AvdLee/Swift-Testing-Agent-Skill

An agent skill focused entirely on Swift Testing, helping you write better tests, migrate from XCTest, improve test architecture, and adopt modern Swift testing patterns with confidence.

What it solves

This project provides a specialized knowledge base (a "skill") for AI coding tools to help developers implement and migrate to the modern Swift Testing framework. It solves the problem of AI agents lacking up-to-date, practical guidance on Swift Testing APIs, XCTest migration strategies, and parallel execution patterns.

How it works

It follows the Agent Skills open format, providing a structured set of Markdown references (including playbooks and decision points) that an AI agent can ingest. These references cover topics such as #expect and #require macros, parameterized testing, async testing, and the coexistence of Swift Testing and XCTest within a single target.

Who it’s for

  • Developers and teams adopting the new Swift Testing framework.
  • Engineers migrating existing XCTest suites incrementally.
  • Developers debugging flaky tests or optimizing parallel test execution.

Highlights

  • Source-grounded guidance: Based on WWDC 2024 sessions and comprehensive SwiftLee articles.
  • Migration support: Detailed mappings from XCTAssert* patterns to modern Swift Testing macros.
  • Modern-first approach: Prioritizes macro-based diagnostics and parallel defaults over legacy styles.
  • Broad tool compatibility: Supports installation via skills.sh, Claude Code plugins, and manual installation for tools like Cursor and Codex.

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