JS in HTML Testing

JS in HTML Testing is a Quality skill for Claude Code, published by liaohch3 in claude-tap.

3.1K stars266 forkson liaohch3/claude-tapAdded 2026/08/17+1% in starsRepository updated 2026/08/16

agent-debuggingagent-observabilityai-agentsai-toolsapi-debuggingclaude-codecodexcodex-clicursor-clideveloper-toolsgemini-clihermes-agentkimillmllm-proxyopencodepi-coding-agentproxytracetrace-viewer

Install in seconds

Install JS in HTML Testing

Copy JS in HTML Testing into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/liaohch3/claude-tap/tree/main/.agents/skills/js-in-html-testing ~/.claude/skills/js-in-html-testing

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/liaohch3/claude-tap.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: .agents/skills/js-in-html-testing/SKILL.md in liaohch3/claude-tap
Installs to: ~/.claude/skills/js-in-html-testing
Collection: One of 11 skills cataloged from this repository
Category: Quality — 1354 skills

What JS in HTML Testing does

JS in HTML Testing verifies JavaScript embedded in HTML files using a two-layer strategy: Python unit tests for pure logic and Playwright browser tests for DOM interaction. Use it to test embedded scripts without full end-to-end runs.

JS in HTML Testing is cataloged under Quality on DirSkills. JS in HTML Testing comes from a repository tagged agent-debugging, agent-observability, ai-agents, ai-tools and api-debugging.

Documentation

README

Excerpt

JS-in-HTML Two-Layer Testing Strategy

For JavaScript logic embedded in HTML files (e.g., diff navigation in viewer.html), use a two-layer testing approach.

Layer 1: Python Unit Tests (fast algorithm verification)

Replicate core JS algorithms in Python and verify correctness via pytest.

Best for: pure computation logic, state decisions, matching algorithms — anything that doesn't depend on the DOM.

Example: tests/test_diff_matching.py

This is the opening of the README. Read the full README on GitHub.

Frequently asked about JS in HTML Testing

What else does liaohch3 publish alongside JS in HTML Testing?
JS in HTML Testing is one of 11 skills that DirSkills catalogs from liaohch3/claude-tap, the repository it ships in. Its siblings there include Claude Tap E2E Test, Codex E2E Test and Demo Video Generation. Each one is a separate skill with its own page in this directory, installs the same way JS in HTML Testing does, and is maintained by liaohch3 in that same repository. The rest of the collection is listed on the liaohch3/claude-tap page.
How does JS in HTML Testing compare to other Quality skills?
JS in HTML Testing ranks #427 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of JS in HTML Testing against them. Open each page to compare what they document and how they install.