Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
View on GitHubJanuary 24, 2026
Select agents to install to:
npx add-skill https://github.com/github/awesome-copilot/blob/cfb896c2325b8c0527a88362846d25b8080c5071/skills/webapp-testing/SKILL.md -a claude-code --skill webapp-testingInstallation paths:
.claude/skills/webapp-testing/# Web Application Testing
This skill enables comprehensive testing and debugging of local web applications using Playwright automation.
## When to Use This Skill
Use this skill when you need to:
- Test frontend functionality in a real browser
- Verify UI behavior and interactions
- Debug web application issues
- Capture screenshots for documentation or debugging
- Inspect browser console logs
- Validate form submissions and user flows
- Check responsive design across viewports
## Prerequisites
- Node.js installed on the system
- A locally running web application (or accessible URL)
- Playwright will be installed automatically if not present
## Core Capabilities
### 1. Browser Automation
- Navigate to URLs
- Click buttons and links
- Fill form fields
- Select dropdowns
- Handle dialogs and alerts
### 2. Verification
- Assert element presence
- Verify text content
- Check element visibility
- Validate URLs
- Test responsive behavior
### 3. Debugging
- Capture screenshots
- View console logs
- Inspect network requests
- Debug failed tests
## Usage Examples
### Example 1: Basic Navigation Test
```javascript
// Navigate to a page and verify title
await page.goto('http://localhost:3000');
const title = await page.title();
console.log('Page title:', title);
```
### Example 2: Form Interaction
```javascript
// Fill out and submit a form
await page.fill('#username', 'testuser');
await page.fill('#password', 'password123');
await page.click('button[type="submit"]');
await page.waitForURL('**/dashboard');
```
### Example 3: Screenshot Capture
```javascript
// Capture a screenshot for debugging
await page.screenshot({ path: 'debug.png', fullPage: true });
```
## Guidelines
1. **Always verify the app is running** - Check that the local server is accessible before running tests
2. **Use explicit waits** - Wait for elements or navigation to complete before interacting
3. **Capture screenshots on failure** - Take screenshots to help debug issues
4. **Clean up resourc