Build read models and projections from event streams. Use when implementing CQRS read sides, building materialized views, or optimizing query performance in event-sourced systems.
8.1
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Backend Development
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Excellent skill for building event-sourced projections and CQRS read models. The description clearly indicates when to use this skill (CQRS, materialized views, event streams). Provides comprehensive task knowledge with 5 detailed templates covering basic projectors, database projections, Elasticsearch integration, aggregations, and multi-table updates. The structure is clear with core concepts, architectural diagrams, and best practices. Novelty is solid as implementing event-sourced projections with checkpointing, idempotency, and multiple storage backends requires significant domain knowledge and boilerplate that a CLI agent would struggle to generate correctly. Minor room for improvement in describing error recovery patterns and testing strategies, but overall a strong, production-ready skill.
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