SystemDeveloper 

Core leader election utilities for the Excalibur framework. Provides distributed coordination capabilities with pluggable providers (SqlServer, Redis, Consul, Kubernetes, InMemory).

Core abstractions for background job processing in the Excalibur framework.

Azure Cosmos DB data provider implementation for Excalibur cloud-native data access.

In-memory provider implementation for Excalibur data access layer testing.

ElasticSearch provider implementation for Excalibur data access layer.

Polly-based resilience patterns for the Excalibur framework (circuit breaker, retry, timeout).

Comprehensive observability for the Excalibur framework, including context flow tracking, distributed tracing, and metrics collection.

In-memory event store implementation for Excalibur.EventSourcing. Intended for testing and development scenarios.

Caching middleware and services for the Excalibur framework built on Microsoft.Extensions.Caching.

Core abstractions and interfaces for serverless hosting integration in the Excalibur framework.

Redis cache provider implementation for Excalibur data access layer.

SQL Server implementation of the transactional outbox pattern for Excalibur, providing reliable message delivery with at-least-once semantics using SQL Server as the backing store.

SQL Server implementation of the inbox pattern for Excalibur, providing idempotent message processing.

Health check UI and monitoring integration for Excalibur hosting, including readiness/liveness endpoints and health check dashboard.

SQL Server implementation of IKeyEscrowService for the Excalibur framework. Provides key escrow storage with Shamir's Secret Sharing for split-knowledge key recovery using Dapper per ADR-052.

Postgres implementations for Excalibur event sourcing, including event store, snapshot store, and outbox store.

Azure integration for the Excalibur framework. Provides Service Bus, Event Hubs, and Event Grid implementations with CloudEvents support.

SQL Server implementation of the saga pattern for Excalibur, providing durable saga state persistence with optimistic concurrency control using SQL Server as the backing store.

Postgres database provider implementation for Excalibur data access layer.

Testing utilities for Excalibur event-sourced aggregates. Provides a fluent Given-When-Then API for aggregate testing.