kora-di-runtimelisted

# Kora DI Runtime — Runtime Injection Behavior > **Kora sub-skill — obey the [kora-v1 meta rules](../../SKILL.md) on every task:** **R0** ensure `.kora-agent/` docs+examples are cloned · **R1** read this sub-skill before writing code · **R2** Kora APIs only — no Spring/Micronaut/Quarkus, no invented annotations or config keys · **R3** journal any incorrect Kora usage. Add comments/Javadoc only if asked. **Kora Version:** 1.x **Focus:** Runtime DI — lifecycle, tags, collections, lazy dependencies, interception. **Read this first when:** - Marking components as `@Root` for automatic startup - Implementing `Lifecycle` for init/release logic - Disambiguating with `@Tag`, collecting with `All<T>` - Using `ValueOf<T>` for lazy dependencies - Wrapping components with `GraphInterceptor` **References:** See `references/` for detailed guides on each topic. --- ## Quick Start ### @Root — Self-Starting Components Only components that are dependencies of other components, or marked `@Root` (`ru.tinkoff.kora.common.annotation.Root`), are instantiated at runtime. `@Root` goes on a `@Component` class or on a `@KoraApp`/`@Module` factory method. **When to use @Root:** HTTP/gRPC servers, Kafka consumers, cache warmers, schedulers, startup tasks — anything that must run even though nothing depends on it. A self-starting worker: ```java import ru.tinkoff.kora.application.graph.Lifecycle; import ru.tinkoff.kora.common.Component; import ru.tinkoff.kora.common.annotation.Root; @Root @C