12 KiB
YouTube Summarizer - Epic Index
Epic Overview
This index provides navigation and status tracking for all epics in the YouTube Summarizer project. Each epic represents a major milestone in the product development journey from basic functionality to advanced features.
Project Vision
Create a self-hosted, hobby-scale YouTube Summarizer that transforms long-form video content into concise, actionable summaries using AI technology. Prioritize background processing, cost efficiency, and professional code quality while maintaining simplicity for hobby deployment.
Epic Status Dashboard
| Epic | Status | Progress | Stories Complete | Next Action |
|---|---|---|---|---|
| Epic 1 | ✅ COMPLETE | 100% (5/5) | All Stories 1.1-1.5 ✅ Complete | Epic fully implemented |
| Epic 2 | ✅ COMPLETE | 100% (5/5) | All Stories 2.1-2.5 ✅ Complete | Epic fully implemented |
| Epic 3 | ✅ COMPLETE | 100% (5/5) | All Stories 3.1-3.5 ✅ Complete | Epic fully implemented |
| Epic 4 | 🚧 IMPLEMENTATION READY | 37% (2/5) | Stories 4.1-4.2 ✅ | Ready for Story 4.3 Development |
Overall Project Progress: 85% (17/20 stories completed across 4 epics)
Epic 1: Foundation & Core YouTube Integration
🎯 Goal: Establish foundational infrastructure and core YouTube integration
📁 Epic File: epic-1-foundation-core-youtube-integration.md
🔗 Dependencies: None (foundational epic)
📊 Status: 🟢 Ready for Development - All stories created and ready for implementation
Stories in Epic 1
| Story | Title | Status | File | Dependencies |
|---|---|---|---|---|
| 1.1 | Project Setup and Infrastructure | ✅ COMPLETED | 1.1.project-setup-infrastructure.md |
None |
| 1.2 | YouTube URL Validation and Parsing | ✅ COMPLETED | 1.2.youtube-url-validation-parsing.md |
Story 1.1 |
| 1.3 | Transcript Extraction Service | ✅ COMPLETED | 1.3.transcript-extraction-service.md |
Story 1.2 |
| 1.4 | Basic Web Interface | ✅ COMPLETED | 1.4.basic-web-interface.md |
Story 1.3 |
| 1.5 | Video Download and Storage Service | ✅ COMPLETED | 1.5.video-download-storage-service.md |
Stories 1.1, 1.2 |
Key Deliverables
- ✅ Complete development environment with Docker
- ✅ YouTube URL processing and validation
- ✅ Transcript extraction with fallbacks
- ✅ Basic responsive web interface
- ✅ Video download and local storage service
Architecture Components
- Backend: FastAPI + Python 3.11+ with async support
- Frontend: React 18 + TypeScript + shadcn/ui
- Database: SQLite for development
- Deployment: Docker Compose self-hosted
Epic 2: AI Summarization Engine
🎯 Goal: Implement AI-powered summarization with multi-model support and caching
📁 Epic File: epic-2-ai-summarization-engine.md
🔗 Dependencies: Epic 1 (Foundation & Core YouTube Integration)
📊 Status: ✅ COMPLETE - All stories implemented
Stories in Epic 2
| Story | Title | Status | File | Dependencies |
|---|---|---|---|---|
| 2.1 | Single AI Model Integration | ✅ COMPLETED | 2.1.single-ai-model-integration.md |
Story 1.4 |
| 2.2 | Summary Generation Pipeline | ✅ COMPLETED | 2.2.summary-generation-pipeline.md |
Story 2.1 |
| 2.3 | Caching System Implementation | ✅ COMPLETED | 2.3.caching-system-implementation.md |
Story 2.2 |
| 2.4 | Multi-Model Support | ✅ COMPLETED | 2.4.multi-model-support.md |
Story 2.3 |
| 2.5 | Export Functionality | ✅ COMPLETED | 2.5.export-functionality.md |
Story 2.4 |
Key Deliverables
- AI integration with OpenAI GPT-4o-mini
- Multi-model support (OpenAI, Anthropic, DeepSeek)
- Intelligent caching system (24-hour TTL)
- Export functionality (Markdown, PDF, plain text)
- Cost optimization (~$0.001-0.005 per summary)
Architecture Components
- AI Service: Provider abstraction with fallback
- Cache Service: Memory + database caching
- Export Service: Multiple format generation
- Cost Tracking: Usage monitoring and optimization
Epic 3: Enhanced User Experience
🎯 Goal: Transform into comprehensive platform with authentication, batch processing, and real-time updates
📁 Epic File: epic-3-enhanced-user-experience.md
🔗 Dependencies: Epic 2 (AI Summarization Engine)
📊 Status: ✅ COMPLETE - All core stories implemented (Story 3.6 deferred to Epic 4)
Stories in Epic 3
| Story | Title | Status | File | Dependencies |
|---|---|---|---|---|
| 3.1 | User Authentication System (Backend) | ✅ COMPLETED | Backend auth implementation | Story 2.5 |
| 3.2 | Frontend Authentication Integration | ✅ COMPLETED | Frontend auth components | Story 3.1 |
| 3.3 | Summary History Management | ✅ COMPLETED | 3.3.summary-history-management.md |
Story 3.1-3.2 |
| 3.4 | Batch Processing | ✅ COMPLETED | 3.4.batch-processing.md |
Story 3.3 |
| 3.5 | Real-time Updates | ✅ COMPLETED | 3.5.real-time-updates.md |
Story 3.4 |
| 3.6 | API Endpoints | ⏸️ DEFERRED | Moved to Epic 4 | - |
Key Deliverables
- ✅ User registration and authentication (JWT-based)
- ✅ Persistent summary history with search and filtering
- ✅ Batch processing for up to 100 videos
- ✅ Real-time WebSocket progress updates with recovery
- ✅ Job cancellation and time estimation
- ⏸️ Public API with SDK support (deferred to Epic 4)
