iPhone Duo (iOS 27.1) — adapt Swift apps to the foldable iPhone

Flags — answer and stop

The host appends the invocation's arguments as ARGUMENTS: …. If they contain one of these flags, print only the corresponding block and do nothing else — no repo reads, no audit, no toolchain gate. Anything else in the arguments is a normal request; ignore this section.

-v / --version — answer in one line, from the literal below:

iphone-duo 1.1.0 · references SDK-verified 2026-09-21 against iOS 27.1 (Xcode 27.1 beta 1) · design rules D1–D29