mobile-app skill
A mobile-app screen rendered inside a pixel-accurate iPhone 15 Pro frame on the page. Built by copying the seed `assets/template.html` and pasting one screen archetype from `references/layouts.md`. Use when the brief asks for "mobile app", "iOS app", "Android app", "phone screen", or "app UI".
Is the mobile-app skill safe?
Clean: nothing in its files matched our rules. We read 5 files in the folder on 2026-09-28.
No findings.
Install the mobile-app skill
A skill is a folder. Copy it into your agent's skills folder and the agent loads it when the task matches its description.
git clone --depth 1 https://github.com/nexu-io/open-design.git /tmp/open-design mkdir -p ~/.claude/skills cp -r /tmp/open-design/design-templates/mobile-app ~/.claude/skills/mobile-app
In the Claude apps, zip the folder and upload it from the Skills settings. The folder on GitHub
The instructions your agent would load
SKILL.md as published, without the frontmatter. Read it on GitHub
Mobile App Skill
Produce a single mobile-app screen mockup, framed inside a real-feeling iPhone 15 Pro device.
Resource map
mobile-app/
├── SKILL.md ← you're reading this
├── assets/
│ └── template.html ← seed: device frame + screen primitives (READ FIRST)
└── references/
├── layouts.md ← 6 screen archetypes (Feed / Detail / Onboarding / Profile / Checkout / Focus)
└── checklist.md ← P0/P1/P2 self-review (anti-fake-device)Workflow
Step 0 — Pre-flight
- Read assets/template.html end-to-end through the block. The Dynamic Island, status bar SVG icons, home indicator, side rails, and tab bar are all already drawn in HTML/SVG — do not re-implement them inline on each screen.
- Read references/layouts.md so you know which 6 archetypes exist.
- Read the active DESIGN.md — map its tokens to the six :root variables in the seed.
Step 1 — Copy the seed
Copy assets/template.html to the project root as index.html. Replace the six :root variables with the active design system's tokens. Replace the page and the caption above the device.
Step 2 — Pick exactly one archetype
A mobile screen does one job. If the brief seems to combine two, ship one screen and offer the other as a follow-up.
Step 3 — Paste and fill
Copy the archetype block from layouts.md into , replacing the placeholder card. Fill bracketed text with real, specific copy from the brief. Drop the block entirely for archetypes that don't show one (B, C, E).
Step 4 — Self-check
Run through references/checklist.md. Pay extra attention to:
- Frame still has the Dynamic Island, status bar SVGs, and home indicator
- Tap targets ≥ 44px
- One accent, used ≤ 2× on the screen
- Display headings still use var(--font-display) (serif)
Step 5 — Emit the artifact
<artifact identifier="mobile-slug" type="text/html" title="Mobile — Screen Name">
<!doctype html>
<html>...</html>
</artifact>One sentence before describing what's there. Stop after .
Hard rules
- The phone is real. Dynamic Island gap, SVG status icons, home indicator. The seed protects all three — don't rewrite the frame.
- Single screen, single job. No multi-tab tours, no spliced flows.
- Accent budget = 2. One active tab + one primary action is the default.
- Numerics in mono via .num class.
- Display in serif via var(--font-display).
- No external images — use .ph-img placeholders.
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