Development

Expert guide on prompt engineering patterns, best practices, and optimization techniques. Use when user wants to improve prompts, learn prompting strategies, or debug agent behavior.

Master Python 3.12+ with modern features, async programming,

Implement comprehensive testing strategies with pytest, fixtures, mocking, and test-driven development. Use when writing Python tests, setting up test suites, or implementing testing best practices.

Python development principles and decision-making. Framework selection, async patterns, type hints, project structure. Teaches thinking, not copying.

Profile and optimize Python code using cProfile, memory profilers, and performance best practices. Use when debugging slow Python code, optimizing bottlenecks, or improving application performance.

Build accessible design systems with Radix UI primitives. Headless component customization, theming strategies, and compound component patterns for production-grade UI libraries.

Build financial models, backtest trading strategies, and analyze

Red team tactics principles based on MITRE ATT&CK. Attack phases, detection evasion, reporting.

Modern React patterns and principles. Hooks, composition, performance, TypeScript best practices.

Master modern React state management with Redux Toolkit, Zustand, Jotai, and React Query. Use when setting up global state, managing server state, or choosing between state management solutions.

Modern React UI patterns for loading states, error handling, and data fetching. Use when building UI components, handling async data, or managing UI states.

Best practices for Remotion - Video creation in React

Use when completing tasks, implementing major features, or before merging to verify work meets requirements

Expert reverse engineer specializing in binary analysis,

Creates exhaustive technical references and API documentation.

Automate Reddit tasks via Rube MCP (Composio): search subreddits, create posts, manage comments, and browse top content. Always search tools first for current schemas.

Master Rust async programming with Tokio, async traits, error handling, and concurrent patterns. Use when building async Rust applications, implementing concurrent systems, or debugging async code.

Master Rust 1.75+ with modern async patterns, advanced type system

Calculate portfolio risk metrics including VaR, CVaR, Sharpe, Sortino, and drawdown analysis. Use when measuring portfolio risk, implementing risk limits, or building risk monitoring systems.

Write idiomatic Ruby code with metaprogramming, Rails patterns, and

Master enterprise-grade Scala development with functional

Generate marketing screenshots of your app using Playwright. Use when the user wants to create screenshots for Product Hunt, social media, landing pages, or documentation.

Expert security auditor specializing in DevSecOps, comprehensive

Static Application Security Testing (SAST) for code vulnerability