Keshari developed a TypeScript webhook server for the microsoft/Agents-M365Copilot repository, enabling Microsoft 365 Copilot AI to receive and process interaction change notifications via the Microsoft Graph API. Using Node.js and Express, Keshari implemented end-to-end subscription management, encrypted payload handling, and detailed interaction logging, establishing a robust integration pattern for Copilot-related webhooks. The solution addressed the need for secure, scalable notification workflows within Copilot AI, providing a reusable foundation for future integrations. Although the work focused on a single feature over one month, it demonstrated depth in full stack development and readiness for complex Microsoft Graph-based automation scenarios.