Fatih Kadir Akın

Build a developer-focused code snippet manager using HTML5, CSS3, and JavaScript. Create a clean IDE-like interface with syntax highlighting for 30+ programming languages. Implement a tagging and categorization system for organizing snippets. Add a powerful search function with support for regex and filtering by language/tags. Include code editing with line numbers, indentation guides, and bracket matching. Support public/private visibility settings for each snippet. Implement export/import functionality in JSON and Gist formats. Add keyboard shortcuts for common operations. Create a responsive design that works well on all devices. Include automatic saving with version history. Add copy-to-clipboard functionality with syntax formatting preservation.

Build a Kanban project management board using HTML5, CSS3, and JavaScript. Create a flexible board layout with customizable columns (To Do, In Progress, Done, etc.). Implement drag-and-drop card movement between columns with smooth animations. Add card creation with rich text formatting, labels, due dates, and priority levels. Include user assignment with avatars and filtering by assignee. Implement card comments and activity history. Add board customization with column reordering and color themes. Support multiple boards with quick switching. Implement data persistence using localStorage with export/import functionality. Create a responsive design that adapts to different screen sizes. Add keyboard shortcuts for common actions.

Develop a comprehensive flashcard study system using HTML5, CSS3, and JavaScript. Create an intuitive interface for card creation and review. Implement spaced repetition algorithm for optimized learning. Add support for text, images, and audio on cards. Include card categorization with decks and tags. Implement study sessions with performance tracking. Add self-assessment with confidence levels. Create statistics dashboard showing learning progress. Support import/export of card decks in standard formats. Implement keyboard shortcuts for efficient review. Add dark mode and customizable themes.

Create a habit tracking application using HTML5, CSS3, and JavaScript. Build a clean interface showing daily, weekly, and monthly views. Implement habit creation with frequency, reminders, and goals. Add streak tracking with visual indicators and milestone celebrations. Include detailed statistics and progress graphs. Support habit categories and tags for organization. Implement calendar integration for scheduling. Add data visualization showing patterns and trends. Create a responsive design for all devices. Include data export and backup functionality. Add gamification elements with achievements and rewards.

Develop a web-based image editor using HTML5 Canvas, CSS3, and JavaScript. Create a professional interface with tool panels and preview area. Implement basic adjustments including brightness, contrast, saturation, and sharpness. Add filters with customizable parameters and previews. Include cropping and resizing with aspect ratio controls. Implement text overlay with font selection and styling. Add shape drawing tools with fill and stroke options. Include layer management with blending modes. Support image export in multiple formats and qualities. Create a responsive design that adapts to screen size. Add undo/redo functionality with history states.

Create a command-line network packet analyzer in C using libpcap. Implement packet capture from network interfaces with filtering options. Add protocol analysis for common protocols (TCP, UDP, HTTP, DNS, etc.). Include traffic statistics with bandwidth usage and connection counts. Implement packet decoding with detailed header information. Add export functionality in PCAP and CSV formats. Include alert system for suspicious traffic patterns. Implement connection tracking with state information. Add geolocation lookup for IP addresses. Include command-line arguments for all options with sensible defaults. Implement color-coded output for better readability.

Create a web-based PDF viewer using HTML5, CSS3, JavaScript and PDF.js. Build a clean interface with intuitive navigation controls. Implement page navigation with thumbnails and outline view. Add text search with result highlighting. Include zoom and fit-to-width/height controls. Implement text selection and copying. Add annotation tools including highlights, notes, and drawing. Support document rotation and presentation mode. Include print functionality with options. Create a responsive design that works on all devices. Add document properties and metadata display.

Build a comprehensive weather dashboard using HTML5, CSS3, JavaScript and the OpenWeatherMap API. Create a visually appealing interface showing current weather conditions with appropriate icons and background changes based on weather/time of day. Display a detailed 5-day forecast with expandable hourly breakdown for each day. Implement location search with autocomplete and history, supporting both city names and coordinates. Add geolocation support to automatically detect user's location. Include toggles for temperature units (°C/°F) and time formats. Display severe weather alerts with priority highlighting. Show detailed meteorological data including wind speed/direction, humidity, pressure, UV index, and air quality when available. Include sunrise/sunset times with visual indicators. Create a fully responsive layout using CSS Grid that adapts to all device sizes with appropriate information density.

Build a comprehensive text analysis tool using HTML5, CSS3, and JavaScript. Create a clean interface with text input area and results dashboard. Implement word count, character count, and reading time estimation. Add readability scoring using multiple algorithms (Flesch-Kincaid, SMOG, Coleman-Liau). Include keyword density analysis with visualization. Implement sentiment analysis with emotional tone detection. Add grammar and spelling checking with suggestions. Include text comparison functionality for similarity detection. Support multiple languages with automatic detection. Add export functionality for analysis reports. Implement text formatting and cleaning tools.

Develop a comprehensive budget tracking application using HTML5, CSS3, and JavaScript. Create an intuitive dashboard showing income, expenses, savings, and budget status. Implement transaction management with categories, tags, and recurring transactions. Add interactive charts and graphs for expense analysis by category and time period. Include budget goal setting with progress tracking and alerts. Support multiple accounts and transfer between accounts. Implement receipt scanning and storage using the device camera. Add export functionality for reports in CSV and PDF formats. Create a responsive design with mobile-first approach. Include data backup and restore functionality. Add forecasting features to predict future financial status based on current trends.

