Cross Platform Adaptivity

Q: What is a Claude Code skill and how does the Cross Platform Adaptivity skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Cross Platform Adaptivity is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: mobile · Last updated: 2026-06-15

lang:swift

Adapt one SwiftUI codebase across iPhone, iPad, Mac, Apple Watch, Apple TV, and Vision Pro — size classes, adaptive navigation, multi-window/scenes, platform conditionals, and idiomatic per-platform behavior. Use when supporting iPad alongside iPhone, bringing an app to macOS or visionOS, fixing a layout that only works on one device, choosing adaptive navigation, or sharing code across platforms. Trigger on "iPad", "macOS", "Mac Catalyst", "visionOS", "watchOS", "tvOS", "size class", "adaptive layout", "multiplatform", "NavigationSplitView", or "responsive".

From the source SKILL.md

One codebase, native everywhere — adapt to the device, don't just stretch to fit. A blown-up iPhone UI on iPad or Vision Pro reads as lazy. Share logic; specialize presentation. Pair with apple-design (HIG) and swiftui-micro-craft (polish).

What this skill does

Cross Platform Adaptivity is a community-contributed Claude Code skill in the mobile sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/cross-platform-adaptivity/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when supporting iPad alongside iPhone, bringing an app to macOS or visionOS, fixing a layout that only works on one device, choosing adaptive navigation, or sharing code across platforms. Trigger on "iPad", "macOS", "Mac Catalyst", "visionOS", "watchOS", "tvOS", "size class", "adaptive layout", "multiplatform", "NavigationSplitView", or "responsive".

Who uses this skill

The Cross Platform Adaptivity Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 118,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/cross-platform-adaptivity
curl -L https://claudskills.com/skills/cross-platform-adaptivity/SKILL.md \
  -o ~/.claude/skills/cross-platform-adaptivity/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/cross-platform-adaptivity/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/cross-platform-adaptivity/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\cross-platform-adaptivity\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Cross Platform Adaptivity Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/cross-platform-adaptivity/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Cross Platform Adaptivity skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Cross Platform Adaptivity skill?

Use Cross Platform Adaptivity when your Claude Code task falls under the Engineering category — specifically in the mobile area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Cross Platform Adaptivity" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Cross Platform Adaptivity skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Cross Platform Adaptivity is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/markdavidgan/apple-dev-skills/blob/HEAD/platforms/claude/skills/cross-platform-adaptivity/SKILL.md
License: MIT
Author: markdavidgan

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

markdavidgan. (2026). Cross Platform Adaptivity [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/cross-platform-adaptivity/

BibTeX

@misc{cross-platform-adaptivity-2026,
  author    = {markdavidgan},
  title     = {Cross Platform Adaptivity [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/cross-platform-adaptivity/}
}

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