MCP YNAB Server

# MCP-YNAB Project To-Do List ## Code Organization - [ ] Split server.py into smaller modules (client, resources, utils, tools) - [ ] Create proper package structure with submodules - [ ] Extract formatting utilities to a dedicated module - [ ] Move YNAB client code to a dedicated client module - [ ] Separate persistence logic from business logic ## Performance Improvements - [ ] Implement proper caching with TTL for budget and category data - [ ] Add pagination support for transaction queries - [ ] Optimize category lookup by implementing indexed search - [ ] Implement batch operations for transaction updates - [ ] Reduce redundant API calls in tool implementations ## Error Handling & Robustness - [ ] Implement consistent error handling pattern across all API calls - [ ] Add input validation for all tool parameters - [ ] Implement retry logic for API failures - [ ] Add proper error reporting and logging infrastructure - [ ] Handle rate limiting for YNAB API ## Testing - [ ] Implement unit tests for all helper functions - [ ] Add integration tests with API simulation - [ ] Test edge cases and error conditions - [ ] Add test coverage for resource endpoints - [ ] Improve test fixtures and mocking patterns ## Documentation - [ ] Add docstrings to all public functions and classes - [ ] Create API documentation for resources and tools - [ ] Document data models and field definitions - [ ] Add usage examples for common operations - [ ] Document environment setup and configuration options ## Feature Enhancements - [ ] Add support for multiple budget switching - [ ] Implement transaction search functionality - [ ] Add budget adjustment capabilities - [ ] Implement transaction approval workflow - [ ] Add reporting and visualization features ## Development Experience - [ ] Add development environment setup documentation - [ ] Implement pre-commit hooks for code quality checks - [ ] Set up CI/CD workflow for automated testing - [ ] Create a development quick start guide - [ ] Improve debugging support