Worked on reorganizing GPT-5 model configuration within the openai/openai-agents-js repository, focusing on improving clarity, maintainability, and scalability for multi-provider environments. The approach involved refactoring model settings to reside under a centralized providerData structure, which standardizes configuration paths and reduces the risk of drift or misconfiguration. This change supports easier onboarding and safer rollout of GPT-5 capabilities by clarifying configuration boundaries and ownership. The work was implemented using JavaScript and full stack development skills, with an emphasis on AI integration. No bugs were reported during this period, reflecting careful attention to stability and future maintainability.