Swift Ecosystem Patterns

What it does

This skill captures comprehensive Swift ecosystem best practices for cross-platform CLI and library development (Swift 6.3). It documents language patterns (value types, optionals, protocols, generics), concurrency and memory rules, package layout, tooling (SwiftLint, SwiftFormat, SourceKit-LSP), testing patterns, and recommended workflows for building and validating Swift packages.

When to use it

Use this skill when working on Swift projects — creating or reviewing Package.swift, running swift build/test, applying lint/format rules, or when making design choices about concurrency, error handling, and API design. It's useful during code reviews, migrations to Swift 6, or when setting up CI and developer tooling.

What's included

• Scripts: none bundled, but exhaustive guidance, patterns, and example snippets are provided in the SKILL.md.
• References: detailed patterns, decision trees, and best-practice rules for Swift development.
• Instructions: conventions for Package.swift, swift build/test commands, swiftlint and formatting recommendations, and testing examples.

Compatible agents

Best for agents that provide coding assistance and documentation lookup (Claude Code, Copilot-style assistants, or any agent with access to repository files).