Worked on the bufbuild/buf repository to address a critical issue in the dependency graph output, focusing on ensuring that all dependencies were accurately represented in the generated JSON. Utilized Go for backend development to fix a bug where previously seen dependencies were silently omitted, which could lead to incomplete or misleading outputs for downstream tooling. Introduced a regression test to lock in the correctness of the --format json dependency graph, improving build reliability and developer confidence. The work emphasized robust backend practices and careful regression testing, contributing to more predictable and trustworthy dependency management within the Go-based bufbuild/buf project.