Worked on the golang/go repository to enhance the Go build system by adding test dependency metadata to build information. This feature ensures that test binaries now include complete context about the versions of dependencies used during testing, which improves the reliability and debuggability of test execution. The implementation involved backend development in Go, with careful integration to maintain deterministic builds and facilitate easier troubleshooting across environments. The work underwent thorough code review and continuous integration validation with core maintainers, demonstrating attention to quality and collaboration. This contribution addressed a longstanding issue with test dependency awareness in Go’s build process.