iphone-duo-adaptation skillA
iphone-duo-adaptation is agent-read markdown (skill) from sven-ericmolzahn/iphone-duo-skill: 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 ArrangementVi.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns 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
mdr add sven-ericmolzahn/iphone-duo-skill/iphone-duo-adaptation@v1.0.0mdr add sven-ericmolzahn/iphone-duo-skill/iphone-duo-adaptation@sha256:b4409dff9538db0ePin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_g3c5n6v4grhk5oq2)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-09-24 | 1029d2f | 23,977 B | A | view · diff |
| v1.0.0 | 2026-09-23 | 298d1a5 | 23,772 B | A | view · diff |
| v1.0.0 | 2026-09-20 | cbaf568 | 22,773 B | A | view · diff |
| v1.0.0 | 2026-09-20 | ae23a94 | 21,652 B | A | view · diff |
| v1.0.0 | 2026-09-20 | 8e18b7c | 20,298 B | A | view · diff |
| v1.0.0 | 2026-09-20 | 77bf936 | 20,196 B | A | view |
Audit of the latest version
- 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
sven-ericmolzahn/iphone-duo-skill · 11 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
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