A guide to building new iOS app screens with SwiftUI, Apple's framework for declaring interface layouts in Swift. It combines interface design principles with rules for keeping screens compatible with a modular app structure.

Use it when implementing new SwiftUI views, screens, layouts, interactions, animations, and production-ready feature interfaces.

It helps developers create polished, consistent screens without mixing feature code with storage, networking, or unrelated modules.

ios-design — Skill for Claude Code and Codex by pproenca

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add pproenca/dot-skills --skill ios-design

Clone the repo

git clone --depth 1 https://github.com/pproenca/dot-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/pproenca/dot-skills/ios-design/github.svg)](https://agentmods.dev/skills/pproenca/dot-skills/ios-design)

Your own site

<a href="https://agentmods.dev/skills/pproenca/dot-skills/ios-design"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/ios-design/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/pproenca/dot-skills/ios-design"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/ios-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,884 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

Socket pass 15 May 2026
Snyk pass 15 May 2026
NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00066	$0.02884
Opus 5	$0.00033	$0.01442
Sonnet 5	$0.00013	$0.00577
Haiku 4.5	$0.00007	$0.00288

Measured 6d ago against content hash 268092c0b7d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ios-design scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/.experimental/ios-design/SKILL.md · 175 lines

How it starts

The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Apple SwiftUI iOS Design Best Practices

A builder's guide for implementing Apple-quality iOS interfaces in SwiftUI, grounded in two foundational design texts:

Ken Kocienda — Creative Selection (empathy for the user, craft in coding, taste in choosing the best solution, demo culture of iterative refinement)
John Edson — Design Like Apple (systems thinking, the product is the marketing, design out loud, design with conviction)

Contains 62 rules across 8 principle-based categories. Each rule identifies a specific anti-pattern, grounds the fix in a named principle, and provides the correct iOS 26 / Swift 6.2 SwiftUI implementation.

Scope & Relationship to Sibling Skills

This skill is the building and implementation guide — it teaches how to construct new SwiftUI interfaces from scratch using Apple-quality patterns. When loaded alongside ios-ui-refactor (reviewing/refactoring existing UI), this skill covers the greenfield implementation that ios-ui-refactor later audits. Use this skill for building new screens; use the sibling for evaluating and improving existing ones.

Clinic Architecture Contract (iOS 26 / Swift 6.2)

All guidance in this skill assumes the clinic modular MVVM-C architecture:

Feature modules import Domain + DesignSystem only (never Data, never sibling features)
App target is the convergence point and owns DependencyContainer, concrete coordinators, and Route Shell wiring
Domain stays pure Swift and defines models plus repository, *Coordinating, ErrorRouting, and AppError contracts
Data owns SwiftData/network/sync/retry/background I/O and implements Domain protocols
Read/write flow defaults to stale-while-revalidate reads and optimistic queued writes
ViewModels call repository protocols directly (no default use-case/interactor layer)

When to Apply

Reference these guidelines when:

Building new SwiftUI views and screens from scratch
Choosing between semantic colors, system typography, and spacing grids (Edson's Systems Thinking)
Managing state with @State, @Binding, @Observable, @Environment (Kocienda's Craft)
Selecting the right component: List vs LazyVStack, Sheet vs FullScreenCover (Kocienda's Taste)
Composing views with @ViewBuilder, custom modifiers, and value types (Kocienda's Creative Selection)
Implementing navigation with NavigationStack, TabView, sheets (Edson's Conversation)
Laying out content with stacks, grids, frames, and adaptive layouts (Edson's Design Out Loud)
Ensuring VoiceOver, touch targets, Dark Mode, and reduce motion support (Kocienda's Empathy)
Adding transitions, loading states, and animation polish (Edson's Product Is the Marketing)

Read the full file on GitHub · 175 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

6d ago First seen · 175 lines · 66 tokens per session scan A 268092c0b7d0

Subscribe to this mod's changes

ios-design is a skill published in the GitHub repository pproenca/dot-skills (205 stars, last pushed 24d ago), licensed MIT. It adds 66 tokens to every session and 2,884 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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