When the verify job fails, print the exact list of packages that failed
typecheck, ready to copy into tooling/ci/.typecheck-debt. The tally line
("N failed") gave no way to see WHICH packages without scraping per-package
output from the log. Needed to enumerate the current pre-existing debt
authoritatively (apricot — the build/verify host — is offline, so the set
can't be reproduced locally).
Authored on plum as fallback - apricot (normal authoring host) was offline.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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