projection-patterns

SUMMARY

What it does

This Agent Skill provides guidance on building projections and read models for event-sourced systems. It covers projection architecture, types (live, catchup, persistent, inline), and best practices for idempotency, transactions, checkpoints, monitoring lag, and planning for rebuilds. The skill is intended for use when implementing CQRS read sides, creating materialized views, optimizing query performance, implementing real-time dashboards, building search indexes from events, and aggregating data across streams. The source content was inspected and found to be a markdown file with 63 lines, containing templates and references to detailed examples in a separate file.