Claude Skills

Expert error handling decisions for iOS/tvOS: when to use throws vs Result, error type design trade-offs, recovery strategy selection, and user-facing error presentation patterns. Use when designing error hierarchies, implementing retry logic, or deciding how to surface errors to users. Trigger keywords: Error, throws, Result, LocalizedError, retry, recovery, error presentation, do-catch, try, error handling, failure

Expert localization decisions for iOS/tvOS: when runtime language switching is needed vs system handling, pluralization rule complexity by language, RTL layout strategies, and string key architecture. Use when internationalizing apps, handling RTL languages, or debugging localization issues. Trigger keywords: localization, i18n, l10n, NSLocalizedString, Localizable.strings, stringsdict, plurals, RTL, Arabic, Hebrew, SwiftGen, language switching

Expert model design decisions for iOS/tvOS: when DTO separation adds value vs overkill, validation strategy selection, immutability trade-offs, and custom Codable decoder design. Use when designing data models, implementing API contracts, or debugging decoding failures. Trigger keywords: Codable, DTO, domain model, CodingKeys, custom decoder, validation, immutable, struct, mapping, JSON decoding

Expert performance decisions for iOS/tvOS: when to optimize vs premature optimization, profiling tool selection, SwiftUI view identity trade-offs, and memory management strategies. Use when debugging performance issues, optimizing slow screens, or reducing memory usage. Trigger keywords: performance, Instruments, Time Profiler, Allocations, memory leak, view identity, lazy loading, @StateObject, retain cycle, image caching, faulting, batch operations

Expert notification decisions for iOS/tvOS: when to request permission, silent vs visible notification trade-offs, rich notification strategies, and APNs architecture choices. Use when implementing push notifications, debugging delivery issues, or designing notification UX. Trigger keywords: push notification, UNUserNotificationCenter, APNs, device token, silent notification, content-available, mutable-content, notification extension, notification actions, badge

Expert security decisions for iOS/tvOS: when Keychain vs UserDefaults, certificate pinning trade-offs, API key protection strategies, and secure data lifecycle management. Use when storing sensitive data, implementing authentication, or hardening app security. Trigger keywords: Keychain, security, certificate pinning, encryption, API key, token storage, secure storage, biometric, jailbreak, data protection

Expert Swift decisions Claude doesn't instinctively make: struct vs class trade-offs, @MainActor placement, async/await vs Combine selection, memory management pitfalls, and iOS-specific anti-patterns. Use when writing Swift code for iOS/tvOS apps, reviewing Swift architecture decisions, or debugging memory/concurrency issues. Trigger keywords: Swift, iOS, tvOS, actor, async, Sendable, retain cycle, memory leak, struct, class, protocol, generic

Expert SwiftGen decisions for iOS/tvOS: when type-safe assets add value, template selection trade-offs, organization strategies, and build phase configuration. Use when setting up SwiftGen, choosing templates, or debugging generation issues. Trigger keywords: SwiftGen, type-safe, Asset, L10n, ImageAsset, ColorAsset, FontFamily, swiftgen.yml, structured-swift5, code generation, asset catalog

Expert SwiftUI decisions: property wrapper selection (@State vs @StateObject vs @ObservedObject gotchas), navigation architecture (NavigationStack vs NavigationSplitView), performance traps (body recomputation, identity), and platform-specific patterns for tvOS focus. Use when building SwiftUI views for iOS/tvOS, debugging view update issues, or choosing navigation patterns. Trigger keywords: SwiftUI, @State, @StateObject, @ObservedObject, NavigationStack, sheet, animation, tvOS focus, view identity, body

Expert XCTest decisions for iOS/tvOS: test type selection trade-offs, mock vs stub vs spy judgment calls, async testing pitfalls, and coverage threshold calibration. Use when designing test strategy, debugging flaky tests, or deciding what to test. Trigger keywords: XCTest, unit test, integration test, UI test, mock, stub, spy, async test, expectation, test coverage, XCUITest, TDD, test pyramid

Auto-load active audit context when working with audited code. Use when user is working on code that has an active audit session, discussing audit findings, or making changes related to a runtime audit. Silently loads audit session data to inform responses.

Expert accessibility decisions for iOS/tvOS: when to combine vs separate elements, label vs hint selection, Dynamic Type layout strategies, and WCAG AA compliance trade-offs. Use when implementing VoiceOver support, handling Dynamic Type, or ensuring accessibility compliance. Trigger keywords: accessibility, VoiceOver, Dynamic Type, WCAG, a11y, accessibilityLabel, accessibilityElement, accessibilityTraits, isAccessibilityElement, reduceMotion, contrast, focus

Expert Alamofire decisions for iOS/tvOS: when Alamofire adds value vs URLSession suffices, interceptor chain design trade-offs, retry strategy selection, and certificate pinning considerations. Use when designing network layer, implementing auth token refresh, or choosing between networking approaches. Trigger keywords: Alamofire, URLSession, interceptor, RequestAdapter, RequestRetrier, certificate pinning, Session, network layer, token refresh, retry

This skill should be used when the user asks to "create a skill", "write a skill", "edit a skill", "update a skill", "improve skill description", "add skill to plugin", "organize skill content", "create SKILL.md", "skill frontmatter", "skill structure", "progressive disclosure", or needs guidance on skill development, validation, or best practices for Claude Code plugins and personal skills.

Reference for Gemini CLI usage patterns. Consult before calling gemini via Bash.

Scaffold a new Frappe Framework v15 application with multi-layer architecture. Triggers: "create frappe app", "new frappe app", "scaffold frappe", "frappe app structure", "/frappe-app". Creates production-ready app structure with service layer, repository pattern, proper module organization, and v15 best practices.

Reference for Gemini CLI usage patterns. Consult before calling gemini via Bash.

This skill should be used when the user asks to "write tests", "django tests", "pytest", "test factories", "create test", "add tests", "test coverage", or mentions testing Django applications, fixtures, or factory_boy. Provides pytest-django patterns with factory_boy for test data generation.

Create secure REST API endpoints for Frappe Framework v15 with proper authentication, permissions, and validation. Triggers: "create api", "new endpoint", "frappe api", "rest api", "whitelist method", "/frappe-api". Generates v2 API compatible endpoints with type validation and security best practices.