Carried summary lines must start YGG-SUMMARY/<nonce>:, the nonce exported into the
job; others are counted and ignored. Carried lines no longer drop failure sections.
Red summaries say NAMES MISSING when counts exceed names. wait trusts a .done only
when its run id matches .run; a missing summary never yields a bare exit 1.
mutation-table.sh must print the nonce prefix (separate branch).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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