During October 2025, Frank Sladkey focused on stabilizing Kotlin Symbol Processing within the google/ksp repository by addressing build failures related to invalid analysis session states. He replaced the existing KaFirStopWorldCacheCleaner with a NoOpCacheCleaner, introducing and registering this new class within KotlinSymbolProcessing. This technical approach, leveraging his skills in Kotlin, build system integration, and compiler plugins, reduced flaky builds and improved developer productivity by preventing CI failures tied to KSP analysis sessions. Although the work centered on a single bug fix rather than new features, it demonstrated a targeted and effective solution to a complex build stability issue.