Worked on the cosmos/ibc-go repository to enhance the reliability and maintainability of its test suite by addressing issues related to for-loop variable shadowing. Focused on refactoring Go test code to remove redundant variable declarations within loops, which previously led to test flakiness and unclear scoping. This targeted change improved the determinism of test outcomes and contributed to more stable continuous integration runs. Leveraged skills in Go, refactoring, and testing to implement best practices, resulting in clearer and more maintainable test code. The work centered on bug fixing rather than feature development, emphasizing disciplined engineering and long-term code health.