During May 2026, this developer delivered the Spotter Chat File Upload Feature for the thoughtspot/visual-embed-sdk repository, focusing on enhancing collaboration within the chat interface. The work involved implementing file upload functionality restricted to images and PDFs, with configurable options to enable or disable uploads and specify allowed file types. Using TypeScript and front end development skills, the developer integrated the feature seamlessly into the existing chat flow, prioritizing both user experience and security. Comprehensive testing ensured reliability, while clear documentation in the commit history supported future maintainability. No bugs were fixed during this period, with efforts concentrated on feature delivery.