AppFunctions: Making Your Android App Agent-Ready
summary
AppFunctions is a Jetpack framework that exposes typed, callable app capabilities to on-device agents by annotating functions, letting a Kotlin symbol processor generate an XML schema bundled in the APK which Android indexes and agents invoke headless via a service. Agents today call those functions only with Gemini-only early access (apply to Google), the dependency is alpha, and a notes demo shows create/list/search working via ADB. Limitations: no automatic argument validation, no rate limiting or audit log, and visibility relies on good KDoc and internal instrumentation.
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chapters (9)
- 0:00Android App Functions intro
- 2:52What are App Functions
- 5:20How App Functions work
- 8:50Limitations and early access
- 9:58Shipping an App Function
- 13:49Testing App Functions locally
- 15:35Challenges with App Functions
- 18:44Future of App Functions
- 20:31Q&A
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