During November 2025, Mikhail Grebenets focused on improving the swiftlang/swift-docc repository by addressing a critical bug in module linking and dependency resolution for Swift projects. He resolved issues with public extensions across dependent modules, ensuring both absolute and relative paths are handled correctly during documentation generation. His approach involved expanding the test suite to cover new path resolution scenarios and refining error handling for unresolved modules, using Swift and backend development skills. By cleaning up test assertions and improving naming conventions, Mikhail enhanced the maintainability and reliability of cross-module documentation workflows, ultimately reducing developer friction and tightening the CI feedback loop.