Yang Houle focused on backend stability in the coze-dev/coze-loop repository, addressing a persistent Azure API 404 error by refining the OpenAI protocol configuration. Using Go, he updated the relevant JSON field names and enabled JSON schema response formatting, ensuring more robust API integration and error handling. His work included strengthening test coverage around the OpenAI protocol and schema-based responses, which helps prevent future regressions and supports maintainable validation workflows. Although the period did not involve new feature development, Yang’s targeted bug fix and improvements to configuration and testing reflect a methodical approach to backend reliability and integration quality.