Worked on enhancing VM snapshot analysis tooling in the dart-lang/sdk repository, focusing on improving diagnostic accuracy and code structure reporting. Delivered static field offset support by introducing static_field_offset to Field objects and extending test coverage to validate offset calculations, ensuring precise representation of static fields in VM snapshots. Later, implemented owner-class tracing by adding an owner_class field to both Function and Field objects, enabling traceability of ownership back to their respective classes. These changes, developed using C++ and Dart, strengthened snapshot analysis reliability and observability, with a technical emphasis on code instrumentation, testing, and virtual machine development throughout the engagement.