swiftship/internal/skills/data/extensions/safari-extension/SKILL.md
Safari Web Extension: SFSafariExtensionHandler, content scripts, web resources, native-web messaging. Use when building a Safari browser extension, injecting content scripts into web pages, or communicating between native app and Safari. Triggers: Safari extension, SFSafariExtensionHandler, content script, browser extension.
npx skillsauth add abdullah4ai/apple-developer-toolkit safari-extensionInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SAFARI WEB EXTENSION: SETUP: Requires separate extension target (kind: "safari" in plan extensions array). Safari Web Extensions use web technologies (JS/HTML/CSS) plus a native Swift wrapper.
SWIFT EXTENSION HANDLER (optional — for native communication): class SafariExtensionHandler: SFSafariExtensionHandler { // Called when toolbar button is clicked override func toolbarItemClicked(in window: SFSafariWindow) { window.getActiveTab { tab in tab?.getActivePage { page in page?.dispatchMessageToScript(withName: "buttonClicked", userInfo: [:]) } } }
// Receive messages from JavaScript content scripts
override func messageReceived(withName messageName: String, from page: SFSafariPage, userInfo: [String: Any]?) {
// Handle message from JS: page.dispatchMessageToExtension(...)
}
}
INFO.PLIST KEYS (extension): NSExtensionPrincipalClass: $(PRODUCT_MODULE_NAME).SafariExtensionHandler NSExtensionAttributes: SFSafariWebsiteAccess: { Level: All }
WEB EXTENSION RESOURCES (in extension bundle):
ENABLE IN SAFARI: User must enable in Safari → Settings → Extensions.
testing
Use for 3D games: racing, 3D sports, board games, marble maze, tower defense, bowling. SceneKit + SceneView architecture, 3D scene hierarchy, physics, game loop, primitives, materials, cameras, particles, audio.
documentation
Game UI patterns: SwiftUI HUD overlays on SpriteKit, menus (main/pause/game-over), virtual joystick/d-pad, score displays, health bars, tutorial onboarding.
tools
Download free game sprites/textures/3D models and generate procedural assets. Covers nw_download_asset tool, texture factories, sprite atlas organization, 3D model loading, and programmatic asset creation.
testing
Use for 2D games: arcade, puzzle, sports, ping pong, platformer, shooter, 2D racing. SpriteKit + SpriteView architecture, scene hierarchy, physics, game loop, audio, particles, game feel.