cf:mobile-development SKILL.md skillA

cf:mobile-development from haposoft/cafekit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add haposoft/cafekit/cf:mobile-development@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
haposoft/cafekit
Path
packages/spec/src/claude/skills/mobile-development/SKILL.md
Versions recorded
5
Latest version
v1.0.0, committed Sep 3, 2026
First version recorded
Apr 11, 2026
Size
9,808 bytes
Repository stars
54
License
none declared

Build mobile apps with React Native, Flutter, Swift/SwiftUI, Kotlin/Jetpack Compose. Use for iOS/Android, mobile UX, performance optimization, offline-first, app store deployment.

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

# Mobile Development Skill

Production-ready mobile development with modern frameworks, best practices, and mobile-first thinking patterns.

## When to Use

- Building mobile applications (iOS, Android, or cross-platform)
- Implementing mobile-first design and UX patterns
- Optimizing for mobile constraints (battery, memory, network, small screens)
- Making native vs cross-platform technology decisions
- Implementing offline-first architecture and data sync
- Following platform-specific guidelines (iOS HIG, Material Design)
- Optimizing mobile app performance and user experience
- Implementing mobile security and authentication
- Testing mobile applications (unit, integration, E2E)
- Deploying to App Store and Google Play

## Technology Selection Guide

**Cross-Platform Frameworks:**
- **React Native**: JavaScript expertise, web code sharing, mature ecosystem
- **Flutter**: Performance-critical apps, complex animations, fastest-growing

**Native Development:**
- **iOS (Swift/SwiftUI)**: Maximum iOS performance, latest features, Apple ecosystem integration
- **Android (Kotlin/Jetpack Compose)**: Maximum Android performance, Material Design 3, platform optimization
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add haposoft/cafekit/cf:mobile-development@sha256:f8cdcec4609f13cd

The line at the top of this page pins the label v1.0.0, 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_x22qcd5wfb3n4hxd.svg)](https://markdownregistry.com/a/art_x22qcd5wfb3n4hxd)

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

Versions

The registry has recorded 5 versions of this file, between Apr 11, 2026 and Sep 3, 2026, about one every 36 days.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-09-03 f55ff96 9,808 BA view · diff
v1.0.02026-08-06 35554bd 9,810 BA view · diff
v1.0.02026-08-05 925e094 9,714 BA view · diff
v1.0.02026-06-03 fab9b6a 9,770 BA view · diff
v1.0.02026-04-11 26ce3bb 9,593 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 (9808 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

haposoft/cafekit · 54 stars · license none declared · pushed 2026-11-05 · branch dev

API

GET https://markdownregistry.com/api/v1/artifacts/art_x22qcd5wfb3n4hxd
GET https://markdownregistry.com/api/v1/resolve?ref=haposoft/cafekit/cf:mobile-development
GET https://markdownregistry.com/api/v1/blob/f8cdcec4609f13cd8065648e629859a3872fdf76fe4a4b7a885d567b310453f7

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 haposoft/cafekit

AGENTS.md AGENTS.md file
haposoft/cafekit · AGENTS.md
git:20261018.54f438e · audit A · 54 stars
CLAUDE.md CLAUDE.md file
haposoft/cafekit · CLAUDE.md
git:20261018.30be9bd · audit B · 54 stars
llms.txt@cafekit-web/src/components/ui llms.txt file
haposoft/cafekit · cafekit-web/src/components/ui/llms.txt
git:20260203.5213074 · audit A · 54 stars
CLAUDE.md@evals/research/fixtures/khong-luu-khong-sua CLAUDE.md file
haposoft/cafekit · evals/research/fixtures/khong-luu-khong-sua/CLAUDE.md
git:20260930.3fa9f43 · audit B · 54 stars
CLAUDE.md@packages/spec/src/claude CLAUDE.md file
haposoft/cafekit · packages/spec/src/claude/CLAUDE.md
git:20261023.a626d73 · audit B · 54 stars
cf:adv SKILL.md skill
haposoft/cafekit · packages/spec/src/claude/skills/adv/SKILL.md · Interview until the user and the agent hold the same picture of the outcome, preview it, then deliver honest…
v1.0.0 · audit A · 54 stars
cf:agent-browser SKILL.md skill
haposoft/cafekit · packages/spec/src/claude/skills/agent-browser/SKILL.md · AI-optimized browser automation CLI with context-efficient snapshots. Use for long autonomous sessions, self-verifying…
v1.0.0 · audit A · 54 stars
cf:ai-multimodal SKILL.md skill
haposoft/cafekit · packages/spec/src/claude/skills/ai-multimodal/SKILL.md · Analyze images/audio/video/documentation with Gemini API. Use for vision analysis, transcription, OCR, design…
v1.0.0 · audit A · 54 stars
cf:ask SKILL.md skill
haposoft/cafekit · packages/spec/src/claude/skills/ask/SKILL.md · Answer questions with evidence. Use when the user asks about project behavior, source code, specs, docs, configuration…
v1.0.0 · audit A · 54 stars
cf:backend-development SKILL.md skill
haposoft/cafekit · packages/spec/src/claude/skills/backend-development/SKILL.md · Build backends with Node.js, Python, Go (NestJS, FastAPI, Django). Use for REST/GraphQL/gRPC APIs, auth (OAuth, JWT)…
v1.0.0 · audit A · 54 stars
cf:brainstorm SKILL.md skill
haposoft/cafekit · packages/spec/src/claude/skills/brainstorm/SKILL.md · Shape an unsettled piece of work into a decided one before anyone builds it. Use when the outcome is already agreed but…
v3.0.0 · audit A · 54 stars
cf:chrome-devtools SKILL.md skill
haposoft/cafekit · packages/spec/src/claude/skills/chrome-devtools/SKILL.md · Automate browsers with Puppeteer CLI scripts and persistent sessions. Use for screenshots, performance analysis…
v1.1.0 · audit B · 54 stars

Every file in haposoft/cafekit

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