Michael Coursier contributed to the LedgerHQ/ledger-live repository by improving the accuracy and traceability of end-to-end test management. He addressed a bug in the TMS swap blacklist test, updating its description to reference the correct issue number and ensuring alignment between test artifacts and the issue tracker. This targeted correction reduced ambiguity for the QA team and enhanced the reliability of test documentation. Michael applied his expertise in TypeScript and test automation to maintain clear commit hygiene and proper version control throughout the process. His work focused on refining test metadata, supporting more transparent and maintainable quality assurance workflows.