Vitest API and config reference (Jest-compatible) — mocking with vi.*, spies, fake timers, coverage configuration, fixtures, snapshots, and test filtering. Use for Vitest API and configuration questions anywhere in the monorepo; for Studio-specific test strategy and component-test setup, start with studio-testing and studio-mock-api-tests.
Install
npx skills add supabase/supabase --skill vitestnpx skills add supabase/supabase --skill vitest -a claude-code -gnpx skills add supabase/supabase --skill vitest -a codex -ggemini skills install https://github.com/supabase/supabase.git --path .agents/skills/vitestgh skill install supabase/supabase vitestgit clone --depth 1 https://github.com/supabase/supabase /tmp/supabase__supabase
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/supabase__supabase/.agents/skills/vitest ~/.claude/skills/vitest # Claude Code
cp -R /tmp/supabase__supabase/.agents/skills/vitest ~/.agents/skills/vitest # Codex, Cursor, Gemini CLI, Copilot, OpenCode