Mobile

This skill should be used when creating or extending ActorSheet/ItemSheet classes, implementing getData or _prepareContext, binding events with activateListeners, handling drag/drop, or migrating from ApplicationV1 to ApplicationV2. Covers both legacy V1 and modern V2 patterns.

Use when writing tests with Swift Testing (@Test,

Get unstuck when blocked on a problem. Use when you've tried multiple approaches without success, or when debugging has hit a wall.

Expo Router navigation patterns for React Native. Use when implementing navigation, routing, deep links, tab bars, modals, or handling navigation state in Expo apps.

Measure SSR hydration timing and issues. Use when tracking hydration performance, debugging hydration mismatches, or optimizing SSR/SSG applications.

Use this skill when working with Apple's Foundation Models framework for on-device AI and LLM capabilities in iOS/macOS apps

Unconventional problem-solving with chaotic good energy. Finds creative edge cases, challenges assumptions, explores weird solutions that technically work. Use when you want creative chaos, alternative approaches, or to test if "normal" is actually optimal.

Apply systematic debugging methodology using medical differential diagnosis principles. Trigger when AI modifies working code and anomalies occur, or when users report unexpected test results or execution failures. Use observation without preconception, fact isolation, differential diagnosis lists, deductive exclusion, experimental verification, precise fixes, and prevention mechanisms.

Scans code for security vulnerabilities, hardcoded secrets, and unsafe patterns in React Native and Expo applications. Use before merging sensitive changes or as part of a regular audit.

Performance optimization for React Native. Use when optimizing lists, preventing re-renders, memoizing components, or debugging performance issues in Expo/React Native apps.

Practical DDD patterns for Jakarta EE web applications with cognitive load distribution. Use when designing controllers, entities, services, or evaluating cohesion and load balance.

Apply personal writing style when drafting documents, notes, or any written content. Triggers when user asks to write, draft, create content, or requests style application. Does NOT affect conversation tone - only written artifacts.

Use Lockplane for safe database schema management - define schemas in .lp.sql files, validate, and apply with shadow DB testing

Resolve disagreements between agents or approaches using test-based adjudication. Use when agents disagree, when multiple valid approaches exist, when the user asks "which approach", or when making architectural decisions with tradeoffs.

Designs modern, clean iOS screens and components for Expo React Native apps following Apple HIG with safe areas, Dynamic Type, dark mode, accessibility, Liquid Glass materials, and App Store readiness.

Expert in Mobile Development (iOS, Android, React Native, Flutter), Blockchain, Game Development, Git, Full-Stack, QA, Product Management, Technical Writing, DevRel, and Cyber Security. Build modern applications and master specialized tech roles.

This skill should be used when the user asks to "write XCUITest", "create UI tests", "fix flaky tests", "query XCUIElements", "implement Page Object pattern", or mentions XCUITest, UI testing for iOS/macOS apps. Targets experienced iOS developers who want best practices and efficiency improvements.

AI-native E2E testing orchestration for Claude Code. Use when creating, running, or managing end-to-end test scenarios with visual evidence capture. Activates for tasks involving E2E tests, browser automation testing, test scenario creation, test execution with screenshots, or checking test status.

Extract panel schedule data from images using constraint-first approach

Implements binary arithmetic operations using monad priority promotion via _promoteForComputation. Use when creating arithmetic operations (add, subtract, multiply, divide, etc.) where BOTH operands are monad-wrapped. NOT for simple/function parameter functions - use three-path-pattern skill for those. Work on ONE function at a time.