During October 2025, contributed to the zed-industries/gemini-cli repository by developing the Extension Command Execution API, introducing a new /executeCommand endpoint that enables execution of extension-related commands and listing available extensions. The work involved designing a command registry and execution pipeline, implementing robust logic in Node.js and TypeScript, and ensuring reliability through comprehensive testing. This feature allows extension authors to integrate command capabilities, streamlining extension management and supporting automation. The approach emphasized maintainable code quality and end-to-end validation, laying a foundation for richer extension integrations and improved scalability within the product’s ecosystem, while demonstrating full stack and API development skills.