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Xcode

Skill G1Joshi/Agent-Skills/skills/tools/xcode

Xcode Apple development IDE with simulators. Use for iOS/macOS development.From its SKILL.md

Install
npx -y skills add G1Joshi/Agent-Skills --skill xcode

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

  • 12 stars12 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

1.2 KB, 272 tokens by cl100k_base, as published. Nobody here has run it

Xcode

Xcode is the only IDE for native Apple platforms. 2025 (Xcode 17) brings Swift Assist and Predictive Code Completion running locally on Apple Silicon.

When to Use

  • iOS/macOS: Building native apps.
  • SwiftUI: "Previws" canvas is essential.
  • Instruments: Deep performance profiling of Apple apps.

Core Concepts

Project/Workspace

.xcodeproj and .xcworkspace. Use Workspaces if using CocoaPods or multiple projects.

SwiftUI Previews

#Preview macro (Swift 5.9+) allows instant rendering of views.

Simulators

Run iOS on your Mac.

Best Practices (2025)

Do:

  • Use Swift Testing: The new Testing framework (macro-based) replaces XCTest.
  • Use .xcstrings: The new String Catalog format for localization (replaces .strings).
  • Use CloudKit Console: Debug database data directly from the IDE/Web.

Don't:

  • Don't fight the build system: If weird errors occur, Product > Clean Build Folder (Cmd+Shift+K) is the first troubleshooting step.

References

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Keep looking

Skills are one crate of 628,971. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.