In November 2025, Sandra Wang enhanced wallet transaction testing in the BitGo/BitGoJS repository by introducing an isTestTransaction parameter to wallet transactions. She implemented this feature using TypeScript, focusing on robust API development and full stack integration. Sandra’s approach included comprehensive automated tests that validated the new parameter across multiple transaction flows, specifically targeting TSS and multisig wallets. This work improved the quality assurance process by enabling safer, more reliable testing without impacting production data. The depth of her implementation ensured that the feature was thoroughly validated, reducing risk and supporting ongoing development of secure wallet transaction functionality.