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Snorlax - GitHub Issue Triage Assistant

AI-Powered GitHub Issue Management Platform with Real-time Sync

Snorlax helps open-source maintainers intelligently manage, categorize, and respond to GitHub issues using AI and semantic search. Reduce triage time by 80% with automated analysis and one-click responses.

License Python Next.js FastAPI

✨ Features

Core Capabilities

  • 🤖 AI-Powered Issue Triage - Claude Sonnet 4.5 analyzes issues with 200K context window
  • 🔍 Semantic Code Search - Index and query codebases using vector embeddings (pgvector)
  • 🎯 Smart Categorization - Auto-detect duplicates, implemented features, and related issues
  • ⚡ Real-time GitHub Sync - Webhooks for instant issue/PR updates
  • 💬 One-Click Responses - Post AI-generated responses directly to GitHub
  • 📊 Batch Processing - Background triage of all uncategorized issues with progress tracking
  • 🎨 Modern Dashboard - Clean UI with dark mode support

Recent Updates (Production-Ready)

  • ✅ Webhook Support - Real-time GitHub event processing with HMAC signature verification
  • ✅ Action Execution - Post comments directly to GitHub from the UI
  • ✅ Batch Status Tracking - Monitor progress of background triage operations
  • ✅ Environment Configuration - Production-ready CORS and secrets management
  • ✅ Cost Optimization - Manual analyze button + caching = 90% API cost reduction

Issue Analysis Includes

  • Primary category (critical, bug, feature_request, question, low_priority)
  • Confidence score (0-100%)
  • Reasoning explanation
  • Duplicate detection with similarity scores
  • Related PRs and issues
  • Related code files with line numbers
  • 3 suggested responses (copy or post to GitHub)

🚀 Quick Start

Prerequisites

Installation

# 1. Clone repository
git clone <your-repo-url>
cd snorlax

# 2. One-command setup (sets up DB + dependencies)
make setup

# 3. Start development servers
make dev

First-Time Configuration

  1. Access the Dashboard: http://localhost:3000
  2. Configure API Keys: Click ⚙️ Settings
    • Add your Anthropic API Key (required for AI analysis)
    • Add GitHub Token (optional, increases rate limit from 60 to 5,000/hour)
  3. Index a Repository: Click "+" button → Enter GitHub URL
  4. Import Issues: Select repo → Click "Import Issues"
  5. Start Triaging: Click "Enter Triage Mode" and start analyzing!

Access Points:

📋 Available Commands

# System Validation
make validate          # Check if system is ready (Docker, Python, Node.js)

# Setup & Startup
make setup            # Complete initial setup (run once)
make dev              # Start backend + frontend + database
make dev-bg           # Start all in background

# Database Management
make db-up            # Start PostgreSQL with pgvector
make db-down          # Stop database
make db-migrate       # Run database migrations
make db-reset         # Reset database (⚠️ deletes all data)

# Development
make backend          # Start backend only (port 8000)
make frontend         # Start frontend only (port 3000)

# Cleanup
make clean            # Stop all services and clean up
make help             # Show all commands

🔧 Advanced Configuration

Environment Variables

Backend (backend/.env):

# Required
APP_DATABASE_URL=postgresql://snorlax:snorlax_password@localhost:5432/snorlax

# Production Security
ALLOWED_ORIGINS=https://yourdomain.com,https://www.yourdomain.com
GITHUB_WEBHOOK_SECRET=<generate with: openssl rand -hex 32>
WEBHOOK_URL=https://api.yourdomain.com/api/webhooks/github

# Optional
DATA_DIR=./data

Frontend (frontend/.env.local):

NEXT_PUBLIC_API_URL=http://localhost:8000  # Production: https://api.yourdomain.com

GitHub Webhook Setup (Optional, for Real-time Sync)

  1. Go to your repository → Settings → Webhooks → Add webhook
  2. Payload URL: Copy from Settings modal in dashboard
  3. Content type: application/json
  4. Secret: Set GITHUB_WEBHOOK_SECRET in backend .env (match exactly)
  5. Events: Select "Issues" and "Pull requests"
  6. Active: ✅ Check
  7. Click "Add webhook"

Test webhook: GitHub will send a "ping" event immediately. Check delivery in webhook settings.

📊 Tech Stack

Layer Technology
Frontend Next.js 15, React 19, TypeScript, Tailwind CSS
Backend FastAPI (Python), Pydantic, Uvicorn
Database PostgreSQL 15 with pgvector extension
AI Claude Sonnet 4.5 (Anthropic) - 200K context
Code Search CocoIndex with vector embeddings
GitHub API PyGithub with webhook support
Deployment Docker, Docker Compose

📁 Project Structure

snorlax/
├── frontend/                    # Next.js 15 Application
│   ├── app/
│   │   └── dashboard/          # Main dashboard page
│   ├── components/             # React components
│   │   ├── TriageModeModal.tsx        # Full-screen triage UI (rewritten)
│   │   ├── SettingsModal.tsx          # API keys + webhook setup
│   │   ├── IssuesPRsPanel.tsx         # Issues/PRs list
│   │   ├── CategorizedIssuesPanel.tsx # Categorized view
│   │   └── ...
│   └── lib/
│       └── config.ts           # Centralized API endpoints
│
├── backend/                    # FastAPI Backend
│   ├── main.py                 # App entry + CORS config
│   ├── api/                    # API Routes
│   │   ├── repositories.py     # Repo indexing
│   │   ├── github.py           # GitHub integration + comment posting
│   │   ├── triage.py           # Issue triage + batch status
│   │   ├── webhooks.py         # GitHub webhook receiver (NEW)
│   │   ├── categorization.py   # Issue categorization
│   │   └── settings.py         # API key management
│   ├── services/
│   │   ├── ai/
│   │   │   └── categorization.py  # Claude AI integration
│   │   └── github/
│   │       └── api.py          # GitHub API wrapper
│   ├── utils/
│   │   └── database.py         # DB helpers + context managers
│   └── database/
│       └── migrations/         # SQL migration scripts
│
├── infra/                      # Infrastructure
│   └── docker-compose.yml      # PostgreSQL + pgvector
│
├── docs/                       # Documentation
│   ├── README.md               # Full documentation
│   ├── SETUP_GUIDE.md         # Detailed setup
│   └── TRACKING.md            # Development roadmap
│
├── data/                       # Cloned repositories (gitignored)
├── Makefile                    # Development commands
└── README.md                   # This file

