AI Code Reviewer

Intelligent code analysis with bring-your-own AI model support

An advanced VS Code extension that provides intelligent code review capabilities across multiple programming languages. Built with a modular AI provider system, it offers real-time code analysis, security vulnerability detection, performance optimization suggestions, and code quality improvements.

🚀 Quick Install

# Clone and install in one command
git clone https://github.com/yourusername/ai-code-reviewer.git
cd ai-code-reviewer
code --install-extension ai-code-reviewer-1.0.0.vsix

That's it! The extension is now installed and ready to use. Press Ctrl+Shift+P and type "AI Reviewer" to get started.

🚀 Features

✨ Core Capabilities

• Multi-Language Support: JavaScript, TypeScript, PHP (more languages coming soon!)
• Real-Time Analysis: Instant code review with detailed issue detection
• Security Focus: Identifies security vulnerabilities and best practices
• Performance Optimization: Suggests performance improvements including SQL N+1 issues
• Code Quality: Detects code smells and quality issues
• Cost Transparency: Tracks AI usage and provides cost estimates

🎯 Review Categories

• Security Vulnerabilities: SQL injection, XSS, unsafe functions, direct superglobal usage
• Performance Issues: Memory leaks, inefficient algorithms, SQL N+1 queries
• Code Quality: Best practices, maintainability, readability
• Framework Best Practices: JavaScript/TypeScript and PHP-specific recommendations
• Error Handling: Missing error handling and edge cases
• Database Issues: N+1 query problems, inefficient SQL patterns

🖥️ User Interface

• Beautiful Results Panel: Interactive webview with severity levels
• Command Palette Integration: Easy access via Ctrl+Shift+P
• Context Menu Integration: Right-click in editor/explorer
• Status Bar Integration: Shows extension status
• Keyboard Shortcuts: Quick access to common functions

📦 Installation

Method 1: Install from VSIX File (Recommended)

1. Download the extension:

   # Option A: Clone and use the included .vsix file
   git clone https://github.com/yourusername/ai-code-reviewer.git
   cd ai-code-reviewer
   
   # Option B: Download directly from releases (when published)
   # Download ai-code-reviewer-1.0.0.vsix from GitHub releases

2. Install via VS Code:

   code --install-extension ai-code-reviewer-1.0.0.vsix

3. Or install via VS Code UI:

   • Open VS Code
   • Go to Extensions (Ctrl+Shift+X)
   • Click "..." menu → "Install from VSIX..."
   • Select the ai-code-reviewer-1.0.0.vsix file

Method 2: Install from Source

1. Clone the repository:

   git clone https://github.com/yourusername/ai-code-reviewer.git
   cd ai-code-reviewer

2. Install dependencies:

   npm install

3. Package the extension:

   npm run package

4. Install the extension:

   code --install-extension ai-code-reviewer-1.0.0.vsix

🎮 Usage

Quick Start

1. Open any supported file (JavaScript, TypeScript, or PHP)
2. Press Ctrl+Shift+P to open command palette
3. Type "AI Reviewer" to see available commands
4. Select a command to start analysis

Note: Currently supports JavaScript, TypeScript, and PHP. More languages coming soon! Want to add support for your favorite language? Contribute to the project!

Available Commands

Command	Description	Shortcut
Review Current File	Analyze the active file	Ctrl+Shift+R
Review Selection	Analyze selected code	Ctrl+Shift+Alt+R
Review Project	Analyze entire project	-
Setup AI Provider	Configure AI settings	-
Generate .reviewignore	Create ignore file	-
Cost Estimate	Show usage costs	-
Usage Statistics	Show review history	-

Example Workflow

JavaScript/TypeScript Example

// Example JavaScript file
function processData(data) {
    var result = []; // ❌ Detected: Use of var keyword
    for (var i = 0; i < data.length; i++) {
        console.log(data[i]); // ❌ Detected: Console.log in production
        if (data[i] == null) { // ❌ Detected: Loose equality
            result.push("empty");
        }
    }
    return result;
}

AI Review Results:

• 🟡 Medium: Use of var keyword (Line 2)
• 🟡 Medium: Console.log found (Line 4)
• 🟡 Medium: Loose equality operator (Line 5)

PHP Example

<?php
// Example PHP file with issues
function getUserData($userId) {
    $user = mysql_query("SELECT * FROM users WHERE id = " . $userId); // ❌ Critical: SQL injection + deprecated MySQL
    var_dump($user); // ❌ Medium: Debug function in production
    return $_GET['data']; // ❌ High: Direct superglobal usage
}
?>

AI Review Results:

• 🔴 Critical: SQL injection vulnerability (Line 3)
• 🔴 High: Deprecated MySQL functions (Line 3)
• 🟡 Medium: Debug function found (Line 4)
• 🔴 High: Direct superglobal usage (Line 5)

Language-Specific Analysis

JavaScript/TypeScript

• Console.log statement detection - Removes debug statements from production
• var keyword usage warnings - Suggests let/const for better scoping
• Loose equality operator (==) detection - Recommends strict equality (===)
• eval() usage security warnings - Identifies dangerous code execution
• setTimeout cleanup - Detects potential memory leaks

PHP

• Debug function detection - Finds var_dump(), print_r() in production code
• Deprecated MySQL function warnings - Alerts about mysql_* functions
• Direct superglobal usage - Warns about $_GET, $_POST without validation
• eval() usage critical security warnings - Identifies dangerous code execution
• Dynamic include/require security checks - Detects potential security risks
• SQL injection patterns - Identifies vulnerable database queries
• N+1 query detection - Finds inefficient database access patterns

Coming Soon

• Python - Syntax and best practices analysis
• Java - Framework-specific recommendations
• C# - .NET best practices and patterns
• C/C++ - Memory management and performance
• SQL - Query optimization and N+1 detection

Want to add support for your favorite language? See our contributing guide or open an issue to request it!

