Worked on the openclaw/openclaw repository, focusing on backend development and API integration using TypeScript and JavaScript. Addressed a critical issue in the MSTeams extension by correcting the typing indicator signaling, ensuring that sendActivity now passes an array as required by the Microsoft Teams API signature. This targeted bug fix improved the accuracy of typing status communication in chat conversations, reducing user confusion and aligning with platform expectations. The solution was implemented as a disciplined, low-risk commit, maintaining repository stability while enhancing collaboration experiences for Teams users. Demonstrated careful code ownership and a strong understanding of API-driven backend workflows.