Use when wiring Arbiter.CommandQuery with Entity Framework Core — registering AddEntityQueries / AddEntityCommands / AddQueryPipeline for an entity, defining DbContext-backed handlers, or implementing audited / soft-delete / tenant entities for EF Core.
Use when wiring Arbiter.CommandQuery with MongoDB — AddMongoRepository plus AddEntityQueries / AddEntityCommands for an IMongoEntityRepository<TEntity>. Trigger on IMongoRepository, IMongoEntityRepository, MongoDB document handlers.
Use when working with Arbiter's CQRS base layer — EntityQuery, EntityFilter, FilterOperators, SortDirections, EntityPagedQuery, EntityIdentifierQuery, EntityCreateCommand / EntityUpdateCommand / EntityPatchCommand / EntityDeleteCommand, or pipeline behaviors like validation, hybrid cache, audit, tenant, soft-delete. Trigger on AddCommandQuery, AddCommandValidation, AddEntityHybridCache.
Use when sending templated email or SMS via Arbiter.Communication — AddEmailServices / AddSmsServices, IEmailDeliveryService / ISmsDeliveryService, template resolvers, or wiring a delivery provider like Azure Communication Services, Microsoft Graph, SendGrid, Twilio, or SMTP.
Use when wiring the Blazor IDispatcher abstraction from Arbiter.Dispatcher — MessagePackDispatcher / JsonDispatcher for WebAssembly, ServerDispatcher for Server Interactive, AddDispatcherService + MapDispatcherService on the host, or component state helpers ModelStateManager / ModelStateLoader / ModelStateEditor. Trigger on Blazor Auto render mode setup.
Use when exposing Arbiter commands and queries as REST via Minimal APIs — AddEndpointRoutes, MapEndpointRoutes, EntityCommandEndpointBase, EntityQueryEndpointBase, IEndpointRoute. Trigger on Minimal API endpoint registration for CRUD entities.
Use when defining or registering Arbiter.Mapping source-generated mappers — [GenerateMapper] attribute, partial class deriving from MapperProfile<TSource, TDestination>, ConfigureMapping with MappingBuilder, IMapper / IMapper<TSrc,TDst>, ProjectTo for IQueryable, ServiceProviderMapper registration.
Use when wiring or extending Arbiter.Mediation — defining IRequest / IRequestHandler, INotification / INotificationHandler, IPipelineBehavior, or calling services.AddMediator(). Also use when the user asks about Arbiter's mediator pattern, request/response, notifications/events, or pipeline middleware.