cqrs-implementationlisted

<!-- cqrs-implementation-version: 1 --> # CQRS Implementation Comprehensive guide to implementing CQRS (Command Query Responsibility Segregation) patterns. ## When to Use This Skill - Separating read and write concerns - Scaling reads independently from writes - Building event-sourced systems - Optimizing complex query scenarios - Different read/write data models needed - High-performance reporting requirements ## Core Concepts ### 1. CQRS Architecture ``` ┌─────────────┐ │ Client │ └──────┬──────┘ │ ┌────────────┴────────────┐ │ │ ▼ ▼ ┌─────────────┐ ┌─────────────┐ │ Commands │ │ Queries │ │ API │ │ API │ └──────┬──────┘ └──────┬──────┘ │ │ ▼ ▼ ┌─────────────┐ ┌─────────────┐ │ Command │ │ Query │ │ Handlers │ │ Handlers │ └──────┬──────┘ └──────┬──────┘ │ │ ▼ ▼ ┌─────────────┐ ┌─────────────┐ │ Write │─────────►│ Read │ │ Model │ Events │ Model │ └─────────────┘ └─────────────┘ ``` ### 2. Key Component