Section Overview
Dependency Injection
Single-path DI with explicit lifecycles, deterministic contracts, and stable boot behavior for long-running workers.
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Route Map
Each feature page pairs live output with the source that produced it.
Container Basics
5Dependency Injection
DI Canon
One canonical DI path for container-managed classes: protected property attributes, no constructor arguments, validated at boot and enforced by lint:di.
Dependency Injection
Readonly Injection
The default tier: one instance per worker, injected into a protected property, with optional injection for dependencies that may not be installed.
Dependency Injection
Mutable Injection
#[ExecutionScoped] opts a class into a per-execution clone; #[InjectAsMutable] marks the properties re-injected on that clone.
Dependency Injection
Factory Injection
#[InjectAsFactory] injects a factory that picks a contract implementation by backed-enum key. Execution-scoped implementations come back fresh each time.
Dependency Injection
Service Contracts
One module declares an interface, implementations advertise themselves with SatisfiesServiceContract, and the active one is visible in contracts:list.