Boundaries and modules

FullStackHero uses a combination of project layout, conventions, and architecture tests to keep module boundaries explicit.

Vertical slices

Each feature module owns:

• Its public contracts (Modules.X.Contracts).
• Its runtime behavior (Modules.X) including endpoints, handlers, and services.

Other modules talk to a module via contracts, not its internal types.

Architecture tests

The Architecture.Tests project enforces rules such as:

• Modules may not reference each other in forbidden directions.
• Building blocks cannot depend on modules or hosts.
• Namespaces mirror folder layout so it’s easy to navigate code.

These tests run as part of CI to protect your architecture from accidental drift.