Testing and QA

Validate trading strategies against historical data before risking real capital. This skill provides a complete backtesting framework with 8 built-in strategies, comprehensive performance metrics, and parameter optimization.

Comprehensive guidance for writing comprehensive unit tests for shell scripts using Bats (Bash Automated Testing System), including test patterns, fixtures, and best practices for production-grade shell testing.

Modern web development standards based on Lighthouse best practices audits. Covers security, browser compatibility, and code quality patterns.

This skill helps you build LLM-powered applications with Claude. Choose the right surface based on your needs, detect the project language, then read the relevant language-specific documentation.

Check package.json to determine the Clerk SDK version. This determines which patterns to use:

Version : Check package.json for the SDK version — see clerk skill for the version table. Core 2 differences are noted inline with > **Core 2 ONLY (skip if current SDK):** callouts.

Refactor high-complexity React components in the Dify frontend codebase with the patterns and workflow below.

Source details, install context, and public review data are available on the full page.

This skill acts as your writing partner, helping you research, outline, draft, and refine content while maintaining your unique voice and style.

Build production-ready Convex applications by following established patterns for function organization, query optimization, validation, TypeScript usage, and error handling.

Use Copilot Spaces to bring curated, project-specific context into conversations. A Space is a shared collection of repositories, files, documentation, and instructions that grounds Copilot responses in your team's actual code and knowledge.

Targeted optimization for the three Core Web Vitals metrics that affect Google Search ranking and user experience.

Chart selection guidance, Python visualization code patterns, design principles, and accessibility considerations for creating effective data visualizations.

Production-ready patterns for dbt (data build tool) including model organization, testing strategies, documentation, and incremental processing.

This is a skill for production-grade UI design. It supports consistent and scalable frontend development through clear design tokens, layout rules, motion guidelines, and accessibility checks.

Implement distributed tracing with Jaeger and Tempo for request flow visibility across microservices.

Build stateful, coordinated applications on Cloudflare's edge using Durable Objects.

Always consult elysiajs.com/llms.txt for code examples and latest API.

Production-tested patterns for FastAPI with Pydantic v2, SQLAlchemy 2.0 async, and JWT authentication.

This skill lets AI agents read, monitor, and operate Microsoft Power Automate cloud flows programmatically through a FlowStudio MCP server — no browser, no UI, no manual steps.

Develop Hono applications efficiently using Hono CLI ( @hono/cli ).

Patterns for combining vector similarity and keyword-based search.

Comprehensive guide to Istio traffic management for production service mesh deployments.

Step-by-step guidance for creating production-ready Kubernetes manifests including Deployments, Services, ConfigMaps, Secrets, and PersistentVolumeClaims.