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The correct evaluation methodology for time-series sports prediction models. Use when user asks about model validation, cross-validation, train/test split, accuracy evaluation, overfitting detection, or statistical significance of sports model results. Refuses to run k-fold cross-validation on time-series data -- always redirects to walk-forward. Do not use for backtesting betting strategies with

Write clear, comprehensive technical documentation. Use when creating specs, architecture docs, runbooks, or API documentation. Handles technical specifications, system design docs, operational guides, and developer documentation with industry best practices.

Stripe integration via Apideck's Accounting unified API — same methods work across every connector in Accounting, switch by changing `serviceId`. Use when the user wants to read, write, or reconcile invoices, bills, payments, ledger accounts, and journal entries in Stripe. Routes through Apideck with serviceId "stripe".

Expert in secure mobile coding practices specializing in input

High-performance PostgreSQL patterns. Use when optimizing queries, designing for scale, or debugging performance issues.

Depura e resolve problemas de produção no Azure, com foco em diagnósticos de Container Apps, análise de logs com KQL e verificações de saúde. Aborda problemas comuns como falhas de pull de imagem, inicializações a frio e problemas de sondagem de saúde.

Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides comprehensive security checklist and patterns.

Use when creating UI components in React - functional components, hooks, custom hooks, or component composition patterns. NOT when backend logic, API routes, or non-React frameworks are involved. Triggers: "create component", "build widget", "KPI card", "form", "modal", "custom hook", "useContext", "useState", "useEffect".

Security auditor for Laravel applications. Analyzes code for vulnerabilities, misconfigurations, and insecure practices using OWASP standards and Laravel security best practices.

Distributed computing for larger-than-RAM pandas/NumPy workflows. Use when you need to scale existing pandas/NumPy code beyond memory or across clusters. Best for parallel file processing, distributed ML, integration with existing pandas code. For out-of-core analytics on single machine use vaex; for in-memory speed use polars.

SDK do Azure Resource Manager para Durable Task Scheduler em .NET. Ele permite operações de plano de gerenciamento, como criar e gerenciar Durable Task Schedulers, Task Hubs e políticas de retenção via Azure Resource Manager.

JavaScript/TypeScript ES2024+, async/await, DOM manipulation, Node.js, and API integration. Use when writing vanilla JS/TS code, working with REST/fetch APIs, implementing frontend logic, or configuring JS build tools.