This agent skill provides expert guidance for AI coding tools on modern Swift Testing practices. It targets teams adopting Swift Testing, developers migrating from XCTest, and those debugging complex test scenarios, offering actionable best practices to improve test quality, architecture, and reliability.

How It Works

The skill distills practical Swift Testing guidance from SwiftLee articles and WWDC sessions into an implementation-oriented playbook for AI assistants. It focuses on correctness, readability, and maintainability, prioritizing Swift Testing primitives, parallel defaults, and macro-based diagnostics. The approach is source-grounded, non-opinionated, modern-first, and designed for practical application in AI agent workflows.

Quick Start & Requirements

• Installation: Recommended via skills.sh: npx skills add https://github.com/avdlee/swift-testing-agent-skill --skill swift-testing-expert. Alternatively, use Claude Code plugin (/plugin marketplace add AvdLee/Swift-Testing-Agent-Skill) or manual cloning.
• Prerequisites: An AI coding tool supporting the Agent Skills open format (e.g., Claude Code, Cursor). A Swift development environment.
• Links: skills.sh platform page (implied), Claude Code documentation, Cursor documentation.

Highlighted Details

• Guides test architecture decisions, including suites, traits, tags, display names, and parameterized tests.
• Facilitates pragmatic migration from XCTest, enabling coexistence and mapping common assertion patterns.
• Enhances test reliability and performance through parallel execution patterns, isolation strategies, and async bridging.
• Improves test writing with modern assertion macros like #expect and #require, clear error modeling, and readable diagnostics.

Maintenance & Community

Created by Antoine van der Lee, the skill welcomes contributions following the Agent Skills open format. Guidance for contributions is available in CONTRIBUTING.md. No specific community channels (like Discord/Slack) are listed.

Licensing & Compatibility

This skill is open-source under the MIT License, permitting broad compatibility for commercial use and integration with closed-source projects.

Limitations & Caveats

The provided README does not explicitly detail any limitations, alpha status, or known bugs of the skill.