Worked on stabilizing the API surface within the lit/lit repository, focusing on integration readiness and future feature enablement. The primary contribution involved exporting the SignalWatcherApi interface to support the SignalWatcher mixin, which improved type safety and interoperability across the codebase. This TypeScript-driven enhancement reduced coupling between modules and facilitated broader reuse of SignalWatcher functionality in front end development. No customer-reported bugs were addressed during this period, as the work centered on architectural improvements and aligning changes with ongoing pull requests. These efforts positioned the project for accelerated downstream adoption and more efficient delivery of upcoming features and integrations.