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This skill should be used when building iOS apps with xtool (Xcode-free iOS development), creating xtool projects, adding app extensions, or configuring xtool.yml.
Passed 20 of 22 test cases with the skill, and 7 of 22 without it.
and 17 more in the full report
14 fixed6 passed either way1 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
What exact string value must be assigned to NSExtensionPointIdentifier in the extension's Info.plist when creating a Share extension versus a Custom Keyboard extension?
| Checked | Without skill | With skill |
|---|---|---|
| Identifies com.apple.share-services as the identifier string for Share extensions. | Passed | Passed |
| Rejects standard app bundle identifiers in favor of system extension point identifiers for keyboard extensions. | Missed | Passed |
The instructions your model reads when the skill loads.
xtool is a cross-platform Xcode replacement for building iOS apps with SwiftPM on Linux, Windows, and macOS. It is NOT XcodeGen, Tuist, or Xcode project files.
| xtool Uses | NOT These |
|---|---|
xtool.yml | project.yml, Project.swift |
Package.swift (SwiftPM) | Xcode project files |
xtool dev | xtool build, xtool run, xtool generate |
Sources/ directory | Extensions/ directory |
MyApp/
├── Package.swift # SwiftPM package definition
├── xtool.yml # xtool configuration
├── Sources/
│ ├── MyApp/ # Main app target
│ │ ├── MyAppApp.swift
│ │ └── ContentView.swift
│ └── MyWidget/ # Extension target (if any)
│ └── Widget.swift
├── MyApp-Info.plist # Optional custom Info.plist
└── MyWidget-Info.plist # Required for extensions
# Project lifecycle
xtool new MyApp # Create new project
xtool new MyApp --skip-setup # Create without running setup
xtool dev # Build + run (same as `xtool dev run`)
xtool dev build # Build only
xtool dev build --ipa # Build IPA file
test cases passed, vs 7 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.