Move testing activities earlier in the development lifecycle to catch defects when they're cheapest to fix. Use when implementing TDD, CI/CD, or early quality practices.
Install
npx skills add proffesor-for-testing/agentic-qe --skill shift-left-testingnpx skills add proffesor-for-testing/agentic-qe --skill shift-left-testing -a claude-code -gnpx skills add proffesor-for-testing/agentic-qe --skill shift-left-testing -a codex -ggemini skills install https://github.com/proffesor-for-testing/agentic-qe.git --path .claude/skills/shift-left-testinggh skill install proffesor-for-testing/agentic-qe shift-left-testinggit clone --depth 1 https://github.com/proffesor-for-testing/agentic-qe /tmp/proffesor-for-testing__agentic-qe
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/proffesor-for-testing__agentic-qe/.claude/skills/shift-left-testing ~/.claude/skills/shift-left-testing # Claude Code
cp -R /tmp/proffesor-for-testing__agentic-qe/.claude/skills/shift-left-testing ~/.agents/skills/shift-left-testing # Codex, Cursor, Gemini CLI, Copilot, OpenCode