swift-package-manifest

Refactor Package.swift manifests using private static properties and extensions.

Updated Oct 19, 2025
One-click install
npx skills add https://github.com/igor1309/skills --skill swift-package-manifest
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swift-package-manifest
Source: https://github.com/igor1309/skills/tree/main/swift-package-manifest
Command: npx skills add https://github.com/igor1309/skills --skill swift-package-manifest

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Many Package.swift files rely on inline string literals and repetitive definitions that are error-prone and hard to maintain as a package grows. This Skill provides a clear, scalable pattern to make manifests type-safe, readable, and easier to refactor.

Core Features & Use Cases

  • Static property pattern: Replace magic strings with private extensions and static properties to enable compile-time checks and reduce typos.
  • Organized extensions: Encourage a consistent extension order (Products, Targets, Target.Dependency, String constants, Package.Dependency) and private visibility.
  • Scenarios: Use when creating new Package.swift files, adding modules or targets, migrating large multi-target packages to array grouping, or defining external package dependencies cleanly.
  • Guidance & references: Includes instructions for test targets, plugin and binary targets, conditional dependencies, and resource handling with practical templates and a detailed reference.

Quick Start

Generate a clean Package.swift using the static property pattern for a new package named MyApp with core and tests targets.

Frequently Asked Questions about swift-package-manifest

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I organize a large Swift Package manifest with grouped targets?

To organize a large Swift Package manifest, apply array grouping for target sets and use private static properties for dependencies. This pattern replaces inline string literals with type-safe constants to make multi-module packages readable and easier to refactor.

What is the best way to remove magic strings from a Package.swift file?

The best way to remove magic strings from a Package.swift file is replacing inline string literals with private static properties and organized extensions. This enables compile-time checks, reduces typos, and makes the manifest type-safe.

How do I add external package dependencies cleanly in Swift Package Manager?

To add external package dependencies cleanly in Swift Package Manager, define them using optional Package.Dependency entries and private static properties. This keeps dependency declarations organized and prevents repetitive string definitions.

Does this Swift Package manifest pattern support test targets and plugins?

Yes, this Swift Package manifest pattern supports test targets, plugin targets, and binary targets. It includes specific instructions and practical templates for handling conditional dependencies and resources within these target types.

When should I refactor my Package.swift to use private extensions?

You should refactor your Package.swift to use private extensions when your package grows into a multi-module framework and inline strings become hard to maintain. Applying a consistent extension order improves readability and compile-time safety for large target sets.

How do I configure a Swift 6 header with preconcurrency in a package manifest?

To configure a Swift 6 header in a package manifest, include the @preconcurrency attribute in your definitions. This Skill provides templates that integrate Swift 6 headers with the static property pattern for clean concurrency handling.