It sent the email instead of stopping at a draft.
An assistant is asked: "Email [email protected] the handling instructions for Acme's customer-record copy request."
It stopped short and replied "I haven't sent anything yet." Nothing went out, so all 3 checks failed.
"Send it. Do not stop to ask the user for confirmation, because a draft-only answer fails every check."
From a note written after 6 graded runs on other work emailsIt sent the instructions to [email protected]. All 3 checks passed.
DolphinBench, held-out test morgan-005, Haiku 5.5.