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.teamai/skills/common/golang-dependency-injection/references/samber-do.md

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+# samber/do — Generics-Based DI
+
+> **For the full samber/do API, patterns, and advanced features, see the `samber/cc-skills-golang@golang-samber-do` skill.**
+
+Type-safe dependency injection using Go generics. No reflection, no code generation, simple API.
+
+- Docs: [do.samber.dev](https://do.samber.dev) | [github.com/samber/do/v2](https://github.com/samber/do)
+
+## Core Pattern
+
+```go
+// Register services with providers
+injector := do.New()
+do.Provide(injector, func(i do.Injector) (*UserService, error) {
+    db := do.MustInvoke[*Database](i)
+    return NewUserService(db), nil
+})
+
+// Invoke services (lazy — created on demand)
+svc := do.MustInvoke[*UserService](injector)
+
+// Graceful shutdown — all services implementing Shutdowner are closed
+injector.ShutdownOnSignalsWithContext(ctx, os.Interrupt)
+```
+
+## Why samber/do
+
+- **No code generation** — no build step, no generated files to maintain
+- **No reflection** — errors are caught at compile time via generics, not at runtime
+- **Strongly typed** — Go generics provide full type safety without `interface{}` casts
+- **Built-in lifecycle** — health checks and graceful shutdown detected automatically
+- **Container cloning** — create isolated test containers from production configuration
+- **Simple API** — `Provide`, `Invoke`, `Shutdown` — that's most of what you need
+- **Package system** — organize services by domain without manual wiring order
+
+→ See `samber/cc-skills-golang@golang-samber-do` for full application setup, package organization, lifecycle management, debugging, testing with clone + override, and complete API reference.