Is the Apple Engineer Superpowers skill free?

Yes. The skill itself is free from piemonte/apple-engineer-superpowers. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Apple Engineer Superpowers SkillProof Score?

8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 4/5.

How do I install Apple Engineer Superpowers?

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 Apple Engineer Superpowers 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.

Apple Engineer Superpowers

Swift 6 concurrency, SwiftUI, Metal, and RealityKit/visionOS engineering standards for Apple platform code.

by piemonte · piemonte/apple-engineer-superpowers

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 8.8/10
Tested: Jul 14, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 58dc19b

Skill-guided version of a Swift network service swapped a force-unwrapped URL and a plain class for an actor, a Sendable LocalizedError enum, and a protocol seam for DI -- baseline (unguided) code had none of that by default.

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 8/10
Docs & honesty 4/5

What Apple Engineer Superpowers does

A core SKILL.md plus five detailed reference files (swift-concurrency, swiftui-architecture, metal-graphics, realitykit-visionos, advanced-swift-patterns) enforcing actor-first concurrency, Sendable everywhere, no force-unwrapping, and LocalizedError domain errors. Triggers whenever the user writes or reviews Swift code for iOS, macOS, or visionOS.

How to install Apple Engineer Superpowers

git clone https://github.com/piemonte/apple-engineer-superpowers
cd apple-engineer-superpowers
mkdir -p ~/.claude/skills
cp -r . ~/.claude/skills/apple-engineer-superpowers

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

Commands — how to trigger Apple Engineer Superpowers

/apple-engineer-superpowers Swift 6 concurrency, SwiftUI, Metal, and RealityKit/visionOS engineering standards for Apple platform code.

It also activates on plain-language prompts like these:

Write a Swift actor service that fetches a user over the network
Review my SwiftUI view for Swift 6 concurrency issues
Add proper error handling to this Swift networking code

Frequently asked questions

Is the Apple Engineer Superpowers skill free?: Yes. The skill itself is free from piemonte/apple-engineer-superpowers. SkillProof publishes the install command and an independent test verdict at no cost.
Does Apple Engineer Superpowers work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Tested · Works. Skill-guided version of a Swift network service swapped a force-unwrapped URL and a plain class for an actor, a Sendable LocalizedError enum, and a protocol seam for DI -- baseline (unguided) code had none of that by default.
What is the Apple Engineer Superpowers SkillProof Score?: 8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 4/5.
How do I install Apple Engineer Superpowers?: 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 Apple Engineer Superpowers 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.