Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/abdullah4ai/apple-developer-toolkit/layoutnpx skills add Abdullah4AI/apple-developer-toolkit --skill layoutgit clone --depth 1 https://github.com/Abdullah4AI/apple-developer-toolkitWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00056 | $0.00911 |
| Opus 5 | $0.00028 | $0.00456 |
| Sonnet 5 | $0.00011 | $0.00182 |
| Haiku 4.5 | $0.00006 | $0.00091 |
Grade A, and why
layout scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Layout Patterns (macOS)
Window Default Sizing
WindowGroup {
ContentView()
}
.defaultSize(width: 900, height: 600)
Window Resizability
// Allow free resizing with a minimum content size
WindowGroup {
ContentView()
.frame(minWidth: 600, minHeight: 400)
}
.windowResizability(.contentMinSize)
// Fixed content size (non-resizable)
Window("Preferences", id: "prefs") {
PreferencesView()
}
.windowResizability(.contentSize)
Toolbar
NavigationSplitView {
SidebarView()
} detail: {
DetailView()
.toolbar {
ToolbarItem(placement: .principal) {
Text("Document")
.font(AppTheme.Fonts.headline)
}
ToolbarItemGroup {
Button("Share", systemImage: "square.and.arrow.up") { share() }
Button("Settings", systemImage: "gear") { openSettings() }
}
}
}
Customizable Toolbar
.toolbar(id: "editor") {
ToolbarItem(id: "bold", placement: .automatic) {
Button("Bold", systemImage: "bold") { toggleBold() }
}
ToolbarItem(id: "italic", placement: .automatic) {
Button("Italic", systemImage: "italic") { toggleItalic() }
}
}
.toolbarRole(.editor)
Sidebar Column Width
NavigationSplitView {
SidebarView()
.navigationSplitViewColumnWidth(min: 180, ideal: 220, max: 300)
} content: {
ContentList()
.navigationSplitViewColumnWidth(min: 250, ideal: 300)
} detail: {
DetailView()
}
Adaptive Sizing
GeometryReader { geometry in
let columns = geometry.size.width > 800
? [GridItem(.adaptive(minimum: 200))]
: [GridItem(.adaptive(minimum: 150))]
LazyVGrid(columns: columns) {
ForEach(items) { item in
ItemCard(item: item)
}
}
}
Dynamic Type + Accessibility
@Environment(\.dynamicTypeSize) var dynamicTypeSize
var body: some View {
VStack(spacing: AppTheme.Spacing.medium) {
Text(title)
.font(AppTheme.Fonts.headline)
Text(subtitle)
.font(AppTheme.Fonts.body)
}
.padding(AppTheme.Spacing.large)
}
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 148 lines · 56 tokens per session scan A 10f5fd3a253c
layout is a skill published in the GitHub repository Abdullah4AI/apple-developer-toolkit (10 stars, last pushed 4d ago), licensed MIT. It adds 56 tokens to every session and 911 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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