Set up and run SumUp sandbox tests. Use when configuring a SumUp test merchant, picking test cards, triggering deliberate failure (`amount = 11`), or building a SumUp end-to-end test harness.
Install
npx skills add sumup/sumup-skills --skill sumup-testingnpx skills add sumup/sumup-skills --skill sumup-testing -a claude-code -gnpx skills add sumup/sumup-skills --skill sumup-testing -a codex -ggemini skills install https://github.com/sumup/sumup-skills.git --path skills/sumup-testinggh skill install sumup/sumup-skills sumup-testinggit clone --depth 1 https://github.com/sumup/sumup-skills /tmp/sumup__sumup-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/sumup__sumup-skills/skills/sumup-testing ~/.claude/skills/sumup-testing # Claude Code
cp -R /tmp/sumup__sumup-skills/skills/sumup-testing ~/.agents/skills/sumup-testing # Codex, Cursor, Gemini CLI, Copilot, OpenCode