FA-1240 / Workflow orchestration / Member archive

Replay durable workflow history: Code executes a branch not selected by the recorded marker · case 05

The workflow replay operation is admitted even though code executes a branch not selected by the recorded marker.

Member previewVariant 5 · 3 implementations · 9 checks per implementation

Case contract

Return a Boolean admission decision for replay durable workflow history. The record r must satisfy all of: r['command_type'][0] == r['command_type'][1]; r['command_order'][0] == r['command_order'][1]; r['version_marker'][0] in r['version_marker'][1]; r['random_recorded'] is True; r['history_contiguous'] == list(range(len(r['history_contiguous']))). 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
Code executes a branch not selected by the recorded marker	`true`	`false`	Failed

MEMBER ARCHIVE

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