🔧 Configuration

AI Provider Setup

The extension supports multiple AI providers:

{
    "aiReviewer.provider": "deepseek",
    "aiReviewer.apiKeys": {
        "deepseek": "your-deepseek-api-key",
        "openai": "your-openai-api-key",
        "claude": "your-claude-api-key"
    }
}

Supported Providers

Provider	API Key Required	Cost	Best For
DeepSeek	✅	Low	General code review
OpenAI	✅	Medium	Advanced analysis
Claude API	✅	Medium	Security focus
Claude Desktop	❌	Free	Local analysis
Ollama	❌	Free	Self-hosted

File Filtering

{
    "aiReviewer.fileFilters": {
        "maxFileSize": 100000,
        "excludeBinary": true,
        "excludeGenerated": true
    }
}

🛠️ Development

Prerequisites

• Node.js 16.0.0 or higher
• VS Code 1.74.0 or higher
• Git for version control

Setup Development Environment

1. Clone the repository:

   git clone https://github.com/yourusername/ai-code-reviewer.git
   cd ai-code-reviewer

2. Install dependencies:

   npm install

3. Open in VS Code:

   code .

4. Run in debug mode:

   • Press F5 to start debugging
   • Select "Run Extension" from the dropdown
   • A new VS Code window will open with your extension

Project Structure

ai-code-reviewer/
├── src/
│   ├── providers/          # AI provider implementations
│   │   ├── simple-provider.js
│   │   ├── deepseek.js
│   │   ├── openai.js
│   │   └── claude-api.js
│   ├── ui/                 # User interface components
│   │   ├── simple-results-panel.js
│   │   └── status-bar.js
│   ├── utils/              # Utility functions
│   │   ├── file-filter.js
│   │   ├── cost-calculator.js
│   │   └── error-handler.js
│   └── reviewers/          # Code review logic
│       ├── security.js
│       ├── performance.js
│       └── quality.js
├── extension.js            # Main extension entry point
├── package.json            # Extension manifest
└── README.md              # This file

Building and Packaging

# Build the extension
npm run build

# Package for distribution
npm run package

# Install the packaged extension
npm run install-extension

Testing

# Run module tests
npm test

# Test extension loading
node test-extension-load.js

# Test extension status
node test-extension-status.js

🤝 Contributing

We welcome contributions! Here's how you can help:

Ways to Contribute

1. 🐛 Bug Reports: Found a bug? Open an issue!
2. 💡 Feature Requests: Have an idea? Let us know!
3. 📝 Documentation: Help improve our docs
4. 🔧 Code Contributions: Submit pull requests
5. 🧪 Testing: Help us test on different platforms

Development Workflow

1. Fork the repository
2. Create a feature branch:

   git checkout -b feature/amazing-feature

3. Make your changes
4. Test thoroughly
5. Commit your changes:

   git commit -m "Add amazing feature"

6. Push to your fork:

   git push origin feature/amazing-feature

7. Open a Pull Request

Code Style

• Use JavaScript (ES2020+)
• Follow VS Code extension conventions
• Add JSDoc comments for functions
• Include error handling
• Write descriptive commit messages

📋 Roadmap

Version 1.1.0 (Planned)

• Real AI Integration: Connect to actual AI providers (OpenAI, Claude, DeepSeek)
• Python Support: Add Python code analysis
• Java Support: Add Java code analysis
• Enhanced SQL Analysis: Better N+1 query detection
• Custom Rules: User-defined analysis rules

Version 1.2.0 (Future)

• C# Support: Add C# and .NET analysis
• C/C++ Support: Add C/C++ analysis
• Batch Processing: Review multiple files simultaneously
• Export Reports: PDF/HTML report generation
• CI/CD Integration: GitHub Actions, GitLab CI

🐛 Known Issues

• Large Files: Performance may be slow on files >100KB
• Binary Files: Not supported (by design)
• Network Issues: Requires internet for AI providers
• Memory Usage: May use significant memory on large projects

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

👨‍💻 Author

Girish Prasad Sahu

• GitHub: https://github.com/girishsahu008
• Email: girish.sahu@gmail.com
• LinkedIn: https://www.linkedin.com/in/girishprsahu/

🙏 Acknowledgments

• VS Code Team for the excellent extension API
• OpenAI, Anthropic, DeepSeek for AI capabilities
• Contributors who help improve this project
• Community for feedback and suggestions

📞 Support

• Issues: GitHub Issues
• Discussions: GitHub Discussions
• Email: your.email@example.com

⭐ Star History

---

Made with ❤️ for the developer community

If you find this extension helpful, please consider giving it a ⭐ on GitHub!