Skill rating

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patter

Run an extremely strict maintainability review for abstraction quality, giant files, and spaghetti-condition growth. Use for ANY review ask — "review", "review this", "review the branch/PR/diff/change

Generate multiple radically different interface designs for a module using parallel sub-agents. Use when user wants to design an API, explore interface options, compare module shapes, or mentions "des

Drive the desktop (Electron) dev app from an agent - launch isolated instances that act as separate devices, sign them in, click, type and read them over CDP, answer native dialogs, screenshot app win

Invoke whenever writing, changing, reviewing, or sweeping tests. Authoring gate for new tests plus audit workflow for low-value, implementation-coupled, or duplicative tests and the test-only producti

Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum an

Anti-slop frontend skill for landing pages, portfolios, and redesigns. The agent reads the brief, infers the right design direction, and ships interfaces that do not look templated. Real design system

Tamery's UI design system and hard rules — native macOS look, three-level color system, typography tokens, motion recipes, and the kit's known gotchas. Use whenever building, restyling, or reviewing a