craft-event-driven-modellisted

# Skill: Craft Event-Driven Model > "Models emit events. Subscribers handle consequences." ## The Standard 1. **Dispatch Domain Events**: `$dispatchesEvents` maps model events to domain events. 2. **Subscribers Handle Logic**: Calculations, notifications, logging—outside the model. 3. **Keep Models Thin**: Model changes state. Events trigger side effects. 4. **Test Events Separately**: Model tests don't test subscriber behavior. ## The Anti-Patterns | ❌ Don't | ✅ Do | Why | |--------------------------|-------------------------------|----------------------------| | Logic in `boot()` | Event + Subscriber | Testable, traceable | | Direct method calls | Dispatch event | Loose coupling | | Fat model observers | Focused subscribers | Single responsibility | | Skip event for "simple" | Always event for side effects | Consistency | ## Real-World Examples See [examples.md](examples.md).