Agentic Bug Fixer

AI-powered code analysis and bug fixing system using Mistral AI.

Features

• Create bug tickets with descriptions
• AI agent analyzes code and finds bugs automatically
• Real-time progress tracking with step-by-step visibility
• Side-by-side code diff view (original vs fixed)
• One-click fix application

Tech Stack

• Frontend: React 18 + Vite + Tailwind CSS
• Backend: Python FastAPI + SQLite
• AI: Mistral AI API

Quick Start

1. Start Backend

cd agentic-bug-fixer/backend
pip install -r requirements.txt
python main.py

Backend runs at: http://localhost:8000

2. Start Frontend

cd agentic-bug-fixer/frontend
npm install
npm run dev

Frontend runs at: http://localhost:3000

3. Open Browser

Navigate to http://localhost:3000

Demo

1. Create a bug ticket:

   • Title: "Application crashes when user has no membership"
   • Description: "KeyError occurs in calculate_discount function when user.membership is not gold/silver/bronze"
   • Code folder: ./sample_code

2. Watch the agent work:

   • Status changes: NEW -> ANALYZING -> FOUND_BUG -> FIX_GENERATED -> RESOLVED
   • See each analysis step appear in real-time

3. Review the fix:

   • View original vs fixed code side by side
   • Read AI explanation of the fix

4. Apply the fix:

   • Click "Apply Fix" button

API Endpoints

Method	Endpoint	Description
GET	/	Health check
GET	/tickets	List all tickets
POST	/tickets	Create ticket
GET	/tickets/{id}	Get ticket details
DELETE	/tickets/{id}	Delete ticket
POST	/tickets/{id}/apply-fix	Apply fix
POST	/tickets/{id}/restart	Restart analysis

Agent Steps

1. Scan Files - Read code files from folder
2. Analyze Structure - Map file dependencies
3. Find Bug - AI identifies bug location
4. Root Cause - Determine why bug occurs
5. Generate Fix - Create corrected code
6. Validate - Verify fix addresses issue

Configuration

Set your Mistral API key in backend/.env:

MISTRAL_API_KEY=your-api-key-here

Project Structure

agentic-bug-fixer/
├── backend/
│   ├── main.py          # FastAPI app
│   ├── database.py      # SQLite operations
│   ├── agent.py         # AI agent logic
│   ├── models.py        # Pydantic models
│   └── requirements.txt
├── frontend/
│   ├── src/
│   │   ├── App.jsx
│   │   ├── api/api.js
│   │   └── components/
│   ├── package.json
│   └── vite.config.js
└── sample_code/         # Demo buggy code
    ├── app.py
    ├── utils.py
    └── database.py