uikit-app-modernization SKILL.md skillA

uikit-app-modernization from tartinerlabs/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add tartinerlabs/skills/uikit-app-modernization@git:20260713.ba4f7f8

Pins git:20260713.ba4f7f8 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
tartinerlabs/skills
Path
xcode-skills/uikit-app-modernization/SKILL.md
Versions recorded
1
Latest version
git:20260713.ba4f7f8, committed Jul 13, 2026
Size
16,448 bytes
Repository stars
8
License
MIT

Modernizes UIKit apps for multi-window environments by replacing legacy shared-state APIs with context-appropriate modern alternatives. This includes references to mainScreen, interfaceOrientation, application and scene lifecycle, as well as safe area inset updates.

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

# UIKit App Modernization Skill

## 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

This skill performs **specific, targeted modernizations** in both **Swift and Objective-C** codebases:
- Replace legacy shared-state APIs with context-appropriate modern APIs
- Migrate to scene-based lifecycle
- Update apps to support a resizable user interface by removing usage of:
  - main screen (`UIScreen.mainScreen`, `UIScreen.main`)
  - interface orientation (`interfaceOrientation`)
  - assumptions of symmetric safe areas (`safeAreaLayoutGuide`, `safeAreaInsets`)

## Core Principles

1. **Closest to consumer** — Prefer information nearest the point of use (e.g., view's trait collection over window's).
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add tartinerlabs/skills/uikit-app-modernization@sha256:3eaffffb97461381

The line at the top of this page pins the label git:20260713.ba4f7f8, 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_tg4qem7qypzdn2lo.svg)](https://markdownregistry.com/a/art_tg4qem7qypzdn2lo)

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

Versions

The registry has recorded 1 version of this file, committed on Jul 13, 2026.

versioncommittedcommitsizeaudit
git:20260713.ba4f7f8 latest2026-07-13 ba4f7f8 16,448 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 (16448 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

tartinerlabs/skills · 8 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_tg4qem7qypzdn2lo
GET https://markdownregistry.com/api/v1/resolve?ref=tartinerlabs/skills/uikit-app-modernization
GET https://markdownregistry.com/api/v1/blob/3eaffffb97461381f298b23e31195ec135383b444cf98ccfe1313144718d91e0

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.

More from tartinerlabs/skills

AGENTS.md AGENTS.md file
tartinerlabs/skills · AGENTS.md
git:20261031.b555c83 · audit A · 8 stars
accessibility SKILL.md skill
tartinerlabs/skills · plugins/design/skills/accessibility/SKILL.md · Use when building or reviewing UI for accessibility — screen readers (VoiceOver, TalkBack), keyboard and focus, colour…
git:20261017.0f05021 · audit A · 8 stars
apple-featuring SKILL.md skill
tartinerlabs/skills · plugins/design/skills/apple-featuring/SKILL.md · Use when preparing an Apple platform app for App Store featuring or the Apple Design Awards — readiness reviews before…
git:20261017.94810f7 · audit A · 8 stars
ux-psychology SKILL.md skill
tartinerlabs/skills · plugins/design/skills/ux-psychology/SKILL.md · Use when designing, building, or reviewing a screen, flow, or page — landing and marketing pages, onboarding, sign-up…
git:20261031.2b5cd95 · audit A · 8 stars
visual-design SKILL.md skill
tartinerlabs/skills · plugins/design/skills/visual-design/SKILL.md · Use when choosing or reviewing how a screen, flow, or page looks — colour palette, typography, spacing, cards and…
git:20261101.4bdfacf · audit A · 8 stars
i18n SKILL.md skill
tartinerlabs/skills · plugins/quality/skills/i18n/SKILL.md · Use when internationalising or localising an app, preparing it for translation, extracting hardcoded strings, adding…
git:20261018.ca0b241 · audit A · 8 stars
naming-format SKILL.md skill
tartinerlabs/skills · plugins/quality/skills/naming-format/SKILL.md · Use when reviewing file names, renaming files, fixing naming conventions, or auditing exports. Enforces consistent…
git:20261007.6a855c7 · audit A · 8 stars
project-structure SKILL.md skill
tartinerlabs/skills · plugins/quality/skills/project-structure/SKILL.md · Use when deciding where code should live, organising files, or auditing project structure. Checks colocation, grouping…
git:20261007.6a855c7 · audit A · 8 stars
refactor SKILL.md skill
tartinerlabs/skills · plugins/quality/skills/refactor/SKILL.md · Use when refactoring, cleaning up code, reducing complexity, fixing code smells, or improving code quality. Audits code…
git:20261007.6a855c7 · audit A · 8 stars
deps SKILL.md skill
tartinerlabs/skills · plugins/security/skills/deps/SKILL.md · Use when hardening a dependency supply chain, pinning versions, adding registry/security flags, or setting up Renovate…
git:20261017.0f1c3d3 · audit A · 8 stars
security SKILL.md skill
tartinerlabs/skills · plugins/security/skills/security/SKILL.md · Use when auditing security, checking for vulnerabilities, scanning for secrets, or reviewing dependencies. Dependency…
git:20261007.6a855c7 · audit A · 8 stars
setup SKILL.md skill
tartinerlabs/skills · plugins/tooling/skills/setup/SKILL.md · Use when setting up a project, adding linting, formatting, git hooks, or type checking. Detects the language and…
git:20261017.0f1c3d3 · audit A · 8 stars

Every file in tartinerlabs/skills

Browse by kind, by grade A, or by owner.