scripts/lib/test-quarantine.json is runtime data (which tests are
quarantined), not executable test infra, but it tripped the shared-infra
catch-all in isSharedInfraChange. That forced mode=gate, which runs only
the fixed engine-core + cli-shape gate suite and returns before the
affected packages -- so a dev's real changes (e.g. @fusion/core,
@fusion/dashboard) got zero coverage whenever they also touched the
quarantine list. Classify the file as test-irrelevant so the diff stays
in changed mode and the affected packages run.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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