Cross Platform

Q: What is a Claude Code skill and how does the Cross Platform 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 is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: general-misc · Last updated: 2026-05-31

Use AUTOMATICALLY when developing or modifying code that exists on both macOS (Swift/AppKit) and Windows (C#/WPF), or when creating new cross-platform features. Ensures p — from Pepsi1978/proggs

What this skill does

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

Who uses this skill

The Cross Platform Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 119,000+ 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
curl -L https://claudskills.com/skills/cross-platform/SKILL.md \
  -o ~/.claude/skills/cross-platform/SKILL.md

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

Skills live at ~/.claude/skills/cross-platform/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\cross-platform\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 Claude Code skill?

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

What does the Cross Platform skill do?

Use AUTOMATICALLY when developing or modifying code that exists on both macOS (Swift/AppKit) and Windows (C#/WPF), or when creating new cross-platform features. Ensures p — from Pepsi1978/proggs

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 skill?

Use Cross Platform when your Claude Code task falls under the General category — specifically in the general misc 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" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Cross Platform 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 is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/Pepsi1978/proggs/blob/HEAD/claude-code-setup/commands/cross-platform/SKILL.md
Author: Pepsi1978

Cite this skill

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

APA

Pepsi1978. (2026). Cross Platform [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/cross-platform/

BibTeX

@misc{cross-platform-2026,
  author    = {Pepsi1978},
  title     = {Cross Platform [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/cross-platform/}
}

Embed this skill

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Badge

[![ClaudSkills](https://claudskills.com/badge/cross-platform.svg)](https://claudskills.com/skills/cross-platform/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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