claude-skills-jesper

Complete Apple platform development toolkit — iOS, macOS, watchOS, Swift, SwiftUI, StoreKit, ASO, legal, security, testing, and growth. Install for any Apple-platform project.

USE THIS SKILL for any question about Claude API, Claude Code CLI, hooks, plugins, skills, subagents, MCP servers, SDKs, extended thinking, tool use, streaming, or deployment. This skill has complete local documentation — do not use web search, WebFetch, or claude-code-guide instead.

Drop-in DESIGN.md design-system files for 71 popular brands (Claude, Linear, Stripe, Vercel, Apple, Figma, Tesla…). Use when the user wants to match a brand's look and feel, asks to "apply a design system", says "make it look like <brand>", mentions DESIGN.md, or needs design tokens (colors, typography, components) extracted from a known site.

Create interactive HTML learning material that teaches a topic INTUITIVELY (not just informationally) — single-file, animation-rich explainers in the spirit of 3Blue1Brown, Distill.pub, Bartosz Ciechanowski, and Quantum Country. Use when the user wants to LEARN a topic deeply, asks to "teach me X", points at a paper/URL/PDF they want to understand, or wants a self-paced interactive explainer instead of slides. Builds the page, opens it, then tutors the user in conversation about it.

USE THIS SKILL for any question about Google Gemini API — models, function calling, structured output, Live API, embeddings, pricing, or SDKs. This skill has complete local documentation — do not use web search or WebFetch instead.

USE THIS SKILL for NVIDIA topics not covered by the local spark-docs-skill snapshot — community discussion on the NVIDIA developer forum, NVIDIA developer blog posts, and adjacent NVIDIA product docs (CUDA, NeMo, Jetson, Brev, Dynamo, and others listed in the docs.nvidia.com llms.txt catalog). This is a dispatcher skill that routes queries to WebSearch and WebFetch; it does NOT bundle bulk documentation.

USE THIS SKILL for any question about OpenRouter API, model routing, pricing, available AI models, API keys, or provider configuration. This skill has complete local documentation — do not use web search or WebFetch instead.

Strategy guide for Perplexity MCP tools (perplexity_search, perplexity_ask, perplexity_reason, perplexity_research). Helps pick the right tool, craft queries, and use recency/domain filters. Reference when planning complex searches, literature reviews, or multi-step research — not needed for simple one-shot queries.

USE THIS SKILL for any question about NVIDIA DGX Spark hardware, DGX OS 7, system setup, first boot, recovery, dashboard, NGC, containers, or DGX-specific software. This skill has complete local documentation — do not use web search or WebFetch instead.

USE THIS SKILL for any question about Warp terminal — agents, AI features, configuration, keybindings, workflows, or the Warp platform API. This skill has complete local documentation — do not use web search or WebFetch instead.

Comprehensive codebase cleanup across 11 quality dimensions: dead code, duplication, weak types, circular deps, defensive cruft, legacy code, AI slop, type consolidation, security, performance, and async patterns. Analyzes code with confidence scoring and verifies changes with build/test gates. Use when codebase has accumulated tech debt, after major feature work, before releases, or when code quality metrics are declining. Trigger with "/cleanup-code", "clean up the codebase", "remove dead code", "fix code quality".

Code review automation for TypeScript, JavaScript, Python, Go, Swift, Kotlin, C#, .NET, Java, C, C++, Rust, Ruby, PHP, and Dart/Flutter. Analyzes PRs for complexity and risk, checks code quality for SOLID violations and code smells, generates review reports. Use when reviewing pull requests, analyzing code quality, identifying issues, generating review checklists.

Generate compelling App Store descriptions that convert browsers into users. Use when writing initial descriptions, improving existing copy, or drafting promotional text and What's New for a major update.

Apple Search Ads campaign strategy for indie developers — paid acquisition, keyword bidding, budget planning, and ROAS optimization. Use when user asks about running ads, paid user acquisition, or Apple Search Ads campaigns.

Optimize app title, subtitle, and keywords for maximum App Store discoverability. Use when launching a new app, improving search rankings, entering new markets/languages, or safely optimizing ASO for an app with existing traffic.

App Store marketing strategy advisor that analyzes your app and recommends the best promotional features. Orchestrates sub-skills for implementation. Use when planning app promotion, launch strategy, user acquisition, or re-engagement campaigns.

