How do I install vitest?

Run npx skills add antfu/skills. The skills installer reads the repository’s own structure, so it works for any repository of agent skills.

Is vitest maintained, and what licence does it use?

Its repository has 6,011 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-23. The repository declares the MIT licence.

InfratoApp / Resources / Agent skills / vitest

vitest

vitest is an agent skill published by antfu, listed under review & testing. It lives in the antfu/skills repository, which has 6,011 GitHub stars and is licensed under MIT; we last read it on 2026-10-23.

Vitest is a fast unit testing framework that uses Vite and is compatible with Jest's API. It is used for writing tests, mocking, configuring coverage, and handling test filtering and fixtures.

by antfu · one of 21 skills in antfu/skills →

Install

skills is a generic installer for any repository of Claude agent skills -- it reads antfu/skills’s own structure rather than assuming one, the same way this page reads the skill’s own SKILL.md rather than assuming a format.

npx skills add antfu/skills

Maintenance

Stars

6011

State

listed

Licence

MIT

From the repository

Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.

View on GitHub ↗2026-10-23

vitest compared with similar skills

vitest compared with other skills for the same job, by publisher, what it does, repository stars and last update
Skill	Publisher	What it does	Repo stars	Last update
vitest (this page)	antfu	Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking,…	6,011	2026-10-23
code-review	mattpocock	Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does t…	303,549	2026-10-22
scaffold-exercises	mattpocock	Create exercise directory structures with sections, problems, solutions, and explainers that pass linting. Us…	303,549	2026-10-22
tdd	mattpocock	Test-driven development. Use when the user wants to build features or fix bugs test-first, mentions "red-gree…	303,549	2026-10-22
webapp-testing	anthropic	Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend…	183,845	2026-10-09
browser-testing-with-devtools	addyosmani	Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browse…	110,611	2026-10-13
code-review-and-quality	addyosmani	Conducts multi-axis code review. Use before merging any change. Use when reviewing code written by yourself,…	110,611	2026-10-13

Skills from the same repository first, then others for this job by repository stars. Figures are from each repository when we last read it.

Common questions about vitest

What does vitest do?: Vitest is a fast unit testing framework that uses Vite and is compatible with Jest's API. It is used for writing tests, mocking, configuring coverage, and handling test filtering and fixtures.
How do I install vitest?: Run npx skills add antfu/skills. The skills installer reads the repository’s own structure, so it works for any repository of agent skills.
Who publishes vitest?: antfu.
Is vitest maintained, and what licence does it use?: Its repository has 6,011 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-23. The repository declares the MIT licence.

More agent skills for review & testing

browser-testing-with-devtoolsby addyosmani
code-review-and-qualityby addyosmani
code-simplificationby addyosmani
doubt-driven-developmentby addyosmani
webapp-testingby anthropic
apify-actor-developmentby apify

All review & testing entries →