What problem does it solve? Building local notifications in an Android app involves many easy-to-get-wrong details: channel configuration, Android 13+ runtime permissions, deep links, throttling, and clinically appropriate copy. This Skill provides the conventions and Kotlin code patterns to implement notifications correctly in the Solvyx app. ## Core Features & Use Cases - NotificationChannel setup: Create separate channels per category (routines, insights, journal) with appropriate importance levels, registered once in Application.onCreate(). - Notifier helper with throttling: A Hilt-injected Notifier class that checks permissions, applies throttling, builds BigTextStyle notifications with deep links and inline actions, and respects quiet hours. - Permission handling: Request POST_NOTIFICATIONS on Android 13+ only when the user enables reminders, with a clear rationale. - Use Case: A WorkManager task finishes and needs to remind the user to log their journal entry. Use the Notifier to post a notification on the bitácora channel with a deep link to solvyx://bitacora and a "Mark as done" inline action. ## Quick Start Apply the notification-builder skill to add a local notification with a deep link and inline action to my Android Worker.