Dependency Injection - Hilt, Koin, scopes, testing
Provides Hilt and Koin DI setup, module creation, and injection for Android/Kotlin projects. Use when setting up dependency injection or fixing "No binding" errors.
/plugin marketplace add pluginagentmarketplace/custom-plugin-kotlin/plugin install kotlin-assistant@pluginagentmarketplace-kotlinThis skill inherits all available tools. When active, it can use any tool Claude has access to.
assets/config.yamlassets/schema.jsonreferences/GUIDE.mdreferences/PATTERNS.mdscripts/validate.pyDependency Injection with Hilt and Koin.
@HiltAndroidApp
class App : Application()
@Module
@InstallIn(SingletonComponent::class)
object AppModule {
@Provides @Singleton
fun provideDatabase(@ApplicationContext context: Context) =
Room.databaseBuilder(context, AppDatabase::class.java, "app.db").build()
@Provides
fun provideUserDao(db: AppDatabase) = db.userDao()
}
@HiltViewModel
class UserViewModel @Inject constructor(
private val repository: UserRepository
) : ViewModel()
val appModule = module {
single { HttpClient(getEngine()) }
single { UserRepository(get()) }
viewModel { UserViewModel(get()) }
}
// Start Koin
startKoin {
modules(appModule)
}
// Inject
val repository: UserRepository by inject()
@HiltAndroidTest
class UserViewModelTest {
@get:Rule val hiltRule = HiltAndroidRule(this)
@BindValue @JvmField
val repository: UserRepository = mockk()
@Inject lateinit var viewModel: UserViewModel
@Before fun setup() { hiltRule.inject() }
}
| Issue | Resolution |
|---|---|
| "No binding for..." | Add @Provides or @Binds |
| ViewModel not injected | Use hiltViewModel() in Compose |
Skill("kotlin-di")
This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.