HorseTrack

Review changed frontend files in React, Next.js, Vue, Nuxt, TypeScript, CSS, or UI code. Use for PR/diff review, component quality, accessibility, performance, and test impact.

Improve UI consistency, accessibility, responsive behavior, maintainability, and readable frontend implementation. Use for React/Next/Vue/Nuxt UI quality checks.

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Quickly understand an unfamiliar frontend-first repository. Use before implementation in a new or stale project to map stack, scripts, structure, conventions, risks, and next checks.

Analyze React and Next.js performance risks: rerenders, effects, memoization, bundle size, images, fonts, server/client boundaries, data fetching, and caching.

Plan and run practical web app checks: lint, typecheck, targeted unit/integration tests, Playwright/Vitest/Jest when available, and smoke testing.