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CQRS Implementation

cqrs-implementation

Implement Command Query Responsibility Segregation for scalable architectures. Use when separating read and write models, optimizing query performance, or building event-sourced systems.

SKILL.md

Full skill instructions

CQRS Implementation

Comprehensive guide to implementing CQRS (Command Query Responsibility Segregation) patterns.

Use this skill when

  • Separating read and write concerns
  • Scaling reads independently from writes
  • Building event-sourced systems
  • Optimizing complex query scenarios
  • Different read/​write data models are needed
  • High-performance reporting is required

Do not use this skill when

  • The domain is simple and CRUD is sufficient
  • You cannot operate separate read/​write models
  • Strong immediate consistency is required everywhere

Instructions

  • Identify read/​write workloads and consistency needs.
  • Define command and query models with clear boundaries.
  • Implement read model projections and synchronization.
  • Validate performance, recovery, and failure modes.
  • If detailed patterns are required, open resources/​implementation-playbook.md.

Resources

  • resources/​implementation-playbook.md for detailed CQRS patterns and templates.

Limitations

  • Use this skill only when the task clearly matches the scope described above.
  • Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
  • Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

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