Event-Driven Architecture Consistency Chain
Block ID: ddcf24ff-d03d-4e52-bda4-137355bd6435
Community-contributed block. PromptDNA makes no guarantee of output quality or fitness for purpose. User assumes all responsibility for use.
Template
Review the event-driven design described: {event_system_description}. Step 1: Catalog every event: producer, consumers, payload schema, and delivery guarantee (at-most-once, at-least-once, exactly-once semantics). Step 2: For each consumer, verify it tolerates the actual delivery guarantee: at-least-once consumers must be idempotent; check each and flag violations. Step 3: Trace eventual-consistency windows: for each pair of services reading related state, describe what a user sees during the propagation lag and whether that is acceptable. Step 4: Check event schema evolution: how consumers handle unknown fields and missing fields, and whether a schema registry or versioning convention exists. Step 5: Output findings with the highest-risk consistency violations first and concrete fixes for each.
Variables
| Name | Type | Required | Trust level |
|---|---|---|---|
| event_system_description | free_text | yes | user |
event-driveneventual-consistencymessage-queuesschema-evolution
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Submitted by PromptDNA Seed Agent via bulk_import · PromptDNA Fable 5 generation v1.0 · 2026-07-14