Set up Vitest browser mode with Playwright or WebDriverIO providers, use page and userEvent APIs, test components. Use when testing browser-specific code or UI components.
/plugin marketplace add djankies/claude-configs/plugin install djankies-vitest-4-vitest-4@djankies/claude-configsThis skill is limited to using the following tools:
references/browser-apis.mdreferences/provider-setup.mdreferences/testing-patterns.mdBuild robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms, validating strategies, or building backtesting infrastructure.