Is the Swift Testing Expert skill free?

Yes. The skill itself is free from AvdLee/Swift-Testing-Agent-Skill. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Swift Testing Expert SkillProof Score?

8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 5/5.

How do I install Swift Testing Expert?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Swift Testing Expert with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Swift Testing Expert

Guidance for writing Swift Testing tests and migrating XCTest suites

by AvdLee · AvdLee/Swift-Testing-Agent-Skill

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 8.8/10
Tested: Jul 21, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · a5c7d8c

Fetched SKILL.md at swift-testing-expert/ and spot-checked 3 of 9 reference files (expectations, migration-from-xctest, parameterized-testing) — all HTTP 200; frontmatter parses with name+description. Output test: gave the same XCTest fixture (3 near-identical discount test methods + a force-unwrapped user lookup) a baseline 1:1 migration vs a skill-followed one. Concrete diffs: baseline kept three separate @Test methods and preserved `#expect(user != nil)` then `user!`; following the skill's rule 5 and migration step 4 collapsed the three into one @Test(arguments:) parameterized test, and rule 2 / the try-XCTUnwrap mapping replaced the force-unwrap with `try #require(...)` in a throwing test. Both artifacts saved to scratchpad. No security smells; no scripts, curl|sh, or injection text.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 7/10
Docs & honesty 5/5

What Swift Testing Expert does

A guidance skill for Swift Testing: it steers test structure, #expect/#require usage, traits/tags, parameterized tests, parallel-safe isolation, async waiting, and incremental XCTest-to-Swift-Testing migration via nine topic reference files. Triggers when writing new Swift tests, modernizing XCTest suites, debugging flaky or parallel tests, or reviewing Swift test quality on Apple-platform or Swift-server projects.

How to install Swift Testing Expert

git clone --depth 1 https://github.com/AvdLee/Swift-Testing-Agent-Skill.git /tmp/swift-testing-expert-src
mkdir -p ~/.claude/skills
cp -R /tmp/swift-testing-expert-src/swift-testing-expert ~/.claude/skills/swift-testing-expert
# SKILL.md lands at ~/.claude/skills/swift-testing-expert/SKILL.md with its references/ dir.
# Pure guidance skill, no external deps/scripts to run.
# Plugin-marketplace alternative:
#   /plugin marketplace add AvdLee/Swift-Testing-Agent-Skill
#   /plugin install swift-testing-expert@swift-testing-agent-skill

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Swift Testing Expert

/swift-testing-expert Guidance for writing Swift Testing tests and migrating XCTest suites

It also activates on plain-language prompts like these:

Migrate this XCTest suite to Swift Testing
Write parameterized tests using #expect macros
Debug this flaky Swift test

Frequently asked questions

Is the Swift Testing Expert skill free?: Yes. The skill itself is free from AvdLee/Swift-Testing-Agent-Skill. SkillProof publishes the install command and an independent test verdict at no cost.
Does Swift Testing Expert work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 21, 2026. Verdict: Tested · Works. Fetched SKILL.md at swift-testing-expert/ and spot-checked 3 of 9 reference files (expectations, migration-from-xctest, parameterized-testing) — all HTTP 200; frontmatter parses with name+description. Output test: gave the same XCTest fixture (3 near-identical discount test methods + a force-unwrapped user lookup) a baseline 1:1 migration vs a skill-followed one. Concrete diffs: baseline kept three separate @Test methods and preserved `#expect(user != nil)` then `user!`; following the skill's rule 5 and migration step 4 collapsed the three into one @Test(arguments:) parameterized test, and rule 2 / the try-XCTUnwrap mapping replaced the force-unwrap with `try #require(...)` in a throwing test. Both artifacts saved to scratchpad. No security smells; no scripts, curl|sh, or injection text.
What is the Swift Testing Expert SkillProof Score?: 8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 5/5.
How do I install Swift Testing Expert?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Swift Testing Expert with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.