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    🧪 Webapp Tester

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    Professional E2E Browser Testing The WebApp Tester skill provides a production-grade automated testing workflow using Playwright.

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    See it in action

    You say

    Run an E2E test of the login flow on both desktop and mobile viewports. Check for success redirects and report any UI errors or failures found during the process.

    Your agent does

    Browser Test Results

    • Coverage: Chromium, iPhone 13
    • Steps:
      • PASS: open login page
      • FAIL: submit valid credentials: expected /dashboard but stayed on /login; visible error "Account locked"
    • Artifacts:
      • screenshot: test-results/failure.png
    • Likely fix: Update seed data for the test user.

    What you get

    Test critical user journeys like login and checkout on multiple viewports.Debug flaky UI interactions by capturing traces and console logs.Verify responsive layouts using iPhone and Android emulation profiles.Automate visual regression testing with full-page screenshot comparisons.Persist authentication sessions to speed up multi-page test suites.

    About this skill

    Professional E2E Browser Testing

    The WebApp Tester skill provides a production-grade automated testing workflow using Playwright. It solves the common problem of "flaky" or shallow AI-generated tests by implementing a structured, artifact-driven approach to browser automation. Instead of just clicking buttons and hoping for the best, this skill ensures your AI agent acts like a professional QA engineer.

    What it does

    • Comprehensive Coverage: Tests flows across desktop and mobile viewports (iOS/Android emulation).
    • Deep Diagnostics: Automatically captures screenshots, Playwright traces, and console logs on failure.
    • Smart Auth: Manages persistent authentication states, preventing redundant login steps across test suites.
    • Visual Regression: Implements screenshot comparison to catch UI regressions that functional tests might miss.
    • Step-Level Reporting: Provides clear, human-readable summaries of exactly where a flow broke.

    Why use this skill?

    Prompting an AI to "test my site" often results in generic scripts that fail on modern React/Next.js apps. This skill enforces test.step() patterns, proper locators, and environmental awareness. It handles dev servers, manages mobile emulation profiles, and produces actionable debugging data that tells you exactly why a test failed—saving you hours of manual reproduction.

    Supported Tools

    • Frameworks: Playwright (primary), Chromium, WebKit, Firefox.
    • Environments: Local dev servers (localhost), staging, and production.
    • Contexts: Mobile Safari, Mobile Chrome, Desktop Responsive.

    How to install

    Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.

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