Provides before/after patterns for migrating test files to React 19 compatibility, including act() imports, Simulate removal, and StrictMode call count changes.
Install
npx skills add github/awesome-copilot --skill react19-test-patternsnpx skills add github/awesome-copilot --skill react19-test-patterns -a claude-code -gnpx skills add github/awesome-copilot --skill react19-test-patterns -a codex -ggemini skills install https://github.com/github/awesome-copilot.git --path skills/react19-test-patternsgh skill install github/awesome-copilot react19-test-patternsgit clone --depth 1 https://github.com/github/awesome-copilot /tmp/github__awesome-copilot
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/github__awesome-copilot/skills/react19-test-patterns ~/.claude/skills/react19-test-patterns # Claude Code
cp -R /tmp/github__awesome-copilot/skills/react19-test-patterns ~/.agents/skills/react19-test-patterns # Codex, Cursor, Gemini CLI, Copilot, OpenCode