In March 2026, Lanclos focused on backend development in the google/adk-java repository, addressing a bug that caused truncation of fractional seconds in session timestamps. By extracting event timestamps as doubles, Lanclos ensured accurate preservation of nanosecond precision when converting between millis-based event data and Instant-based session records. This approach improved the reliability of last_modified times and event sequencing, directly benefiting session analytics and downstream data processing. The solution included comprehensive unit testing, with a regression test added to safeguard against future issues. Lanclos applied expertise in Java and unit testing to deliver a targeted, low-risk fix with clear traceability.