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Error handling & SAGA

Why you need it​

Failures need explicit transitions and compensating actions, not silent queue DLQs.

Code examples​

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# On execute failure → ProceedTo compensation Step
# See examples money transfer saga.

Use execute failure movements and compensating Steps (see money-transfer use case).

How Dex implements it​

Step failure policies and recovery options are first-class. Compensations are just more Steps.

Traditional workarounds​

SAGA coordinators, choreography via events, and brittle “undo” scripts are common without Durable Execution.