# Implementation Plan
## Phase 1: Basic Functionality ✓
- [x] Project structure setup
- [x] Basic configuration handling
- [ ] Basic search functionality
- [ ] Abstract retrieval
- [ ] Initial error handling
## Phase 2: Enhanced Features
- [ ] Full text retrieval integration
- [ ] Implement caching to avoid redundant API calls
- [ ] Advanced error handling and rate limiting
- [ ] Progress reporting for long operations
- [ ] Resource cleanup and connection handling
## Phase 3: Advanced Features
- [ ] Advanced search features (date ranges, filters)
- [ ] Resource templates for direct article access
- [ ] Bulk operations support using Entrez history
- [ ] Metadata enrichment
- [ ] Citation parsing and linking
## Phase 4: Optimizations
- [ ] Response caching improvements
- [ ] Rate limit optimizations
- [ ] Connection pooling
- [ ] Error recovery strategies
- [ ] Performance monitoring
## Future Considerations
- [ ] Support for additional PubMed APIs
- [ ] Integration with other citation databases
- [ ] Extended metadata support
- [ ] Citation network analysis
- [ ] Automated paper recommendations