vitest

80 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By Asymmetric-al/core (GitHub) · coding · 370 stars · scanned at commit 9a2e00f

Write, review, filter, mock, and debug Core unit tests with the repository's installed Vitest 5 configuration. Use for tests under Core's Vitest include paths, `vi.mock`/spies/timers, jsdom component tests, coverage output, focused reruns, or unit-test failures. Do not use for browser E2E flows or async Next.js Server Components.

Works with any agent that supports SKILL.md skills.

What this skill can do

Downloads and installs other software

The author does not mention this.

Found in 4 places.

.agents/skills/vitest/SKILL.md, line 24committed scripts or `bunx vitest`.
.agents/skills/vitest/SKILL.md, line 33bunx vitest run tests/unit/path/to/example.test.ts
.agents/skills/vitest/SKILL.md, line 36bunx vitest run tests/unit/path/to/example.test.ts -t "expected behavior"

Show 1 more

.agents/skills/vitest/SKILL.md, line 39bunx vitest tests/unit/path/to/example.test.ts

Runs commands on your computer

The author does not mention this. Expected for a coding skill.

Found in 1 place.

.agents/skills/vitest/SKILL.md, line 30bun run test:unit

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'vitest' ] || [ -L ~/.agents/skills/'vitest' ]; then echo 'A skill folder named vitest already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/Asymmetric-al/core' "$d" && git -C "$d" checkout --quiet '9a2e00fcb932035143b81aafc7bf95f13da923f4' -- '.agents/skills/vitest' && mkdir -p ~/.agents/skills && cp -R "$d"/'.agents/skills/vitest' ~/.agents/skills/'vitest' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'vitest' ~/.claude/skills/'vitest' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-13	`9a2e00f`	80
2026-11-09	`f7e94db`	100
2026-11-07	`bfde43a`	100

Also found in

Identical copies of this skill exist at:

Asymmetric-al/core/.claude/skills/vitest
Asymmetric-al/core/.cursor/skills/vitest
Asymmetric-al/core/docs/ai/skills/vitest