cqrs

Implements CQRS patterns by separating write and read models with event-driven synchronization and projections.

20|3|Updated Apr 30, 2026
One-click install
npx skills add https://github.com/DVNghiem/FlowDeck --skill cqrs-dvnghiem
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cqrs
Source: https://github.com/DVNghiem/FlowDeck/tree/main/src/skills/cqrs
Command: npx skills add https://github.com/DVNghiem/FlowDeck --skill cqrs-dvnghiem

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Designing robust systems where read and write workloads and representations differ, requiring separate models and processing paths to scale effectively.

Core Features & Use Cases

  • Separate Command and Query Models to isolate write and read concerns
  • Design Command Side with intent-based commands, validation, and transactional boundaries
  • Design Query Side with read-optimized projections, pagination, and caching strategies
  • Implement Synchronization by projecting domain events into the read model
  • Handle Eventual Consistency with clear expectations and guardrails for data freshness

Quick Start

Split write and read paths, then implement a basic projection from write events to the read model.

Frequently Asked Questions about cqrs

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I separate read and write models in a scalable system?▼

To separate read and write models, implement Command Query Responsibility Segregation to split transactional writes from read-optimized projections, allowing independent scaling and synchronization through domain events.

When do I need to use CQRS patterns in domain-driven design?▼

You need CQRS patterns when read and write workloads differ significantly in volume or representation, requiring separate processing paths to scale effectively without constraining queries by transactional boundaries.

How do I synchronize a read model with eventual consistency?▼

Synchronize a read model by projecting domain events from the command side into the read-optimized projection, establishing clear guardrails and expectations for data freshness during eventual consistency.

What is the best way to design commands for the write side of a CQRS architecture?▼

Design the write side of a CQRS architecture using intent-based commands with strict validation and transactional boundaries to ensure domain integrity before emitting events for read-model synchronization.

Can I use read-optimized projections with pagination for high-traffic query workloads?▼

Yes, you can use read-optimized projections with pagination and caching strategies to handle high-traffic query workloads efficiently, isolating reads from the command-side transactional boundaries.

Why does splitting reads and writes require event-driven synchronization?▼

Splitting reads and writes requires event-driven synchronization because separate models must stay aligned; projecting domain events into the read model reliably updates query data despite eventual consistency.