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

Open this folder in VS Code
Press F5 → launches Extension Development Host
In the new window, open any code file
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

onDidSaveTextDocument — listens for file saves
Sends { language, code } to POST http://localhost:5000/analyze
If error found → highlights the line in red + shows hover message + toast notification
User clicks "🔧 Fix This" → sends to POST http://localhost:5000/fix
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

Enjoy!

AutoFixer