Skill Claude CodeCodex
Use when checking subscription unit economics, pricing margins, Apple fee tiers, power-user risk, OCR/LLM variable costs, or rate limits before changing IAP pricing or paywall strategy.
Skill Claude CodeCodex
Use whenever deciding or revising subscription pricing, trial length, trial placement, free tier, paywall design, or any monetization tradeoff for an iOS subscription app. Covers a data-backed methodology: competitor audit, weekly-vs-monthly economics, trial strategy, Apple Review compliance, and paywall UX. Every…
Skill Claude CodeCodex
Use when implementing data visualizations. Covers Swift Charts: BarMark, LineMark, AreaMark, axis customization, scrollable charts.
Skill Claude CodeCodex
Use when build, runtime, or test errors have been resolved and the project needs rules, skills, or scripts updated so the same failure is less likely to recur.
Skill Claude CodeCodex
Use whenever writing or editing user-facing copy in the app — button labels, headers, section titles, card text, toasts, empty states, onboarding, paywalls, notifications, App Store metadata, release notes. Covers the voice, tone, and mechanics of mobile UI microcopy: length caps per element, banned characters…
Skill Claude CodeCodex
Use when a runtime crash occurs, the app crashes on a specific screen, or the user reports an EXCBREAKPOINT / signal abort. Runs automated smoke tests first, then investigates with crash logs and backtraces.
Skill Claude CodeCodex
Use when diagnosing runtime crashes, SwiftUI render errors, concurrency violations, or unexpected behavior. Covers crash investigation methodology, LLDB debugging via XcodeBuildMCP, common iOS crash patterns, and the async renderer color crash.
Skill Claude CodeCodex
Use when a Features/ / folder grows past 5 files, or when adding subviews, sheets, overlays, or backdrops. Covers the nested-subdirectory convention (Sections/, Sheets/, Overlays/, Backdrop/) so features stay browsable instead of accumulating 15 flat files with similar names.
Skill Claude CodeCodex
Use when implementing loading, error, empty, or success states. Covers Loadable switch handling, mutation buttons, loading indicators.
Skill Claude CodeCodex
Use when a build fails or there are unresolved errors. Reads .agents/errors/errors.md, investigates root cause, applies fix, verifies build, and logs the resolution.
Skill Claude CodeCodex
Use when implementing form-based UI. Covers TextField, validation, pickers, stepper, slider, form submission flows.
Skill Claude CodeCodex
Use when implementing on-device AI features. Covers FoundationModels availability, text generation, streaming, @Generable structured output.
Skill Claude CodeCodex
Use when adding tactile feedback. Covers UIImpactFeedbackGenerator, UINotificationFeedbackGenerator, CoreHaptics custom patterns.
Skill Claude CodeCodex
Use when implementing health data features. Covers HealthKit authorization, statistics queries, sample queries, sleep analysis, common types.
Skill Claude CodeCodex
Use when arranging SwiftUI views, fixing layout bugs, extracting subviews, handling safe areas, replacing GeometryReader misuse, or building responsive VStack/HStack/ZStack compositions.
Skill Claude CodeCodex
Use when implementing list-based UI. Covers ForEach identity, swipe actions, pull-to-refresh, custom styling, enumerated sequences.
Skill Claude CodeCodex
Use when implementing or debugging SwiftUI navigation: NavigationStack, NavigationSplitView, TabView, sheets, fullScreenCover, type-safe routes, deep links, and programmatic navigation.
Skill Claude CodeCodex
Use when implementing notification features. Covers UNUserNotificationCenter permission flow, scheduling, badge count, foreground handling.
Skill Claude CodeCodex
Use when designing, implementing, or improving a questionnaire-style onboarding flow for an iOS subscription app. Covers multi-step onboarding, activation questions, paywall lead-in, conversion psychology, progress persistence, and first-run UX. Trigger on onboarding questionnaire, survey flow, first launch questions…