Maintain proper package organization by following established structural patterns and separation of concerns. Code should be organized into appropriate packages based on functionality and responsibility. Key organizational principles: 1. **Module placement**: Business logic modules belong in `pkg/modules/`, not in `integrations/` or other generic folders 2. **Type definitions**: Data structures and domain types should be placed in `pkg/types/` with appropriate sub-packages (e.g., `cachetypes`, `quickfiltertypes`) 3. **Interface separation**: Follow the three-package rule - interface declarations, implementations, and mocks must be in separate packages to avoid circular dependencies 4. **Constructor patterns**: Complex object creation logic should be encapsulated in `New` functions within the types package 5. **Visibility control**: Only export types and functions that need to be used outside the package Example of proper organization: ```go // pkg/types/tracefunnel/tracefunnel.go - Type definitions type Funnel struct { ... } // pkg/modules/tracefunnel/module.go - Interface declaration type Module interface { ... } // pkg/modules/tracefunnel/impltracefunnel/module.go - Implementation type module struct { ... } // pkg/modules/tracefunnel/tracefunneltest/mocks.go - Test mocks type MockModule struct { ... } ``` This organization improves code maintainability, prevents circular dependencies, and makes the codebase more navigable for developers.