gate a build on browser fingerprint regressions with liarjs - save a baseline scan as JSON, diff later runs against it, and fail the job when the consistency score falls below a floor. Use when asked to add a fingerprint or headless-detection check to GitHub Actions, GitLab CI or another pipeline, to catch a regression in a Chromium build or scraping harness before it ships, or to track how a fin…

    skills/fingerprint-ci-gate/SKILL.md on GitHub (opens in a new tab)

  • fingerprint-failure-triage

    Read a liarjs fingerprint report and attribute each failing check to the component that produced it - what the check id measures, whether the signal comes from the launch configuration, the page-modifying layer, the network path or the machine image, and which failures are inherent to headless or datacenter environments. Use when a fingerprint scan came back with a low score, or when a check id s…

    skills/fingerprint-failure-triage/SKILL.md on GitHub (opens in a new tab)

  • playwright-stealth-verify

    Check whether a Playwright, Puppeteer, Selenium or CDP-driven browser presents a coherent fingerprint, using liarjs as a library against a Page you already have - navigator.webdriver, HeadlessChrome tokens, worker versus main-thread identity, patched-API integrity, WebGL versus WebGPU GPU identity. Use when asked whether an automated browser looks like a normal one, when a headless setup or a ste…

    skills/playwright-stealth-verify/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.