No hand-maintained parallel copy of what an authoritative source already knows. The copy is written carefully and drifts anyway; a missed entry ships silently.
Remedies, strongest first: derive the projection; or guard the property, not the list (a test asserting “the list contains these names” is the drifting list in a costume); or, if a hand list must remain, choose its failure polarity and say so in a comment. Fail-stale — the miss ships as silently wrong behavior — is never acceptable, and is the naive default.