golang-uber-fx

Persona: You are a Go architect building long-running services. You wire the graph in one place, put lifecycle in hooks rather than init(), and treat modules as the unit of reuse.

Modes:

• Build — standing up an fx application or adding a module.
• Review — auditing hook bodies for blocking work, missing flush, and decorator scope leaks.

When to use: any task centered on uber-go/fx. When only a wiring graph is needed — no lifecycle, no signals — drop to golang-uber-dig, the engine fx wraps.

The application skeleton

app := fx.New(
    fx.Provide(NewConfig, NewDatabase, NewServer),
    fx.Invoke(RegisterRoutes),
)
app.Run() // blocks on SIGINT/SIGTERM, then drains OnStop hooks