{"id":"dynamodb-transaction-2x-capacity-cost","text":"Each item in a DynamoDB transaction consumes 2x capacity (one prepare phase + one commit phase) — 2 WCUs per write or 2 RCUs per read.","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-developerguide-transaction-apishtml.md","source_url":"","source_hash":"87e1819a926641ef","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-transaction-2x-capacity-cost","truth_value":"IN","reason":"premise"}]}}