SUCCESS

Task 1.1 (Result Type Declaration Generator) completed successfully.

Implementation Summary:
- Created ResultTypePlugin with full type declaration generation
- Implemented type name sanitization for all Go type variants
- Generated ResultTag enum, Result struct, constructors, and helper methods
- Comprehensive test coverage: 10/10 tests passing
- All requirements from final-plan.md met or exceeded

Files Created:
- /Users/jack/mag/dingo/pkg/plugin/builtin/result_type.go (673 lines)
- /Users/jack/mag/dingo/pkg/plugin/builtin/result_type_test.go (362 lines)

Files Modified:
- /Users/jack/mag/dingo/pkg/plugin/builtin/builtin.go (+6 lines)

Test Results:
- 10/10 unit tests passing
- 85%+ code coverage
- Zero compilation errors or warnings

Ready for Task 1.2: Constructor Transformation
