Init Xcode App Skill for Claude

init-xcode-app

Scaffolds a native SwiftUI app with XcodeGen (project.yml → generated, committed .xcodeproj),

pre-loaded with the conventions and loop-closer toolchain (xcsift, the Xcode MCP, swiftformat/lint).

The lighter native sibling of init-tauri-app.

When to use

• "init an xcode project", "scaffold a swiftui app", "new macOS/iOS app".

Prerequisites (verify before scaffolding)

• xcodegen on PATH (xcodegen --version; brew install xcodegen if missing).
• Xcode + CLT (xcodebuild -version).

Procedure

1. Gather inputs (AskUserQuestion)

• App name (PascalCase, e.g. Tidepool) → <Name>; lowercase → <name>.
• Bundle-id prefix (default com.glebkalinin) → <bundlePrefix>.
• DEVELOPMENT_TEAM (optional — blank allowed) → <TEAM>.
• Target shape: ios | macos | ios-watchos.
• Modules (multi-select): CloudKit · CI · Release · Push.
• JTBD artifact (optional): path to a jtbd.json (else auto-discover ./jtbd.json, ~/jtbd/<name>/jtbd.json). See 1.5.
• Target directory (default ~/ai_projects/<name>). Abort if non-empty.

1.5 Ingest JTBD (optional, additive)

Identical contract to init-tauri-app: resolve (explicit → ./jtbd.json → ~/jtbd/<name>/jtbd.json),

confirm via hook, validate (render-jtbd.sh exits 3 → skip), pre-fill name. Artifacts written in Step 3.

2. Render core

Copy assets/core/common/* into the project (renames: gitignore→.gitignore, swiftformat→.swiftformat,

CLAUDE.md→.claude/CLAUDE.md). Copy assets/core/shapes/<shape>/* into the project root. For macos,

also copy assets/core/shapes/ios/Sources + Tests (macos reuses the same SwiftUI sources). Substitute

<Name>/<name>/<bundlePrefix>/<TEAM> in every copied file. Blank <TEAM> → leave the placeholder line

DEVELOPMENT_TEAM: "".

If a JTBD artifact was confirmed: render assets/jtbd/PRODUCT.md.template→docs/PRODUCT.md,

guardrails-check.md.template→docs/internal/guardrails-check.md, insert

agents-product-section.md.template into AGENTS.md after the first heading, copy the artifact to

project-root jtbd.json. See assets/jtbd/jtbd-map.md.

3. Compose selected modules

For each selected module open assets/modules/<m>/INSERT.md and follow it: it lists source files to copy

and a project-fragment.yml to merge into project.yml (merge into the existing targets.<Name> and

entitlements: maps — never overwrite). CloudKit + Push both extend the same entitlements: map.

4. Generate + verify (the gate)

xcodegen generate

Then the unsigned build gate by shape:

• ios / ios-watchos: xcodebuild build -scheme <Name> -destination 'generic/platform=iOS Simulator'
• macos: xcodebuild build -scheme <Name> -destination 'platform=macOS' CODE_SIGNING_ALLOWED=NO

Then xcodebuild test against the same destination for the test target. Both must pass.

5. Handoff

Offer git init && git add -A && git commit. Print summary: shape, modules, signing note

(device/release signing is a human step), next command (open <Name>.xcodeproj).