During March 2026, Mutaliyev focused on enhancing the debugging workflow for the swiftlang/vscode-swift repository. He addressed stability issues in the Swift Testing Debug flow by simplifying argument handling in debug mode, replacing per-test expansion with target-level wildcards to prevent crashes caused by OS argument limits. This approach enabled reliable debugging for large Swift projects, such as swift-package-manager, by reducing adapter failures and minimizing workflow interruptions. Working primarily with TypeScript, Mutaliyev demonstrated strong debugging and testing skills, ensuring that exact argument expansion was retained for xctest invocations to preserve correctness while improving overall robustness for large codebases.