Architecture Components
- Auth Service: JWT authentication with refresh tokens
- User Management: Profiles and preferences
- Batch Processing: Background job queue system
- WebSocket Service: Real-time progress updates
- API Gateway: Rate limiting and key management
Epic 4: Advanced Intelligence & Developer Platform
🎯 Goal: Multi-agent AI system with enhanced exports and RAG-powered video chat
📁 Epic File: epic-4-advanced-intelligence-developer-platform.md
🔗 Dependencies: Epic 3 (Enhanced User Experience) ✅ Complete
📊 Status: 🚧 IMPLEMENTATION READY - Core services implemented, ready for API integration
Stories in Epic 4
| Story | Title | Status | Priority | Dependencies |
|---|---|---|---|---|
| 4.1 | Dual Transcript Options (YouTube + Whisper) | ✅ COMPLETED | High | Epic 3 Complete ✅ |
| 4.2 | API Endpoints & Developer SDK | ✅ COMPLETED | High | Story 4.1 ✅ |
| 4.3 | Multi-video Analysis with Multi-Agent System | 📋 READY | High | Story 4.2 ✅ |
| 4.4 | Custom Models & Enhanced Markdown Export | 📋 READY | High | Story 4.2 ✅ |
| 4.6 | RAG-Powered Video Chat with ChromaDB | 📋 READY | Medium | Story 4.4 |
Completed Features ✅
- Stories 4.1-4.2: Dual transcript system and comprehensive API platform
- Multi-Agent Service: Technical, Business, UX perspective agents + synthesis
- Enhanced Export Service: Executive summaries with timestamped navigation
- RAG Chat Service: ChromaDB semantic search with conversation management
- DeepSeek Integration: Cost-effective AI processing with async patterns
- Database Schema: 12 new tables supporting all Epic 4 advanced features
Key Deliverables (Enhanced Scope)
- Multi-Agent Analysis: Three perspective agents analyzing videos with different AI prompts
- Enhanced Markdown Export: Executive summaries, timestamped sections
[HH:MM:SS], table of contents - RAG Video Chat: Interactive Q&A using ChromaDB vector search with timestamp references
- Advanced Services: Production-ready backend services for all features
- Database Migration: Complete schema extensions for multi-agent and chat features
Development Workflow
Current Status: Epic 3 Complete! 🎉
Completed Epics:
- ✅ Epic 1 - Foundation & Core YouTube Integration
- ✅ Epic 2 - AI Summarization Engine
- ✅ Epic 3 - Enhanced User Experience
Next Steps for Epic 4:
- Story 4.1 (Dual Transcript Options) - YouTube vs Whisper transcription choice
- Story 4.2 (API Endpoints & SDK) - Developer platform and external integrations
- Story 4.3 (Multi-video Analysis) - Playlist and channel summarization
- Story 4.4 (Custom AI Models) - Fine-tuning and custom prompt templates
- Story 4.5 (Advanced Analytics) - Usage insights and performance dashboards
- Story 4.6 (Interactive Q&A) - Chat interface with summaries
- Story 4.7 (Trend Detection) - Cross-video content analysis and insights
Project Status: 100% of Core Features Complete - Ready for production use!
Story Creation Process
- Select Next Story: Use epic dependency chain
- Create Story File: Follow BMad Method template
- Add Technical Context: Reference architecture document
- Validate Story: Run story-draft-checklist
- Update Epic Status: Track completion progress
Commands for Story Management
# Create next story
/BMad:agents:sm
*draft
# Validate story quality
/BMad:agents:sm
*story-checklist
# Execute story implementation
/BMad:agents:dev
# (implement story based on detailed specifications)
Architecture Integration
Key Architecture Documents
- Main Architecture:
../architecture.md- Complete technical specification - Frontend Spec:
../front-end-spec.md- UI/UX requirements - Original PRD:
../prd.md- Complete product requirements
Technology Stack Overview
| Layer | Epic 1 | Epic 2 | Epic 3 |
|---|---|---|---|
| Frontend | React + TypeScript | AI Integration UI | Auth + Advanced UI |
| Backend | FastAPI + SQLite | AI Services | User Management |
| External | YouTube APIs | AI APIs | Email + Webhooks |
| Infrastructure | Docker Compose | Caching Layer | Background Jobs |
Quality Assurance
Definition of Done (Epic Level)
- All stories completed and validated
- Integration testing passing
- Documentation updated
- Performance targets met
- Security requirements satisfied
Testing Strategy by Epic
- Epic 1: Infrastructure and integration testing
- Epic 2: AI service testing and cost validation
- Epic 3: User flows and API testing
Project Metrics
Cost Optimization Targets
- Development: Self-hosted Docker deployment
- AI Processing: ~$0.10/month for hobby usage
- Storage: Local SQLite (upgradeable to PostgreSQL)
Performance Targets
- Epic 1: Development setup < 5 minutes
- Epic 2: Summary generation < 30 seconds
- Epic 3: Real-time updates < 1 second latency
Quality Standards
- Code Coverage: > 80% backend, > 70% frontend
- Type Safety: 100% TypeScript coverage
- Documentation: Complete setup and API documentation
Epic Index Last Updated: 2025-08-27
Project Owner: Bob (Scrum Master)
Architecture Reference: Winston (Architect)
Development Status: Epic 3 Complete! All core features implemented. Ready for production deployment or Epic 4 development.