Developed and delivered the Card Status Webhook Topics feature for the immersve-docs repository, expanding webhook support to include card creation, activation, cancellation, and blocking events. This work involved designing and implementing new webhook topics using YAML, with a focus on clear API development and robust documentation. Comprehensive definitions and payload structures were added to the API reference, streamlining integration for other developers. The approach ensured that code changes and documentation updates were closely coordinated, improving the onboarding process and clarifying webhook event usage. The project emphasized maintainable documentation practices and enhanced the overall developer experience with webhooks and API endpoints.