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Event-Driven Architecture

A comprehensive guide to building systems where components communicate through events rather than direct calls. Event-driven architecture (EDA) decouples producers from consumers, enabling independent scaling, temporal decoupling, and resilience to downstream failures. This skill covers four core pillars: event sourcing (storing state as a sequence of events), CQRS (separating read and write models), message brokers (the transport layer), and eventual consistency (the consistency model that makes it all work). Agents use this skill to design, implement, and troubleshoot event-driven systems at any scale.

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