Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
ClaudSkills / Security / threat-hunting

Foldsmith Duo

Category: Security  ·  Sub-category: threat-hunting  ·  Last updated:
Adapt a whole existing iOS app to iPhone Duo (Apple's foldable, iOS 27.1), hands-free, from one prompt to every screen verified in every pose. Classifies each screen against a measured decision table, applies a named layout pattern, proves every pose with screenshots, and keeps .duo/migration.json current, so the user can follow it (in Claude Code the Foldsmith plugin's pane draws it) and a later session resumes. Use when the user mentions iPhone Duo, foldable iPhone, the fold or crease or hinge, book or laptop pose, vertical toolbars or tab bars, ArrangementView, ReservedRegion, "squeezed when half open", or asks to make an app work on the Duo's inner and outer displays. Also audits an app without changing it, and exports the App Store's iPhone Duo screenshots from its captures.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

iPhone and iPhone Duo are trademarks of Apple Inc. Foldsmith is independent and is not affiliated with, sponsored by, or endorsed by Apple Inc.

What this skill does

Foldsmith Duo is a community-contributed Claude Code skill in the threat-hunting sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/foldsmith-duo/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user mentions iPhone Duo, foldable iPhone, the fold or crease or hinge, book or laptop pose, vertical toolbars or tab bars, ArrangementView, ReservedRegion, "squeezed when half open", or asks to make an app work on the Duo's inner and outer displays. Also audits an app without changing it, and exports the App Store's iPhone Duo screenshots from its captures.

Who uses this skill

The Foldsmith Duo Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 213,000+ 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/foldsmith-duo
curl -L https://claudskills.com/skills/foldsmith-duo/SKILL.md \
  -o ~/.claude/skills/foldsmith-duo/SKILL.md

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

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

Telegram

📱 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 Foldsmith Duo Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/foldsmith-duo/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Foldsmith Duo skill do?
Adapt a whole existing iOS app to iPhone Duo (Apple's foldable, iOS 27.1), hands-free, from one prompt to every screen verified in every pose. Classifies each screen against a measured decision table, applies a named layout pattern, proves every pose with screenshots, and keeps .duo/migration.json current, so the user can follow it (in Claude Code the Foldsmith plugin's pane draws it) and a later session resumes. Use when the user mentions iPhone Duo, foldable iPhone, the fold or crease or hinge, book or laptop pose, vertical toolbars or tab bars, ArrangementView, ReservedRegion, "squeezed when half open", or asks to make an app work on the Duo's inner and outer displays. Also audits an app without changing it, and exports the App Store's iPhone Duo screenshots from its captures.
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 Foldsmith Duo skill?
Use Foldsmith Duo when your Claude Code task falls under the Security category — specifically in the threat hunting 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 Foldsmith Duo" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Foldsmith Duo 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. Foldsmith Duo is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

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

APA
3nchiridion. (2026). Foldsmith Duo [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/foldsmith-duo/
BibTeX
@misc{foldsmith-duo-2026,
  author    = {3nchiridion},
  title     = {Foldsmith Duo [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/foldsmith-duo/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge
[![ClaudSkills](https://claudskills.com/badge/foldsmith-duo.svg)](https://claudskills.com/skills/foldsmith-duo/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/foldsmith-duo.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/foldsmith-duo.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Foldsmith Duo"></iframe>

Security scan

Grade A · scanned 2026-11-01 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/foldsmith-duo/#security)

Free. No spam. Unsubscribe in one click.

More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore

Categories

Use cases

Popular tags

Learn

Site