iphone-duo-adaptation SKILL.md skillA

iphone-duo-adaptation from sven-ericmolzahn/iphone-duo-skill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sven-ericmolzahn/iphone-duo-skill/iphone-duo-adaptation@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sven-ericmolzahn/iphone-duo-skill
Path
skills/iphone-duo-adaptation/SKILL.md
Versions recorded
6
Latest version
v1.0.0, committed Sep 24, 2026
First version recorded
Sep 20, 2026
Size
23,977 bytes
Repository stars
18
License
MIT

Adapt iOS apps (SwiftUI and UIKit) for iPhone Duo, Apple's folding iPhone: two displays, a hinge, toolbars and tab bars that move to the side, reserved regions, and the iOS 27.1 layout APIs (ArrangementView, UIArrangementViewController, reservedRegions, onHingeChange, axisBehavior, toolbarVerticalBehavior). Use this skill whenever the user mentions iPhone Duo, a foldable or folding iPhone, the hinge or fold, book or laptop pose, inner or outer display, Device Hub, vertical bars, or…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Adapting an app for iPhone Duo

iPhone Duo is Apple's folding iPhone: a compact outer display, a large inner display, a hinge between the halves, and a front camera on each side. Three consequences break real apps:

1. **The screen got wide and short.** A layout that centres a phone-width column — or stretches one — ends up with dead paper or 600-point-wide controls.
2. **The bars moved to the side.** Status bar, Dynamic Island, toolbar and tab bar share one *vertical bar* on the outer display and on the inner display in landscape. Safe areas become asymmetric.
3. **The display folds while the app is running.** A 40-point hinge band becomes a reserved region and the layout must re-flow live, with no scene-phase change to hang it on.

Apple's position is the spine of this skill: **adapt to size classes and container size — never to the device, the pose, or the orientation.** An app that already resizes well gets most of this for free. The skill is about the part that isn't free.

## Ground truth first
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sven-ericmolzahn/iphone-duo-skill/iphone-duo-adaptation@sha256:b4409dff9538db0e

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_g3c5n6v4grhk5oq2.svg)](https://markdownregistry.com/a/art_g3c5n6v4grhk5oq2)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between Sep 20, 2026 and Sep 24, 2026, more than one a day.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-09-24 1029d2f 23,977 BA view · diff
v1.0.02026-09-23 298d1a5 23,772 BA view · diff
v1.0.02026-09-20 cbaf568 22,773 BA view · diff
v1.0.02026-09-20 ae23a94 21,652 BA view · diff
v1.0.02026-09-20 8e18b7c 20,298 BA view · diff
v1.0.02026-09-20 77bf936 20,196 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (23977 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

sven-ericmolzahn/iphone-duo-skill · 18 stars · license MIT · pushed 2026-09-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_g3c5n6v4grhk5oq2
GET https://markdownregistry.com/api/v1/resolve?ref=sven-ericmolzahn/iphone-duo-skill/iphone-duo-adaptation
GET https://markdownregistry.com/api/v1/blob/b4409dff9538db0eae5428cabdf30f6b18eadd2957d2fb562d7c85215d2ee599

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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