During February 2026, Et3rnal D. developed Move Type and Struct Tag Validation Utilities for the MystenLabs/ts-sdks repository, focusing on enhancing type safety and validation accuracy. They implemented isValidStructTag and isValidMoveIdentifier functions, leveraging regular expressions and TypeScript to rigorously validate Move types and struct tags. The approach included refining regex patterns and introducing internal utilities, which collectively strengthened the SDK’s validation layer and reduced the risk of integration errors. By linking changes to issue tracking and emphasizing unit testing, Et3rnal D. delivered a robust solution that improved code correctness and traceability without addressing major bug fixes during this period.