During June 2025, contributed to both the cloudflare/agents and openai/openai-agents-js repositories with a focus on user experience, reliability, and maintainability. Developed a fallback message feature for the AI chat agent in cloudflare/agents, enabling graceful handling of empty responses and improving observability. In openai/openai-agents-js, centralized schema versioning by exporting a constant for CURRENT_SCHEMA_VERSION and updating serialization logic, which streamlined maintainability and consistency. Also ensured handoff message JSON validity by adding a dedicated test, enhancing data integrity and cross-component compatibility. Work was primarily completed using TypeScript, leveraging skills in AI development, backend development, and full stack engineering.