Explore skills

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 performance optimization. Specializes in Ruby on Rails, gem development, and testing frameworks.

Draft cold emails, follow-ups, and proposal templates. Creates pricing pages, case studies, and sales scripts. Use PROACTIVELY for sales outreach or lead nurturing.

Asks clarifying questions in multiple rounds before starting ambiguous tasks. Fires when 2+ task dimensions each have 3+ viable answers.

CRITICAL: Use for Robius app architecture patterns. Triggers on: Tokio, async, submit_async_request, 异步, 架构, SignalToUI, Cx::post_action, worker task, app structure, MatchEvent, handle_startup

CRITICAL: Use for Robius state management patterns. Triggers on: AppState, persistence, theme switch, 状态管理, Scope::with_data, save state, load state, serde, 状态持久化, 主题切换

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 features, and production-ready systems programming.

Use when planning or building a SaaS MVP from scratch. Provides a structured roadmap covering tech stack, architecture, auth, payments, and launch checklist.

Expert patterns for Salesforce platform development including

Design, validate, and optimize schema.org structured data for eligibility, correctness, and measurable SEO impact.

Machine learning in Python with scikit-learn. Use for classification, regression, clustering, model evaluation, and ML pipelines.