From ce79ef24dac5a9c54d09a30f642ad3cd697a0c63 Mon Sep 17 00:00:00 2001
From: Thomas Ricouard <ricouard77@gmail.com>
Date: Sun, 15 Mar 2026 10:40:22 +0100
Subject: [PATCH] Enhance SKILL.md with fallback guidance for iOS 16 and
 earlier. Added recommendation to use `ObservableObject` with appropriate
 ownership attributes when the Observation API is unavailable.

---
 .DS_Store                    | Bin 0 -> 6148 bytes
 swiftui-ui-patterns/SKILL.md |   1 +
 2 files changed, 1 insertion(+)
 create mode 100644 .DS_Store

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..7c951aea124058242530ca12b5d8c58fc785af99
GIT binary patch
literal 6148
zcmeHK%}N6?5T4X(yNFOwp~ryNinabg@v>BX0ax^(Qg><9#dTA<yY8VB_N*`DllVN&
zB&k@c;6cR73{1YsWF~38l*|SIL?`QQ1JnSZib_~=u=zx2oODJ?)<Y=t94TZF!lrI#
z!rAc$8KARUg#>auw;T9)ew#1=A3Z7bVF)oKL7ohPNClYj5)7g+Nt?}AQCcW3E>$W{
zWw~<Y-KpG5{WMED{_ui&r%FY^#P)-;u%CBpYlkXM{V?tibwb$dW60%s8241(QCZwe
zbgpLx9H;7ZYxU8n)!uK&oxS~WLyp?5W<&0_TjQ})UEkO`IO*O;53zbO3=8}>YFV*3
zfoC+nx!Xr?7)L6;#f-^plUW#<0cL<1n0E&3y;fbG_l@xHX9k#oA7_B>2Z>7PS}Y9e
zs{<SQe5CO*Aqm>_mLQZCU5kZ596=E#715*$`@|3?9sSbAxfTn9CLM%c8RxMp3;RM5
zdUf<m9S*`Z$SpI#3`{eyV7fJ`|Hogy|EH6<#|$t7|B3-oKJtz_xFuU#XEsN*R-#^`
ql2BY>@I3_$U5YW5N^u=k3;HD)h_1!LAbL>vLqOBO4Kwho47>p$`&8Nh

literal 0
HcmV?d00001

diff --git a/swiftui-ui-patterns/SKILL.md b/swiftui-ui-patterns/SKILL.md
index fe309df..e39b7b8 100644
--- a/swiftui-ui-patterns/SKILL.md
+++ b/swiftui-ui-patterns/SKILL.md
@@ -28,6 +28,7 @@ Choose a track based on your goal:
 ## General rules to follow
 
 - Use modern SwiftUI state (`@State`, `@Binding`, `@Observable`, `@Environment`) and avoid unnecessary view models.
+- If the deployment target includes iOS 16 or earlier and cannot use the Observation API introduced in iOS 17, fall back to `ObservableObject` with `@StateObject` for root ownership, `@ObservedObject` for injected observation, and `@EnvironmentObject` only for truly shared app-level state.
 - Prefer composition; keep views small and focused.
 - Use async/await with `.task` and explicit loading/error states.
 - Maintain existing legacy patterns only when editing legacy files.