Generates test files, creates mocking strategies, analyzes code coverage, designs test architectures, and produces test plans and defect reports across functional, performance, and security testing disciplines.
Install
npx skills add Jeffallan/claude-skills --skill test-masternpx skills add Jeffallan/claude-skills --skill test-master -a claude-code -gnpx skills add Jeffallan/claude-skills --skill test-master -a codex -ggemini skills install https://github.com/Jeffallan/claude-skills.git --path skills/test-mastergh skill install Jeffallan/claude-skills test-mastergit clone --depth 1 https://github.com/Jeffallan/claude-skills /tmp/Jeffallan__claude-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/Jeffallan__claude-skills/skills/test-master ~/.claude/skills/test-master # Claude Code
cp -R /tmp/Jeffallan__claude-skills/skills/test-master ~/.agents/skills/test-master # Codex, Cursor, Gemini CLI, Copilot, OpenCode