cqrs-pattern

What problem does it solve?

This Skill documents the CQRS (Command Query Responsibility Segregation) pattern used in Electron applications with RxJS and neverthrow.

Core Features & Use Cases

• Reactive Queries: Use Observable<T> for read operations to push updates.
• Safe Commands: Use ResultAsync<void, Error> for writes with explicit error handling.
• Bridge Pattern: BehaviorSubject as a bridge between queries and commands for automatic updates.
• Usage: Define a service interface and implement queries and commands following the CQRS guidelines.

Quick Start

Define a CQRS service interface with queries returning Observable<T> and commands returning ResultAsync<void, ApplicationError>, then wire it into Hono routes and a renderer client.