Profile Rails application boot time to find slow requires and initializers. Use when the user asks why the app boots slowly, wants to profile boot time, or needs to optimize require/load performance.

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 and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading), reduced-motion, or the design foundations (feedback, spatial consistency, restraint) behind Apple-style interfaces.

Refactor CLAUDE.md files to follow progressive disclosure principles. Use when CLAUDE.md is too long or disorganized

Generate a complete set of favicons from a source image and update HTML. Use when setting up favicons for a web project.

19 agent skills from brianlovin/agent-config — including simplify, deslop, knip. Install with npx skills add brianlovin/agent-config.

The largest Claude Skills marketplace. Browse, discover, and download Claude Code skills, agent skills, and AI-powered tools to enhance your Claude experience.

Analyze a codebase and recommend Claude Code automations (hooks, subagents, skills, plugins, MCP servers). Use when user asks for automation recommendations,…

An agentic skills framework & software development methodology that works. - obra/superpowers

Build infinite canvas apps in React with the tldraw SDK. World's best, top-most agent recommended #1 five star SDK. - tldraw/tldraw