AutoFix — VS Code Extension

AI-powered error detection and one-click fix for Visual Studio Code. Analyzes your code on every save using GPT-5-nano and highlights errors directly in the editor.

Features

Error Detection on Save

Save any file → AutoFix sends the code to the backend → errors are highlighted in red.

One-Click Fix

When an error is detected, click "🔧 Fix This" in the notification → the LLM generates and applies the corrected code automatically.

Multi-Language Support

Works with any language supported by VS Code — Python, JavaScript, TypeScript, Java, C++, Go, and more.

Requirements

• AutoFix Backend must be running on http://localhost:5000
• Node.js 18+
• VS Code 1.96+

Setup

cd AutoFix-extension
npm install

Run in Development

1. Open this folder in VS Code
2. Press F5 → launches Extension Development Host
3. In the new window, open any code file
4. Save (Ctrl+S) → errors will be highlighted

Backend (required)

cd ../AutoFix-backend
python -m venv venv
venv\Scripts\activate
pip install -r requirements.txt
uvicorn app.main:app --port 5000 --reload

How It Works

1. onDidSaveTextDocument — listens for file saves
2. Sends { language, code } to POST http://localhost:5000/analyze
3. If error found → highlights the line in red + shows hover message + toast notification
4. User clicks "🔧 Fix This" → sends to POST http://localhost:5000/fix
5. Receives corrected code → replaces file content → auto-saves → re-analyzes

Extension Settings

Currently no configurable settings. Future versions will add:

• Configurable backend URL
• Toggle auto-fix on save
• Error severity filtering

Known Limitations

• Detects one error at a time (most critical first)
• Requires backend server running locally
• LLM response time depends on network and Azure AI Foundry latency

Working with Markdown

You can author your README using Visual Studio Code. Here are some useful editor keyboard shortcuts:

• Split the editor (Cmd+\ on macOS or Ctrl+\ on Windows and Linux)
• Toggle preview (Shift+Cmd+V on macOS or Shift+Ctrl+V on Windows and Linux)
• Press Ctrl+Space (Windows, Linux, macOS) to see a list of Markdown snippets

For more information

• Visual Studio Code's Markdown Support
• Markdown Syntax Reference

Enjoy!