Home / artemnovichkov / xcode-skills · skills/app-resizability/SKILL.md · GitHub

app-resizability skillA

app-resizability is agent-read markdown (skill) from artemnovichkov/xcode-skills: Use when an app's layout must adapt to a window that changes size while the app runs, or when an app must support more than one window. That includes being asked to make an app resizable or support a resizable window, a layout that breaks or does not adapt as the window resizes, and preparing or optimizing an app for the foldable iPhone Duo, split-screen multitasking, or Stage Manager. Modernizes the app by replacing legacy shared-state APIs with context-appropriate alternatives: mainScreen, int.

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

# App Resizability Skill

## When to Use

Use this skill whenever the request is about any of the following, whether or not it names an API:

- Getting an app ready for, or optimizing it for, the foldable iPhone Duo.
- An app that must adapt when its window changes size while it runs.
- Split-screen multitasking, Stage Manager, or a resizable scene.
- Any deprecated API named in the Scope section below.

The request does not have to be technical. "Get my app ready for the iPhone Duo", "optimize this app for the foldable iPhone", and "make this app resize properly" all activate this skill. iPhone Duo is the foldable iPhone, so treat questions about iPhone Duo or the foldable iPhone as the same request. Treat a request about the foldable iPhone Duo as a request for every task in the Task Registry, because a screen that changes size exposes all of them at once.

## Purpose

Modernize UIKit apps to behave correctly on modern iOS by:
- Eliminating references to legacy shared-state APIs
- Migrating from application lifecycle to scene lifecycle
- Supporting dynamic scene sizing and multi-window environments

## Scope
…

Read the whole file at its exact version.

How to install

Latest version
mdr add artemnovichkov/xcode-skills/app-resizability@git:20260918.42b9dd3
Exact content
mdr add artemnovichkov/xcode-skills/app-resizability@sha256:1b16afdc3702c1ab

Pin 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.

Badge

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Versions

versioncommittedcommitsizeaudit
git:20260918.42b9dd3 latest2026-09-18 42b9dd3 19,267 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (19267 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

artemnovichkov/xcode-skills · 26 stars · license none · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xopx5x7tyybnbytb
GET https://markdownregistry.com/api/v1/resolve?ref=artemnovichkov/xcode-skills/app-resizability
GET https://markdownregistry.com/api/v1/blob/1b16afdc3702c1ab843ff8ca5c629d7fc2aaf01079852336cb150b4fe16cfdf2

Your agent 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.

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