During August 2025, Sam Ebner-Feldman focused on codebase modernization within the google/error-prone repository, targeting the deprecation and removal of legacy Gin-related code. He unified module verification logic by migrating from Gin-specific checks to Guice-based module checks, streamlining the build process and reducing code fragmentation. Working primarily in Java, Sam applied code cleanup and deprecation handling skills to eliminate dead code paths, which improved build reliability and maintainability. Although no user-facing features were delivered, his groundwork simplified future Guice-driven cleanups and aligned the project with its deprecation strategy, enabling faster iteration and easier onboarding for future contributors.