Developed and integrated an Instant Messaging API plugin for the MCDReforged/PluginCatalogue repository, focusing on expanding the platform’s extensibility for future IM-related features. The work involved creating a new Java-based plugin, ‘im_api’, using plugin development best practices to ensure a minimal and low-risk implementation. By keeping the integration straightforward and limiting the code footprint, the developer reduced maintenance overhead while enhancing the catalogue’s readiness for additional messaging capabilities. Documentation and traceability were maintained through detailed commit messages, supporting auditability. No bug fixes were required during this period, reflecting a focused and contained engineering effort on new feature delivery.