Build, scaffold, refactor, and troubleshoot ChatGPT Apps SDK applications that combine an MCP server and widget UI. Use when Codex needs to design tools, register UI resources, wire the MCP Apps bridge or ChatGPT compatibility APIs, apply Apps SDK metadata or CSP or domain settings, or produce a docs-aligned project scaffold.
Install
npx skills add openai/skills --skill chatgpt-appsnpx skills add openai/skills --skill chatgpt-apps -a claude-code -gnpx skills add openai/skills --skill chatgpt-apps -a codex -ggemini skills install https://github.com/openai/skills.git --path skills/.curated/chatgpt-appsgh skill install openai/skills chatgpt-appsgit clone --depth 1 https://github.com/openai/skills /tmp/openai__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/openai__skills/skills/.curated/chatgpt-apps ~/.claude/skills/chatgpt-apps # Claude Code
cp -R /tmp/openai__skills/skills/.curated/chatgpt-apps ~/.agents/skills/chatgpt-apps # Codex, Cursor, Gemini CLI, Copilot, OpenCode