During January 2026, Eagle Ok focused on enhancing trace context serialization in the getsentry/sentry-cocoa repository. He addressed a critical bug by correcting the assignment of the 'sampled' key within SentryTraceContext, ensuring that trace data is serialized accurately for downstream processing. To validate this fix, he expanded unit test coverage, verifying that all relevant fields are properly included or omitted based on input data. Working primarily with Objective-C and Swift, Eagle Ok improved the robustness of Cocoa tracing by reducing potential debugging issues in production. His work demonstrated careful attention to detail and a methodical approach to quality assurance.