Hig Project Context
raintree-technology/hig-doctor
Create or update a shared Apple design context document that other HIG skills use to tailor guidance.
iOS application development guide covering UIKit, SnapKit, and SwiftUI.
Install iOS Application Dev
$ npx skills add HHU3637kr/skills --skill ios-application-dev -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install HHU3637kr/skills ios-application-dev --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/HHU3637kr/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ios-application-dev .claude/skills/ios-application-dev && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "ios-application-dev" agent skill from https://github.com/HHU3637kr/skills/tree/master/ios-application-dev into .claude/skills/ios-application-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ios-application-dev", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/HHU3637kr/skills/tree/master/ios-application-devType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add HHU3637kr/skills --skill ios-application-dev -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install HHU3637kr/skills ios-application-dev --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HHU3637kr/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/ios-application-dev .agents/skills/ios-application-dev && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ios-application-dev" agent skill from https://github.com/HHU3637kr/skills/tree/master/ios-application-dev into .agents/skills/ios-application-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ios-application-dev", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add HHU3637kr/skills --skill ios-application-dev -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install HHU3637kr/skills ios-application-dev --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HHU3637kr/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/ios-application-dev .cursor/skills/ios-application-dev && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "ios-application-dev" agent skill from https://github.com/HHU3637kr/skills/tree/master/ios-application-dev into .cursor/skills/ios-application-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ios-application-dev", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/HHU3637kr/skills.git --path ios-application-dev--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add HHU3637kr/skills --skill ios-application-dev -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install HHU3637kr/skills ios-application-dev --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HHU3637kr/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/ios-application-dev .gemini/skills/ios-application-dev && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "ios-application-dev" agent skill from https://github.com/HHU3637kr/skills/tree/master/ios-application-dev into .gemini/skills/ios-application-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ios-application-dev", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install HHU3637kr/skills ios-application-devInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add HHU3637kr/skills --skill ios-application-dev -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/HHU3637kr/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/ios-application-dev .github/skills/ios-application-dev && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "ios-application-dev" agent skill from https://github.com/HHU3637kr/skills/tree/master/ios-application-dev into .github/skills/ios-application-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ios-application-dev", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add HHU3637kr/skills --skill ios-application-dev -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install HHU3637kr/skills ios-application-dev --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HHU3637kr/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/ios-application-dev .opencode/skills/ios-application-dev && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "ios-application-dev" agent skill from https://github.com/HHU3637kr/skills/tree/master/ios-application-dev into .opencode/skills/ios-application-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ios-application-dev", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
ios-application-dev- GitHub stars
- 145
- Used in
- 2 other repos
- Token cost
- ~1.8k tokens
- SKILL.md length
- 619 words
- Files
- 10 (incl. references)
- Skills in repo
- 37
- Repo updated
- First seen
- Licence
- MIT
At a glance
iOS application development guide covering UIKit, SnapKit, and SwiftUI.
- : developing iOS apps
- SKILL.md covers Quick Reference, Core Principles, Checklist and References
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Implementing UI
What it does
iOS Application Dev is an agent skill from HHU3637kr/skills. iOS application development guide covering UIKit, SnapKit, and SwiftUI. Includes touch targets, safe areas, navigation patterns, Dynamic Type, Dark Mode, accessibility, collection views, common UI components, and SwiftUI design guidelines. For detailed references on specific topics, see the reference files. Use when: developing iOS apps, implementing UI, reviewing iOS code, working with UIKit/SnapKit/SwiftUI layouts, building iPhone interfaces, Swift mobile development, Apple HIG compliance, iOS accessibility…
Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including reference files (for example `references/accessibility.md`, `references/graphics-animation.md` and `references/layout-system.md`).
It sits in Mobile, covering iOS development. It works with iOS and SwiftUI. The licence is MIT.
When your agent uses it
- : developing iOS apps
- Implementing UI
- Reviewing iOS code
- Working with UIKit/SnapKit/SwiftUI layouts
Example prompts
- “/ios-application-dev”
What it can do on your machine
Read from SKILL.md and the folder at commit a2cccf6. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
iOS Application Dev loads about 1.8k tokens when it runs, and up to ~27k if it reads all its reference files. Until then it costs about 138 tokens; SKILL.md has 619 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from HHU3637kr/skills at commit a2cccf6, republished under its MIT licence (© HHU3637kr). 619 words, ~1,810 tokens.
Download SKILL.mdSave it as
.claude/skills/ios-application-dev/SKILL.md (or your agent's skills folder). This skill also uses 9 other files; get the full folder from GitHub.- name
- ios-application-dev
- description
- iOS application development guide covering UIKit, SnapKit, and SwiftUI. Includes touch targets, safe areas, navigation patterns, Dynamic Type, Dark Mode, accessibility, collection views, common UI components, and SwiftUI design guidelines. For detailed references on specific topics, see the reference files. Use when: developing iOS apps, implementing UI, reviewing iOS code, working with UIKit/SnapKit/SwiftUI layouts, building iPhone interfaces, Swift mobile development, Apple HIG compliance, iOS accessibility implementation.
