app-resizability SKILL.md skillA

app-resizability from artemnovichkov/xcode-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add artemnovichkov/xcode-skills/app-resizability@git:20260918.42b9dd3

Pins git:20260918.42b9dd3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
artemnovichkov/xcode-skills
Path
skills/app-resizability/SKILL.md
Versions recorded
1
Latest version
git:20260918.42b9dd3, committed Sep 18, 2026
Size
19,267 bytes
Repository stars
84
License
none declared

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…

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

# 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

The exact contents, by fingerprint
mdr add artemnovichkov/xcode-skills/app-resizability@sha256:1b16afdc3702c1ab

The line at the top of this page pins the label git:20260918.42b9dd3, 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_xopx5x7tyybnbytb.svg)](https://markdownregistry.com/a/art_xopx5x7tyybnbytb)

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

Versions

The registry has recorded 1 version of this file, committed on Sep 18, 2026.

versioncommittedcommitsizeaudit
git:20260918.42b9dd3 latest2026-09-18 42b9dd3 19,267 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 (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 · 84 stars · license none declared · pushed 2026-11-03 · 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 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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Every file in artemnovichkov/xcode-skills

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