frontend▌

Help developers set up complete development environments from scratch. This skill provides step-by-step guidance for installing tools, configuring dependencies, setting up environment variables, and verifying the setup works correctly.

Source: fsd.how | Strictness can be adjusted based on project scale and team context.

Provides complete frontend development expertise for building production-ready web applications with modern frameworks (React, Vue, Next.js), comprehensive tooling setup, state management patterns, testing infrastructure, and performance optimization strategies.

Creates beautiful, original visual art and designs in .png and .pdf formats. Specializes in applying design principles, color theory, typography, and composition to produce professional-quality static visual pieces. Always creates original work, never copies existing artists.

This skill provides a reference for writing modern, robust, and efficient CSS.

ln-622-build-auditor

Expert guidance for designing beautiful, accessible, and platform-native mobile app interfaces following 2025 best practices.

Build applications where agents are first-class citizens — not afterthoughts.

Implement small features or bug fixes directly, with strict scope control and verification.

Guide for designing and implementing native-feeling, "good Mac citizen" apps: fast, elegant, accessible, and deeply integrated with macOS workflows.