FA-1212 / Workflow orchestration / Member archive

Run a saga compensation action: Retried compensation refunds the same side effect twice · case 02

The saga compensation operation is admitted even though retried compensation refunds the same side effect twice.

Member previewVariant 2 · 3 implementations · 9 checks per implementation

Case contract

Return a Boolean admission decision for run a saga compensation action. The record r must satisfy all of: r['forward_committed'] is True; all(r['reverse_dependency']); r['compensation_identity'][0] not in r['compensation_identity'][1]; r['resource_version'][0] == r['resource_version'][1]; r['compensation_registered'] is not None. Extra tracing fields are ignored; validation does not mutate the record.

Why this case matters

A deterministic local contract for workflow orchestration. Each negative fixture violates exactly one invariant. No transport timing, persistence, cryptographic verification, or full protocol implementation is claimed.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
Retried compensation refunds the same side effect twice	`true`	`false`	Failed

MEMBER ARCHIVE

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