Turn a validated Next.js reproduction and canary verification into the smallest appropriate regression test in vercel/next.js. Use when a confirmed issue needs a focused test that proves the reported behavior and fits the existing Next.js test suite.
Install
npx skills add vercel-labs/next-maintainer-skills --skill nextjs-create-regression-testnpx skills add vercel-labs/next-maintainer-skills --skill nextjs-create-regression-test -a claude-code -gnpx skills add vercel-labs/next-maintainer-skills --skill nextjs-create-regression-test -a codex -ggemini skills install https://github.com/vercel-labs/next-maintainer-skills.git --path skills/nextjs-create-regression-testgh skill install vercel-labs/next-maintainer-skills nextjs-create-regression-testgit clone --depth 1 https://github.com/vercel-labs/next-maintainer-skills /tmp/vercel-labs__next-maintainer-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/vercel-labs__next-maintainer-skills/skills/nextjs-create-regression-test ~/.claude/skills/nextjs-create-regression-test # Claude Code
cp -R /tmp/vercel-labs__next-maintainer-skills/skills/nextjs-create-regression-test ~/.agents/skills/nextjs-create-regression-test # Codex, Cursor, Gemini CLI, Copilot, OpenCode