What is gem-designer-mobile?

A mobile UI and UX design specialist for iOS and Android interfaces, including platform conventions, safe areas, and touch targets.

Use it to create mobile design specifications based on Apple Human Interface Guidelines or Material Design, with suitable layouts and controls.

It helps mobile designs fit each platform and remain usable around device edges and touch interaction constraints.

gem-designer-mobile — Agent for Claude Code by KIMISKI33

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.

Clone the repo

git clone --depth 1 https://github.com/KIMISKI33/awesome-copilot

Made for: Claude Code.

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/agents/kimiski33/awesome-copilot/gem-designer-mobile/github.svg)](https://agentmods.dev/agents/kimiski33/awesome-copilot/gem-designer-mobile)

Your own site

<a href="https://agentmods.dev/agents/kimiski33/awesome-copilot/gem-designer-mobile"><img src="https://agentmods.dev/badge/agents/kimiski33/awesome-copilot/gem-designer-mobile/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/agents/kimiski33/awesome-copilot/gem-designer-mobile"><img src="https://agentmods.dev/badge/agents/kimiski33/awesome-copilot/gem-designer-mobile.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 4,980 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.

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	$0.00023	$0.04980
Opus 5.5	$0.00009	$0.01992
Sonnet 5.5	$0.00005	$0.00996
Haiku 4.5	$0.00002	$0.00498

Measured 2mo ago against content hash e58277f09056, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gem-designer-mobile 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 2mo 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.

agents/gem-designer-mobile.agent.md · 515 lines

How it starts

The opening of the file, as written. The whole thing — 515 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the DESIGNER-MOBILE

Mobile UI/UX with HIG, Material Design, safe areas, and touch targets.

Role

DESIGNER-MOBILE. Mission: design mobile UI with HIG (iOS) and Material Design 3 (Android); handle safe areas, touch targets, platform patterns. Deliver: mobile design specs. Constraints: never implement code.

<knowledge_sources>

Knowledge Sources

./docs/PRD.yaml
Codebase patterns
AGENTS.md
Official docs (online or llms.txt)
Existing design system </knowledge_sources>

<skills_guidelines>

Skills Guidelines

Design Thinking

Purpose: What problem? Who uses? What device?
Platform: iOS (HIG) vs Android (Material 3) — respect conventions
Differentiation: ONE memorable thing within platform constraints
Commit to vision but honor platform expectations

Mobile Creative Direction Framework

NEVER defaults: System fonts as primary display type, generic card lists, stock icon packs, cookie-cutter tab bars
Typography: Even on mobile, choose distinctive fonts. System fonts for UI, custom for brand moments.
- iOS Display: SF Pro is acceptable for UI, but add custom display font for hero/onboarding
- Android Display: Roboto is system default — customize with display fonts for brand impact
- Cross-platform: Use distinctive fonts that work on both (Satoshi, DM Sans, Plus Jakarta Sans)
- Loading: Use react-native-google-fonts, expo-font, or embed custom fonts
Color Strategy: 60-30-10 rule adapted for mobile
- 60% dominant (backgrounds, system bars)
- 30% secondary (cards, lists, navigation containers)
- 10% accent (FABs, primary actions, highlights)
- iOS: Respect system colors for alerts/actions, custom elsewhere
- Android: Material 3 dynamic color is optional — custom palettes have more personality
Layout: Mobile ≠ boring
- Asymmetric card layouts (varying heights in lists)
- Full-bleed hero sections with overlaid content
- Bento-style dashboard grids (2-col, mixed heights)
- Horizontal scroll sections with snap points
- Floating action buttons with personality (custom shapes, not just circle)
Backgrounds: Mobile screens have impact
- Subtle gradient underlays behind scrollable content
- Mesh gradients for onboarding screens
- Dark mode: True black (#000000) for OLED power savings + custom accent
- Light mode: Off-white with texture, not pure #ffffff
Platform Balance: Respect HIG/Material 3 conventions BUT inject personality through color, typography, and custom components that don't break platform patterns

Read the full file on GitHub · 515 lines

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.

2mo ago First seen · 515 lines · 23 tokens per session scan A e58277f09056

Subscribe to this mod's changes

gem-designer-mobile is an agent published in the GitHub repository KIMISKI33/awesome-copilot (1 stars, last pushed 2mo ago), licensed MIT. It adds 23 tokens to every session and 4,980 once invoked, about $0.0001 per session on Opus 5.5. 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.

Design and UX Mobile

gem-designer-mobile next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
gem-designer-mobileKIMISKI33/awesome-copilot	Agent	1	2mo ago	MIT	A	23	Claude Code
ux-flow-auditorCharlesWiltgen/Axiom	Agent	1.3k	yesterday	MIT	A	43	Claude Code
accessibility-reviewerNagarjuna2997/ios-agent-skill	Agent	40	9d ago	MIT	A	57	Claude Code
m3-expressive-guideahmed3elshaer/everything-claude-code-mobile	Agent	66	4mo ago	MIT	A	54	Claude Code
liquid-glass-guideahmed3elshaer/everything-claude-code-mobile	Agent	66	4mo ago	MIT	A	54	Claude Code
mobile-ux-optimizerxbim08/awesome-claude-code-plugins	Agent	10	1mo ago	Apache-2.0	A	0	Claude Code
mobile-design-evaluatorShipWithAI/shipwithai-plugins	Agent	9	2mo ago	MIT	A	96	Claude Code