Worked on enhancing transaction reliability in the bsv-blockchain/go-wallet-toolbox repository by addressing input misordering during transaction assembly. Focused on backend development using Go, the solution introduced outpoint-based input mapping within the CreateActionTransactionAssembler, ensuring that transaction inputs are correctly aligned and validated. This approach eliminated previous issues with incorrect reordering and guessing of input positions, thereby reducing edge-case failures during transaction creation. The work involved careful mapping of provided inputs to their respective outpoints, strengthening the wallet’s reliability. Throughout the project, Go and backend engineering principles were applied to improve the robustness and correctness of transaction processing workflows.