FA-832 / Queues / Member archive

Redrive a previously dead-lettered message: Redrive races an updated dead-letter record · case 02

The queue redrive operation is admitted even though redrive races an updated dead-letter record.

Member previewVariant 2 · 3 implementations · 9 checks per implementation

Case contract

Return a Boolean admission decision for redrive a previously dead-lettered message. The record r must satisfy all of: r['redrive_budget'][0] < r['redrive_budget'][1]; r['source_version'][0] == r['source_version'][1]; r['destination_schema'][0] in r['destination_schema'][1]; r['retention_remaining'][0] < r['retention_remaining'][1]; r['rate_tokens'][0] >= r['rate_tokens'][1]. Extra tracing fields are ignored; validation does not mutate the record.

Why this case matters

A deterministic local contract for queues. 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
Redrive races an updated dead-letter record	`true`	`false`	Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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