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Web App Testing

Category: Engineering  ·  Sub-category: testing  ·  Last updated:
type:review
Use when the user wants to live-test a WEB app/site end-to-end in a real browser and get a works/doesn''t-work + UI/UX report — not just write Playwright code. Triggers: "test my web app", "QA this site", "run E2E on the web app", "click through every feature and tell me what breaks", "review the UX of this web app", "does my web app work", "test the deployed site". Drives a real Chrome via Playwright over CDP (default http://127.0.0.1:9222), enumerates features from the DOM/ARIA tree, exercises each, captures screenshots + console/page/network errors, and emits a structured report. Sibling of android-app-testing and desktop-app-testing (shared report format). Does NOT fire for: writing a one-off Playwright script (use webwright), pure web design/build with no testing, or backend/API-only testing.

From the source SKILL.md

Live, end-to-end testing of a web application in a real browser: drive every feature, watch for breakage (console errors, failed requests, broken flows), review UI/UX, and emit a structured works/doesn't-work report. Companion to android-app-testing and desktop-app-testing — all three share one report format (references/report-format.md) so results compare across platforms.

What this skill does

Web App Testing is a community-contributed Claude Code skill in the testing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/web-app-testing/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user wants to live-test a WEB app/site end-to-end in a real browser and get a works/doesn''t-work + UI/UX report — not just write Playwright code. Triggers: "test my web app", "QA this site", "run E2E on the web app", "click through every feature and tell me what breaks", "review the UX of this web app", "does my web app work", "test the deployed site".

Who uses this skill

The Web App Testing Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 117,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/web-app-testing
curl -L https://claudskills.com/skills/web-app-testing/SKILL.md \
  -o ~/.claude/skills/web-app-testing/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/web-app-testing/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/web-app-testing/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\web-app-testing\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Web App Testing Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/web-app-testing/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Web App Testing skill do?
Use when the user wants to live-test a WEB app/site end-to-end in a real browser and get a works/doesn''t-work + UI/UX report — not just write Playwright code. Triggers: "test my web app", "QA this site", "run E2E on the web app", "click through every feature and tell me what breaks", "review the UX of this web app", "does my web app work", "test the deployed site". Drives a real Chrome via Playwright over CDP (default http://127.0.0.1:9222), enumerates features from the DOM/ARIA tree, exercises each, captures screenshots + console/page/network errors, and emits a structured report. Sibling of android-app-testing and desktop-app-testing (shared report format). Does NOT fire for: writing a one-off Playwright script (use webwright), pure web design/build with no testing, or backend/API-only testing.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Web App Testing skill?
Use Web App Testing when your Claude Code task falls under the Engineering category — specifically in the testing area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Web App Testing" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Web App Testing skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Web App Testing is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
jmagar. (2026). Web App Testing [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/web-app-testing/
BibTeX
@misc{web-app-testing-2026,
  author    = {jmagar},
  title     = {Web App Testing [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/web-app-testing/}
}

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