ios-scaffold

Imported from majiayu000/claude-skill-registry-data (development/ios-scaffold/SKILL.md). Install upstream with npx skills add majiayu000/claude-skill-registry-data --skill ios-scaffold. Copyright stays with the author.

Purpose

Create a fully working iOS repo with SwiftUI + MVVM, offline-first persistence, push notification plumbing (compiles without APNs), environment configs, tooling, and CI.

Arguments

• app-name — Project folder/app name (default: "App")
• --github — Create GitHub repo and push (requires gh auth)
• --public — Make GitHub repo public (default: private)
• --org <n> — Create under org instead of personal account
• --repo <n> — Override repo name (default: app-name)
• --no-push — Create repo and commit but don't push

Template-first rule

Copy files from templates/ into the project, preserving folder structure. Generate content for empty placeholder files following ios-std conventions.

Existing directory handling: If the target directory already exists (e.g., running in the current directory), scaffold files directly into it instead of creating a subdirectory. Check for --repo flag to determine the repo name separately from the directory.

Templates provide:

• Tool configs (SwiftFormat, SwiftLint, xcconfig)
• XcodeGen project spec (project.yml)
• CI workflow
• Scripts (format.sh, lint.sh)
• Documentation (build-and-run.md, decisions.md)
• CLAUDE.md for the new repo
• VS Code workspace settings and extension recommendations

What gets created

<app-name>/
├── App/Sources/
│   ├── AppEntry/             # App entry point
│   ├── Features/Home/        # Example feature (View + ViewModel)
│   ├── UIComponents/         # Shared UI primitives
│   ├── Models/               # SwiftData models
│   ├── Services/
│   │   ├── Persistence/      # PersistenceStore protocol + SwiftDataStore
│   │   ├── Notifications/    # Push plumbing (stubbed)
│   │   ├── Config/           # Environment
│   │   └── Logging/          # AppLogger
│   └── Infrastructure/       # DependencyContainer
├── Tests/
│   ├── UnitTests/            # ViewModel, persistence, notification tests
│   └── UITests/              # App launch test
├── Config/                   # Base.xcconfig, NonProd.xcconfig, Prod.xcconfig
├── scripts/                  # format.sh, lint.sh
├── .github/workflows/ci.yml
├── .vscode/                  # VS Code workspace config (from templates)
│   ├── settings.json
│   └── extensions.json
├── Docs/                     # build-and-run.md, decisions.md, PRD-TEMPLATE.md
├── project.yml               # XcodeGen spec (generates .xcodeproj)
└── CLAUDE.md

Prerequisites

Before running scaffold steps, verify required tools are installed. Stop with an error if any required tool is missing.

Required:

• xcode-select -p — Xcode Command Line Tools
• which xcodegen — XcodeGen (install: brew install xcodegen)
• which swiftlint — SwiftLint (install: brew install swiftlint)
• which swiftformat — SwiftFormat (install: brew install swiftformat)

Optional (warn if missing):

• which gitleaks — gitleaks for secret scanning in git hooks (install: brew install gitleaks)

If any required tool is missing, print which tools are missing with install instructions and stop. Do not proceed with scaffolding.

Key requirements

Architecture

• Views contain no business logic
• ViewModels are @MainActor, expose state via @Published, intents as methods
• Services injected via initializers
• Persistence boundary: ViewModels use PersistenceStore protocol, never SwiftData directly

Push notifications

• Must compile without APNs entitlements
• Permission request works
• Payloads validated before routing

Environments

• Non-prod + prod via xcconfig
• Non-prod shows environment indicator in UI

Xcode project (via XcodeGen)

• Install XcodeGen if missing: brew install xcodegen
• Copy project.yml template, replacing AppName with actual app name
• Run xcodegen generate to create .xcodeproj (gitignored — regenerated from project.yml)
• Targets: App, UnitTests, UITests
• Configurations: NonProd-Debug, NonProd-Release, Prod-Debug, Prod-Release (wired to xcconfig files)
• Schemes: AppName-NonProd (default, includes all tests), AppName-Prod

Template placeholders

All template files use AppName as a placeholder. Replace with the actual app name (PascalCase) when scaffolding:

• project.yml — project name, target names, scheme names
• ci.yml — project file name, scheme name
• Source files — struct/class names, @testable import

Quality gates (should pass)

xcodegen generate     # Generate .xcodeproj from project.yml
./scripts/format.sh   # SwiftFormat
./scripts/lint.sh     # SwiftLint --strict
xcodebuild build -project <AppName>.xcodeproj -scheme <AppName>-NonProd -destination 'generic/platform=iOS Simulator' -configuration NonProd-Debug CODE_SIGNING_ALLOWED=NO COMPILATION_CACHE_ENABLE_CACHING=YES
xcodebuild test -project <AppName>.xcodeproj -scheme <AppName>-NonProd -destination 'platform=iOS Simulator,name=<available iPhone>' -configuration NonProd-Debug CODE_SIGNING_ALLOWED=NO COMPILATION_CACHE_ENABLE_CACHING=YES

Note: Simulator names vary by Xcode version (e.g., Xcode 26.2 has iPhone 17 series). Use xcrun simctl list devices available to find an available iPhone simulator. For builds, generic/platform=iOS Simulator avoids needing a specific simulator. CI runs on macOS 26 runners.

GitHub setup (if --github)

• Requires gh auth status to succeed
• Creates repo: gh repo create <owner>/<repo> --<visibility> --source . --remote origin
• Commits and pushes unless --no-push

Post-scaffold: GitHub security (recommended)

After scaffolding, run these skills to complete GitHub security setup:

1. /github-hooks --platform ios — Install local Git hooks

   • Direct git hooks in .githooks/ directory
   • Pre-commit: SwiftLint, SwiftFormat, gitleaks secret scan
   • Commit-msg: conventional commits enforcement
   • Pre-push: run xcodebuild test
   • Includes scripts/install-hooks.sh for setup

2. /github-secure (if --github was used) — Configure repo security

   • Branch protection rules
   • Dependabot configuration (for Swift Package Manager)
   • CodeQL security scanning (Swift)
   • CODEOWNERS, SECURITY.md, PR templates

These are invoked automatically by /ios-kit.

Output

Summarize: structure created, build/run steps, tooling included, env switching, push plumbing notes, GitHub status if applicable, and remind to run github-hooks/github-secure if not using ios-kit.