During October 2025, Anthony Mendoza focused on enhancing error handling within the temporalio/sdk-java repository, specifically targeting the RpcRetryOptions configuration. He refined exception messages to provide clearer, more actionable feedback when users supplied invalid duration or coefficient parameters, addressing a common source of developer confusion. By leveraging Java and applying robust input validation techniques, Anthony improved the clarity of error messaging, which in turn streamlined developer onboarding and reduced support overhead. His work demonstrated a strong grasp of SDK development principles and emphasized user-facing quality, resulting in more reliable production integrations and a cleaner commit history for future maintainers.