Can I test both frontend and backend simultaneously?

Yes, the skill includes a helper script that manages multiple server lifecycles concurrently, allowing you to run a backend API and a frontend dev server together.

How does this skill handle large automation scripts?

It uses specialized helper scripts designed to be executed as 'black boxes.' This prevents large amounts of boilerplate code from polluting Claude's context window.

Can I see what the browser is seeing?

Yes, the skill provides capabilities to capture full-page screenshots and output them to specific paths for visual inspection and debugging.

Does it support dynamic or SPA web applications?

Absolutely. The skill follows a pattern of waiting for network idle states and inspecting the rendered DOM to handle React, Vue, and other dynamic frameworks effectively.

Web App Testing Suite

Name: Web App Testing Suite
Author: lifangda

bylifangda

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Browser Automation

Automates the verification and debugging of local web applications using Playwright and intelligent server lifecycle management.

The Web App Testing skill provides a specialized toolkit for developers to perform end-to-end testing and browser automation directly within Claude Code. By leveraging Playwright and custom helper scripts, it simplifies the process of managing local server environments—including complex multi-server setups for frontend and backend—while executing robust UI verification. It is designed to handle dynamic web applications by following a reconnaissance-then-action pattern, allowing Claude to inspect rendered DOM states, capture screenshots, and debug console logs without overwhelming the context window with large script files.

Key Features

01High-fidelity screenshot capture and DOM inspection for UI debugging

02Client-side console log capturing for deep error analysis

03Automated server lifecycle management for complex local environments

0416 GitHub stars

05Headless browser automation using synchronous Playwright scripts

06Dynamic selector discovery for modern JavaScript-heavy applications

Use Cases

01Automating multi-step user workflows for regression testing

02Validating local frontend functionality and UI changes during development

03Debugging visual inconsistencies and network-dependent UI states

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lifangda/claude-plugins webapp-testing

For use in Claude.ai and ChatGPT

Download Skill