In December 2025, Ian Yimi enhanced the openai/openai-agents-js repository by improving its public API surface, focusing on developer experience and future extensibility. He exposed the ToolOptions type in the @openai/agents-core exports, allowing developers to integrate with the agents-core public API more easily and with stronger type-safety. This work, implemented in TypeScript and centered on API design principles, reinforced the repository’s type contracts and aligned with upcoming plans for ToolOptions-driven tooling. Although the contribution was limited to a single feature over one month, it addressed a key integration need and laid groundwork for more robust tool integration in the future.