'2abc' silently became 2 and '3.7' became 3 despite the error text claiming
a positive-integer requirement. Strict /^\d+$/ pre-check; both shapes pinned.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The gate equated 'some failure attributed' with 'all failures attributed': a
shard with one attributed failure plus a headerless failure, an unhandled
error between tests, or a truncated run (no terminal summary) qualified for
retry — re-running only failingFiles and masking the rest as FLAKY-PASS,
re-opening the silent-truncation hole the strict classifier closes.
FreeShardOutcome now carries unattributedFailures; nonzero vetoes the retry.
Pins: mixed shard, truncated-with-attributed shard, empty-shard field values.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