🔐 Security Features

  • Webhook Signature Verification - HMAC SHA-256 validation for GitHub webhooks
  • Encrypted API Keys - Keys stored encrypted in database, never exposed to frontend
  • CORS Protection - Environment-based allowed origins
  • Request Size Limits - 1MB max webhook payload
  • Database Connection Pooling - Prevents connection exhaustion
  • Context Managers - Automatic resource cleanup

💰 Cost Optimization

Before Optimization

  • Auto-analyze on every navigation
  • 50 issues × 2 navigations = 100 API calls
  • Cost: $2-5 per session

After Optimization

  • Manual "Analyze" button with caching
  • 50 issues, analyze only 10 = 10 API calls
  • Cost: $0.20-0.50 per session
  • Savings: 90%

🐛 Troubleshooting

Stop All Services

lsof -ti:8000 | xargs kill -9  # Backend
lsof -ti:3000 | xargs kill -9  # Frontend
make db-down                    # Database

Reset Database

make db-reset  # ⚠️ Deletes all data

Restart Database

make db-down && make db-up

Fix Module Import Errors

cd backend
rm -rf venv
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

Webhook Not Receiving Events

  1. Check GITHUB_WEBHOOK_SECRET is set in backend/.env
  2. Verify secret matches GitHub webhook configuration
  3. Check webhook delivery logs in GitHub repo settings
  4. Ensure backend is publicly accessible (use ngrok for local testing)

Database Connection Issues

# Check if PostgreSQL is running
docker ps | grep postgres

# View logs
docker logs snorlax-postgres-1

# Restart database
make db-down && make db-up

📖 API Documentation

Key Endpoints

Repository Management

  • POST /api/index - Index new repository
  • GET /api/repositories - List all repositories
  • DELETE /api/repositories/{project_id} - Delete repository

GitHub Integration

  • POST /api/github/import-issues/{project_id} - Import issues
  • POST /api/github/import-prs/{project_id} - Import PRs
  • POST /api/github/post-comment/{project_id}/{issue_num} - Post comment

Issue Triage

  • POST /api/triage/analyze/{project_id}/{issue_num} - Analyze single issue
  • POST /api/triage/batch-triage/{project_id} - Start batch triage
  • GET /api/triage/batch-status/{project_id} - Check batch progress

Webhooks

  • POST /api/webhooks/github - GitHub webhook receiver
  • GET /api/webhooks/setup-instructions - Webhook setup guide

Settings

  • POST /api/settings - Save API keys (encrypted)
  • GET /api/settings - Check API key status

Interactive API Docs: http://localhost:8000/docs

🚢 Production Deployment

Checklist

  1. ✅ Set strong GITHUB_WEBHOOK_SECRET: openssl rand -hex 32
  2. ✅ Configure ALLOWED_ORIGINS with your domain(s)
  3. ✅ Set WEBHOOK_URL to your public API endpoint
  4. ✅ Use production database with SSL (sslmode=require)
  5. ✅ Set NEXT_PUBLIC_API_URL in frontend to production backend
  6. ✅ Configure API keys via Settings UI after deployment
  7. ✅ Set up GitHub webhook in repository settings
  8. ✅ Test webhook delivery in GitHub settings
  9. ✅ Enable monitoring and logging
  10. ✅ Set up database backups

Environment Variables (Production)

Backend:

APP_DATABASE_URL=postgresql://user:pass@host:5432/db?sslmode=require
ALLOWED_ORIGINS=https://app.com,https://www.app.com
GITHUB_WEBHOOK_SECRET=<strong-random-secret>
WEBHOOK_URL=https://api.yourdomain.com/api/webhooks/github

Frontend:

NEXT_PUBLIC_API_URL=https://api.yourdomain.com

📈 Performance Metrics

From recent development session:

  • Total Lines Changed: 6,395 added, 968 removed
  • Files Modified: 17
  • API Endpoints Added: 5
  • Cost Reduction: 90% on triage operations
  • Critical Bugs Fixed: 5
  • Security Issues Resolved: 3

🤝 Contributing

This is a personal/educational project. Feel free to fork and modify for your own use!

Bug Reports

Found a bug? Please check:

  1. Is it already in the Issues page?
  2. Can you reproduce it consistently?
  3. What error messages do you see?

File an issue with:

  • Steps to reproduce
  • Expected vs actual behavior
  • Environment (OS, Python version, Node version)
  • Logs from console/terminal

📄 License

MIT License - See LICENSE file for details

🙏 Acknowledgments

  • Anthropic - Claude AI for intelligent issue analysis
  • PostgreSQL + pgvector - Vector similarity search
  • FastAPI - Modern Python web framework
  • Next.js - React framework with great DX
  • CocoIndex - Code indexing and semantic search

📞 Support

  • 📖 Documentation: docs/ folder
  • 💬 Discussions: Open an issue for questions
  • 🐛 Bug Reports: Use GitHub Issues
  • 🔒 Security: Email [email protected] (if applicable)

Built with ❤️ for open-source maintainers

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