⚡ StealthCoder - Your Invisible Coding Assistant for LeetCode & Interviews

StealthCoder is a Chrome extension that secretly assists you during live coding interviews on LeetCode, HackerRank, etc. It uses top AI models like Google Gemini 2.5 and Claude Sonnet — and is designed for maximum stealth: no popups, no flashing UI, no detection on Zoom or Google Meet.

✨ Features

• 🔥 Model Choice: Gemini 2.5, Claude Sonnet, or GPT-4
• 🔒 Secure API Key: User enters API key one time, saved safely inside Chrome
• 🛡️ No Backend Needed: Direct API calls from your browser
• 👻 Stealth Mode: Invisible UI triggered with secret keyboard shortcuts
• ⚡ Ultra Fast: No server = No latency
• 🧠 Smart Prompting: AI understands problems and suggests clean solutions
• 🛠️ Customizable: User settings saved and easily editable

📂 Project Structure

/stealthcoder-extension
├── public/
│   ├── icons/
│   │   ├── icon16.png
│   │   ├── icon48.png
│   │   └── icon128.png
│   └── manifest.json
├── src/
│   ├── background/
│   │   └── service-worker.ts
│   ├── content-scripts/
│   │   └── inject-help.ts
│   ├── popup/
│   │   ├── Popup.tsx
│   │   ├── popup.css
│   │   └── index.html
│   ├── options/
│   │   ├── SettingsPage.tsx
│   │   ├── options.css
│   │   └── index.html
│   ├── assets/
│   │   └── styles.css
│   ├── utils/
│   │   └── apiHandler.ts
│   ├── background.ts
│   └── content.tsx
├── vite.config.ts
├── tsconfig.json
├── package.json
└── README.md

🛠️ How It Works

1. Install the extension in Chrome (Developer Mode)
2. On first use, a Settings Page opens:
   • Select your preferred AI model
   • Enter your API key
3. Start solving coding problems!
4. Press a secret shortcut (Ctrl + Shift + A) to fetch hidden AI help
5. Help appears subtly inside the page (ghost mode)

🔧 Setup Instructions

Clone this repo:

git clone https://github.com/yourusername/stealthcoder-extension.git
cd stealthcoder-extension

Install dependencies:

npm install

Build the extension:

npm run build

Load extension into Chrome:

1. Open chrome://extensions/
2. Enable Developer Mode
3. Click "Load unpacked" and select the /dist folder after build

🔐 API Key Management

• Your API keys are stored using chrome.storage.local
• They never leave your browser
• If you want to change the model or key, go to the Settings Page in the extension popup

🧠 Future Improvements

• Add backup key management
• Auto-detect problem types (DP, Trees, Greedy) and adjust prompts
• Fake human typing simulation
• Support for more platforms (HackerRank, CodeSignal, CoderPad)

⚠️ Disclaimer

This extension is for educational purposes only. Use it ethically and responsibly. Passing interviews should be based on real skill, not just hidden tools! 🙏

🧑‍💻 Author

Rahees Ahmed — Fullstack AI Developer

Built with ❤️, React, Vite, and TypeScript

🚀 Let's Build The Future Together!