attac-t Skill: Namespacing
"Support is a package. Domain is the business."
The Doctrine
App/ → Thin orchestration (controllers, commands)
Domain/ → Business logic (models, actions, DTOs)
Support/ → Package-ready utilities (NEVER imports Domain)
The Decision
Place in Support when:
- Could be extracted as a Composer package
- Has zero business entity awareness
- Works with primitives or its own Value Objects
Place in Domain when:
- References any Domain model or DTO
- Contains business rules
- Specific to this application's domain
The Heuristic
Ask: "If I copy this to another Laravel project, does it work without changes?"
- Yes → Support
- No → Domain
The Quick Test
| Ask Yourself | Answer | Use |
|---|---|---|
Uses Domain\* imports? |
Yes | Domain |
| Could be a package? | Yes | Support |
| Contains business rules? | Yes | Domain |
| Just a utility? | Yes | Support |
Real-World Examples
For concrete examples, see examples.md.