Worked on the arrow-kt/arrow repository to enhance the reliability of optics code generation using Kotlin and Kotlin Symbol Processing (KSP). Focused on stabilizing the pipeline by deferring the generation of optics for invalid classes to subsequent KSP rounds, which prevented pipeline breaks and reduced the risk of cascading failures. The approach involved partitioning annotated symbols by their validation status during the optics generation process, ensuring that only valid symbols were processed immediately while others were safely deferred. This change improved end-to-end processing reliability and was implemented and validated through a targeted bug fix, demonstrating depth in compiler plugin development.