ouchn-learn

Expert product design covering UI/UX design, design systems, prototyping, user research, and design thinking. Use when creating user journey maps, building wireframes, defining design tokens and component systems, planning usability tests, or establishing design principles for a product.

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 patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.

Design or review the OUCHN AI exam answer-tool architecture. Use when planning provider tool calling, tool-envelope fallback, DOM answer execution tools, error feedback, or refactoring AIResponse-driven answer filling into browser-safe tool execution.

Anthropic Messages API client patterns for Tampermonkey userscripts (browser-side fetch, vision support, error mapping)

Refine, parallelize, and verify a draft task specification into a fully planned implementation-ready task

Expert code review of current git changes with a senior engineer lens. Detects SOLID violations, security risks, and proposes actionable improvements.