Create an interactive Sudoku game using HTML5, CSS3, and JavaScript. Build a clean, accessible game board with intuitive controls. Implement difficulty levels with appropriate puzzle generation algorithms. Add hint system with multiple levels of assistance. Include note-taking functionality for candidate numbers. Implement timer with pause and resume. Add error checking with optional immediate feedback. Include game saving and loading with multiple slots. Create statistics tracking for wins, times, and difficulty levels. Add printable puzzle generation. Implement keyboard controls and accessibility features.

Create a recipe finder application using HTML5, CSS3, JavaScript and a food API. Build a visually appealing interface with food photography and intuitive navigation. Implement advanced search with filtering by ingredients, cuisine, diet restrictions, and preparation time. Add user ratings and reviews with star system. Include detailed nutritional information with visual indicators for calories, macros, and allergens. Support recipe saving and categorization into collections. Implement a meal planning calendar with drag-and-drop functionality. Add automatic serving size adjustment with quantity recalculation. Include cooking mode with step-by-step instructions and timers. Support offline access to saved recipes. Add social sharing functionality for favorite recipes.

Develop a feature-rich chess game using HTML5, CSS3, and JavaScript. Create a realistic chessboard with proper piece rendering. Implement standard chess rules with move validation. Add move highlighting and piece movement animation. Include game clock with multiple time control options. Implement notation recording with PGN export. Add game analysis with move evaluation. Include AI opponent with adjustable difficulty levels. Support online play with WebRTC or WebSocket. Add opening book and common patterns recognition. Implement tournament mode with brackets and scoring.

Develop a web-based music player using HTML5, CSS3, and JavaScript with the Web Audio API. Create a modern interface with album art display and visualizations. Implement playlist management with drag-and-drop reordering. Add audio controls including play/pause, skip, seek, volume, and playback speed. Include shuffle and repeat modes with visual indicators. Support multiple audio formats with fallbacks. Implement a 10-band equalizer with presets. Add metadata extraction and display from audio files. Create a responsive design that works on all devices. Include keyboard shortcuts for playback control. Support background playback with media session API integration.

Build an immersive 3D space exploration game using Three.js and JavaScript. Create a vast universe with procedurally generated planets, stars, and nebulae. Implement realistic spacecraft controls with Newtonian physics. Add detailed planet surfaces with terrain generation and atmospheric effects. Create space stations and outposts for trading and missions. Implement resource collection and cargo management systems. Add alien species with unique behaviors and interactions. Create wormhole travel effects between star systems. Include detailed ship customization and upgrade system. Implement mining and combat mechanics with weapon effects. Add mission system with story elements and objectives.

Create an interactive drawing application using HTML5 Canvas, CSS3, and JavaScript. Build a clean interface with intuitive tool selection. Implement multiple drawing tools including brush, pencil, shapes, text, and eraser. Add color selection with recent colors, color picker, and palettes. Include layer support with opacity and blend mode options. Implement undo/redo functionality with history states. Add image import and export in multiple formats (PNG, JPG, SVG). Support canvas resizing and rotation. Implement zoom and pan navigation. Add selection tools with move, resize, and transform capabilities. Include keyboard shortcuts for common actions.

Build a mindfulness meditation timer using HTML5, CSS3, and JavaScript. Create a serene, distraction-free interface with nature-inspired design. Implement customizable meditation sessions with preparation, meditation, and rest intervals. Add ambient sound options including nature sounds, binaural beats, and white noise. Include guided meditation with customizable voice prompts. Implement interval bells with volume control and sound selection. Add session history and statistics tracking. Create visual breathing guides with animations. Support offline usage as a PWA. Include dark mode and multiple themes. Add session scheduling with reminders.

Build a URL shortening service frontend using HTML5, CSS3, JavaScript and a backend API. Create a clean interface with prominent input field. Implement URL validation and sanitization. Add QR code generation for shortened URLs. Include click tracking and analytics dashboard. Support custom alias creation for URLs. Implement expiration date setting for links. Add password protection option for sensitive URLs. Include copy-to-clipboard functionality with confirmation. Create a responsive design for all devices. Add history of shortened URLs with search and filtering.

Build an interactive typing speed test using HTML5, CSS3, and JavaScript. Create a clean interface with text display and input area. Implement WPM and accuracy calculation in real-time. Add difficulty levels with appropriate text selection. Include error highlighting and correction tracking. Implement test history with performance graphs. Add custom test creation with text import. Include virtual keyboard display showing keypresses. Support multiple languages and keyboard layouts. Create a responsive design for all devices. Add competition mode with leaderboards.

---
name: web-application-testing-skill
description: A toolkit for interacting with and testing local web applications using Playwright.
---

# 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 resources** - Always close the browser when done
5. **Handle timeouts gracefully** - Set reasonable timeouts for slow operations
6. **Test incrementally** - Start with simple interactions before complex flows
7. **Use selectors wisely** - Prefer data-testid or role-based selectors over CSS classes

## Common Patterns

### Pattern: Wait for Element
```javascript
await page.waitForSelector('#element-id', { state: 'visible' });
```

### Pattern: Check if Element Exists
```javascript
const exists = await page.locator('#element-id').count() > 0;
```

### Pattern: Get Console Logs
```javascript
page.on('console', msg => console.log('Browser log:', msg.text()));
```

### Pattern: Handle Errors
```javascript
try {
  await page.click('#button');
} catch (error) {
  await page.screenshot({ path: 'error.png' });
  throw error;
}
```

## Limitations

- Requires Node.js environment
- Cannot test native mobile apps (use React Native Testing Library instead)
- May have issues with complex authentication flows
- Some modern frameworks may require specific configuration