Handle App Store rejections, prepare submissions to avoid common rejection reasons, write Resolution Center responses, and navigate the appeal process. Use when user's app was rejected, is preparing for submission, or needs help with App Review.

Write professional, empathetic responses to App Store reviews that build trust and turn critics into fans. Use when responding to negative reviews, drafting templates for common review types, or improving review management strategy.

Plan compelling App Store screenshot sequences that showcase your app's value. Use when preparing App Store assets, improving screenshot conversion, or drafting screenshot captions for a launch or major update.

App Store optimization and marketing skills for descriptions, screenshots, keywords, review responses, and comprehensive promotional strategy. Use when user needs help with App Store presence, ASO, marketing, or customer communication.

App Intents for Siri, Shortcuts, Spotlight, and Apple Intelligence integration including intent modes, interactive snippets, visual intelligence, and entity indexing. Use when implementing Siri integration, App Shortcuts, or Spotlight indexing.

On-device LLM integration using Apple's Foundation Models framework. Use when implementing AI text generation, structured output, or tool calling.

Apple Intelligence skills for on-device AI features including Foundation Models, Visual Intelligence, App Intents, and intelligent assistants. Use when implementing AI-powered features.

Integrate your app with iOS Visual Intelligence for camera-based search and object recognition. Use when adding visual search capabilities.

USE THIS SKILL to design and generate high-converting App Store screenshots — Benefit Discovery → Screenshot Pairing → Two-stage AI Generation (deterministic compose + Nano Banana Pro enhance) → exact App Store Connect dimensions. Persists progress to memory across sessions.

USE THIS SKILL to build cinematic, animated SwiftUI onboarding flows for iOS apps — multi-step structure with smooth fade/scale transitions, animated progress bar, rotating testimonials, hero header/footer images, and modern async/await timing patterns. Adapts the proven 3-step Adam Lyttle reference implementation to any app's domain.

Core ML, Create ML, Vision framework, Natural Language framework, on-device ML integration. Use when user wants image classification, text analysis, object detection, sound classification, model optimization, or custom model integration. Covers Core ML vs Foundation Models decision.

SwiftUI animation patterns including springs, transitions, PhaseAnimator, KeyframeAnimator, and SF Symbol effects. Use when implementing, reviewing, or fixing animation code on iOS/macOS.

Implement Liquid Glass design using .glassEffect() API for iOS/macOS 26+. Covers SwiftUI, AppKit, UIKit, and WidgetKit. Use when creating modern glass-based UI effects.

Design system skills for modern Apple platform UI including Liquid Glass, animations, and visual design patterns. Use when implementing new design language features.

Generate accessibility infrastructure for VoiceOver, Dynamic Type, and accessibility features. Use when improving app accessibility, adding accessibility labels and hints, or auditing compliance.

Generates an Apple-compliant account deletion flow with multi-step confirmation UI, optional data export, configurable grace period, Keychain cleanup, and server-side deletion request. Use when user needs account deletion, right-to-delete, or Apple App Review compliance for account removal.

Generates protocol-based analytics infrastructure with swappable providers (TelemetryDeck, Firebase, Mixpanel). Use when user wants to add analytics, track events, or set up telemetry.

Generates an in-app announcement banner system with remote configuration, scheduling, deep link actions, and dismiss tracking. Use when user wants in-app banners, promotional notices, maintenance alerts, or contextual announcements.

Generates App Clip targets with invocation URL handling, lightweight experiences, and full app upgrade prompts. Use when user wants NFC/QR/Safari banner invocation, instant app experiences, or App Clip Card setup.

Generates app extension infrastructure for Share Extensions, Action Extensions, Keyboard Extensions, and Safari Web Extensions with data sharing via App Groups. Use when user wants to add a share extension, action extension, keyboard extension, Safari web extension, or any app extension type.

Generates app icons programmatically using CoreGraphics following Apple HIG. Use when user wants to create, generate, or design an app icon for macOS or iOS.

Comprehensive App Store asset specifications and guidelines for all promotional artwork — app icons, screenshots, app previews, event cards, subscription images, and featuring artwork. Use when preparing assets for App Store Connect upload.

Generates authentication infrastructure with Sign in with Apple, biometrics, and Keychain storage. Use when user wants to add authentication, login, or Sign in with Apple.

Generates background processing infrastructure with BGTaskScheduler, background refresh, background downloads, and silent push handling. Use when user needs background tasks, periodic refresh, background URLSession downloads, or silent push notification processing.