Checked every mirror before answering. skills/project-request-intake/SKILL.md line 303 carries the section "Replies Must Be Delivered AND Verified" and the bolded invariant, and so do all six delivered copies. The text was never removed.

What failed is the check: the sentence was wrapped as "...is not sent until the configured
upstream inbox contains...", so a search for the literal string "is not sent until the configured upstream" finds nothing. Three consecutive versions were reported missing on that basis, and reverted downstream each time.

Rewrapped so the invariant sentence sits on one line in all seven copies. A contract that other repos grep for should not be breakable by a line wrap.