During October 2025, Redtom focused on backend development for the JetBrains/koog repository, addressing stability and data integrity within the LLMAsAJudge workflow. He identified and resolved a critical bug in system message tagging, ensuring that messages were correctly categorized in the conversation history. This fix, implemented in Kotlin, prevented misclassification issues and improved the reliability of analytics derived from conversation data. Redtom’s work centered on code quality and maintainability rather than feature delivery, emphasizing robust messaging pipelines. By refining the tagging logic and handling edge cases, he contributed to a more stable and analytics-ready backend system for the project.