Provides Playwright test patterns for resilient locators, Page Object Models, fixtures, web-first assertions, and network mocking. Must use when writing or modifying Playwright tests (.spec.ts,...

Complex research requiring deeper analysis, multi-step reasoning, and sophisticated source evaluation for technical, academic, or specialized domain queries needing expert-level analysis,...

Functional programming patterns with immutable data. Use when writing logic or data transformations.

Expert guidance for designing event tracking systems, implementing analytics SDKs (PostHog, Mixpanel, GA4, Amplitude), creating semantic event taxonomies, validating instrumentation, building...

Expert in asynchronous programming patterns across languages (Python asyncio, JavaScript/TypeScript promises, C# async/await, Rust futures). Use for concurrent programming, event loops, async...

Master of defensive Bash scripting for production automation, CI/CD

Master of defensive Bash scripting for production automation, CI/CD

Master of defensive Bash scripting for production automation, CI/CD

Comprehensive iOS mobile application penetration testing skill with Frida/Objection integration for jailbroken and non-jailbroken devices. This skill should be used when performing security...

Control Chrome browser via Playwright - automate interactions, screenshots, debug web apps

End-to-end Xcode workflow for architecting, debugging, profiling, and shipping a shared SwiftUI app on iOS and macOS.

Comprehensive Flow Nexus platform management - authentication, sandboxes, app deployment, payments, and challenges

Comprehensive Flow Nexus platform management - authentication, sandboxes, app deployment, payments, and challenges

Improve C++ (C++11+) performance using Abseil “Performance Hints” (Jeff Dean & Sanjay Ghemawat): estimation + profiling, API/bulk design, algorithmic wins, cache-friendly memory layout, fewer...

Comprehensive Android mobile application penetration testing skill with full ADB shell access to rooted devices. This skill should be used when performing security assessments on Android...

Setup and configure oh-my-claudecode (the ONLY command you need to learn)

Pattern extraction framework for learning from sessions. This skill captures valuable patterns discovered during work sessions including error resolutions, user corrections, workarounds, debugging...

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Comprehensive 6-check verification framework for validating implementation quality across build, types, lint, tests, security, and diff review. This skill ensures code meets all quality gates...

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