- disable-model-invocation
- true
- license
- MIT
- metadata.author
- MiniMax-OpenSource
- metadata.version
- 1.0.0
- metadata.category
- mobile
- metadata.sources
- Apple Human Interface Guidelines, Apple Developer Documentation
iOS Application Development Guide
A practical guide for building iOS applications using UIKit, SnapKit, and SwiftUI. Focuses on proven patterns and Apple platform conventions.
Quick Reference
UIKit
| Purpose | Component |
|---|---|
| Main sections | UITabBarController |
| Drill-down | UINavigationController |
| Focused task | Sheet presentation |
| Critical choice | UIAlertController |
| Secondary actions | UIContextMenuInteraction |
| List content | UICollectionView + DiffableDataSource |
| Sectioned list | DiffableDataSource + headerMode |
| Grid layout | UICollectionViewCompositionalLayout |
| Search | UISearchController |
| Share | UIActivityViewController |
| Location (once) | CLLocationButton |
| Feedback | UIImpactFeedbackGenerator |
| Linear layout | UIStackView |
| Custom shapes | CAShapeLayer + UIBezierPath |
| Gradients | CAGradientLayer |
| Modern buttons | UIButton.Configuration |
| Dynamic text | UIFontMetrics + preferredFont |
| Dark mode | Semantic colors (.systemBackground, .label) |
| Permissions | Contextual request + AVCaptureDevice |
| Lifecycle | UIApplication notifications |
SwiftUI
| Purpose | Component |
|---|---|
| Main sections | TabView + tabItem |
| Drill-down | NavigationStack + NavigationPath |
| Focused task | .sheet + presentationDetents |
| Critical choice | .alert |
| Secondary actions | .contextMenu |
| List content | List + .insetGrouped |
| Search | .searchable |
| Share | ShareLink |
| Location (once) | LocationButton |
| Feedback | UIImpactFeedbackGenerator |
| Progress (known) | ProgressView(value:total:) |
| Progress (unknown) | ProgressView() |
| Dynamic text | .font(.body) semantic styles |
| Dark mode | .primary, .secondary, Color(.systemBackground) |
| Scene lifecycle | @Environment(\.scenePhase) |
| Reduce motion | @Environment(\.accessibilityReduceMotion) |
| Dynamic type | @Environment(\.dynamicTypeSize) |
Core Principles
Layout
- Touch targets >= 44pt
- Content within safe areas (SwiftUI respects by default, use
.ignoresSafeArea()only for backgrounds) - Use 8pt spacing increments (8, 16, 24, 32, 40, 48)
- Primary actions in thumb zone
- Support all screen sizes (iPhone SE 375pt to Pro Max 430pt)
Typography
- UIKit:
preferredFont(forTextStyle:)+adjustsFontForContentSizeCategory = true - SwiftUI: semantic text styles
.headline,.body,.caption - Custom fonts:
UIFontMetrics/Font.custom(_:size:relativeTo:) - Adapt layout at accessibility sizes (minimum 11pt)
Colors
- Use semantic system colors (
.systemBackground,.label,.primary,.secondary) - Asset catalog variants for custom colors (Any/Dark Appearance)
- No color-only information (pair with icons or text)
- Contrast ratio >= 4.5:1 for normal text, 3:1 for large text
Accessibility
- Labels on icon buttons (
.accessibilityLabel()) - Reduce motion respected (
@Environment(\.accessibilityReduceMotion)) - Logical reading order (
.accessibilitySortPriority()) - Support Bold Text, Increase Contrast preferences
Navigation
- Tab bar (3-5 sections) stays visible during navigation
- Back swipe works (never override system gestures)
- State preserved across tabs (
@SceneStorage,@State) - Never use hamburger menus
Privacy & Permissions
- Request permissions in context (not at launch)
- Custom explanation before system dialog
- Support Sign in with Apple
- Respect ATT denial
Checklist
Layout
- Touch targets >= 44pt
- Content within safe areas
- Primary actions in thumb zone (bottom half)
- Flexible widths for all screen sizes (SE to Pro Max)
- Spacing aligns to 8pt grid
Typography
- Semantic text styles or UIFontMetrics-scaled custom fonts
- Dynamic Type supported up to accessibility sizes
- Layouts reflow at large sizes (no truncation)
- Minimum text size 11pt
Show full SKILL.md (240 more words)Show less
Colors
- Semantic system colors or light/dark asset variants
- Dark Mode is intentional (not just inverted)
- No color-only information
- Text contrast >= 4.5:1 (normal) / 3:1 (large)
- Single accent color for interactive elements
Accessibility
- VoiceOver labels on all interactive elements
- Logical reading order
- Bold Text preference respected
- Reduce Motion disables decorative animations
- All gestures have alternative access paths
Navigation
- Tab bar for 3-5 top-level sections
- No hamburger/drawer menus
- Tab bar stays visible during navigation
- Back swipe works throughout
- State preserved across tabs
Components
- Alerts for critical decisions only
- Sheets have dismiss path (button and/or swipe)
- List rows >= 44pt tall
- Destructive buttons use
.destructiverole
Privacy
- Permissions requested in context (not at launch)
- Custom explanation before system permission dialog
- Sign in with Apple offered with other providers
- Basic features usable without account
- ATT prompt shown if tracking, denial respected
System Integration
- App handles interruptions gracefully (calls, background, Siri)
- App content indexed for Spotlight
- Share Sheet available for shareable content
References
| Topic | Reference |
|---|---|
| Touch Targets, Safe Area, CollectionView | Layout System |
| TabBar, NavigationController, Modal | Navigation Patterns |
| StackView, Button, Alert, Search, ContextMenu | UIKit Components |
| CAShapeLayer, CAGradientLayer, Core Animation | Graphics & Animation |
| Dynamic Type, Semantic Colors, VoiceOver | Accessibility |
| Permissions, Location, Share, Lifecycle, Haptics | System Integration |
| Metal Shaders & GPU | Metal Shader Reference |
| SwiftUI HIG, Components, Patterns, Anti-Patterns | SwiftUI Design Guidelines |
| Optionals, Protocols, async/await, ARC, Error Handling | Swift Coding Standards |
Swift, SwiftUI, UIKit, SF Symbols, Metal, and Apple are trademarks of Apple Inc. SnapKit is a trademark of its respective owners.
