# appfunctions

> Claude/Codex skill by [@android](https://omgskills.com/library/android/index.md) · 7.6k stars · Updated 2026-09-25

Analyzes Android apps to identify key user workflows for AppFunctions such as creating a note, playing media, or sending an automated or AI agent triggered message, voice commands, or system shortcuts, without needing to open the app UI. Generates Kotlin code to expose these workflows to the Android system, allowing agents to discover and execute them on-device. Also refines KDoc documentation to ensure AI agents correctly understand and use the provided functionality.

Tags: skills

## Install

```sh
git clone https://github.com/android/skills /tmp/skills && ln -s /tmp/skills/device-ai/appfunctions ~/.claude/skills/appfunctions
```

## From README

Prerequisites The app must targetSdk 36 or newer and use compileSdk 37 or newer as AppFunctions, part of the Android platform API, are available from Android 16 onwards. Always use the Jetpack library because it handles backward compatibility. Workflows This skill enables the caller to discover features that will be provided to system agents, implement these with AppFunctions, improve function description for agents, and use ADB commands for local evaluation and testing. The full AppFunction development flow consists of these four steps: Step 1: Discovery: Analyze Android codebases to identify and recommend potential AppFunctions. Use this step when a user asks to "discover AppFunctions," "find features for AI," or "analyze my app for agentic tools." Step 2: Implementation and configuration: Generate Kotlin implementations of AppFunctions, manage system-wide configuration, and configure build dependencies.

## Links

- HTML page: https://omgskills.com/library/android/skills/appfunctions/
- GitHub: https://github.com/android/skills
- Author: [@android](https://omgskills.com/library/android/index.md)

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