Create typed EventClient for a library. Define event maps with typed payloads, pluginId auto-prepend namespacing, emit()/on()/onAll()/onAllPluginEvents() API. Connection lifecycle (5 retries, 300ms), event queuing, enabled/disabled state, SSR fallbacks, singleton pattern. Unique pluginId requirement to avoid event collisions.
Analyze library codebase for critical architecture and debugging points, add strategic event emissions. Identify middleware boundaries, state transitions, lifecycle hooks. Consolidate events (1 not 15), debounce high-frequency updates, DRY shared payload fields, guard emit() for production. Transparent server/client event bridging.