Skills and MCP tagged “build-web-apps”

frontend-app-builder official OpenAI skill This skill designs and builds frontend apps, websites, and games, then checks the result in a browser. Use it for a new interface or an explicit redesign request. CX Codex GP ChatGPT 252installs frontend-testing-debugging official OpenAI skill Guides coding agents through structured frontend testing, UI checks, and bug investigations. Runs validation loops using Browser tools or local Playwright. CX Codex GP ChatGPT 159installs react-best-practices official vercel skill This skill guides agents through performance-focused React and Next.js work. Use it when writing or reviewing components, data fetching, or bundle changes. CX Codex GP ChatGPT 74installs supabase-postgres-best-practices official supabase skill Supabase guidelines for Postgres performance optimization. Helps developers write SQL queries, design database schemas, and configure RLS. CX Codex GP ChatGPT 40installs stripe-best-practices official OpenAI skill This skill guides Stripe API choices for payments, subscriptions, marketplaces, and financial accounts. Use it when building or reviewing a Stripe integration. CX Codex GP ChatGPT 36installs