During September 2025, Ink Pan focused on strengthening the OpenAI integration within the coze-dev/coze-loop repository. They addressed a critical bug in the model module by ensuring the response format is only applied when the ResponseFormatType is explicitly provided, which prevents errors from empty fields and improves production reliability. Their approach emphasized defensive coding and robust input validation, reducing the risk of runtime failures and exception spillover. Working primarily with Go and leveraging backend development and API integration skills, Ink Pan also enhanced test coverage for error scenarios, contributing to a more stable loop execution pipeline and supporting better customer outcomes.