© HHU3637kr, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 9 other files (references) in ios-application-dev of HHU3637kr/skills.
- SKILL.md
- references/accessibility.md
- references/graphics-animation.md
- references/layout-system.md
- references/metal-shader.md
- references/navigation-patterns.md
- references/swift-coding-standards.md
- references/swiftui-design-guidelines.md
- references/system-integration.md
- references/uikit-components.md
Open the folder on GitHubat commit a2cccf6
Used in 2 other repositories
We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in HHU3637kr/skills, which our catalogue first saw on October 7, 2026.
Compare with similar skills
iOS Application Dev next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| iOS Application Dev this skillHHU3637kr/skills | 145 | 2 repos | ~1.8k | Automated safety check: Pass | MIT | |
| Hig Project Contextraintree-technology/hig-doctor | 142 | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Hig Components Contentraintree-technology/hig-doctor | 142 | 5 repos | ~1.3k | Automated safety check: Pass | MIT | |
| iOS Design Guidelinesehmo/platform-design-skills | 605 | — | ~9k | Automated safety check: Pass | MIT | |
| Aipay Frontend ThemeOpenAIPay/openaipay | 129 | — | ~386 | Automated safety check: Pass | None | |
| iOS Accessibilitydpearson2699/swift-ios-skills | 1.2k | — | ~4.6k | Automated safety check: Pass | Custom licence |
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Related
Categories
Questions about iOS Application Dev
What does iOS Application Dev do?
iOS application development guide covering UIKit, SnapKit, and SwiftUI. iOS Application Dev is an agent skill from HHU3637kr/skills. iOS application development guide covering UIKit, SnapKit, and SwiftUI.
When should I use iOS Application Dev?
iOS Application Dev fits situations like: : developing iOS apps; implementing UI; reviewing iOS code; working with UIKit/SnapKit/SwiftUI layouts.
How do I install iOS Application Dev in Claude Code?
Run `npx skills add HHU3637kr/skills --skill ios-application-dev -a claude-code`. Or copy the skill folder (ios-application-dev in HHU3637kr/skills) into .claude/skills/ios-application-dev in your project. Claude Code loads it when a task matches its description.
How do I install iOS Application Dev in Codex?
Run `npx skills add HHU3637kr/skills --skill ios-application-dev -a codex`. Or copy the skill folder (ios-application-dev in HHU3637kr/skills) into .agents/skills/ios-application-dev in your project. Codex loads it when a task matches its description.
Can I use iOS Application Dev in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HHU3637kr/skills --skill ios-application-dev -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ios-application-dev, .gemini/skills/ios-application-dev, .github/skills/ios-application-dev and .opencode/skills/ios-application-dev in your project.
What does iOS Application Dev need to run?
SKILL.md names no scripts, command-line tools or credentials: iOS Application Dev is instructions for the agent only.
Does iOS Application Dev access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is iOS Application Dev safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does iOS Application Dev use?
iOS Application Dev is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does iOS Application Dev use?
About 1.8k tokens (SKILL.md is roughly 7.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 25k tokens, read only when the agent opens those files.
What are the alternatives to iOS Application Dev?
Skills that share tags, products or a category with iOS Application Dev: Hig Project Context (raintree-technology/hig-doctor, 142 stars), Hig Components Content (raintree-technology/hig-doctor, 142 stars), iOS Design Guidelines (ehmo/platform-design-skills, 605 stars) and Aipay Frontend Theme (OpenAIPay/openaipay, 129 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains iOS Application Dev?
HHU3637kr (a GitHub user) maintains it in HHU3637kr/skills, which has 145 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on September 23, 2026.
Source: HHU3637kr/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.