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vitest

Agent-readyGit & GitHubProductivity

Testing, watch mode, and js unit tests from the terminal.

Testing, watch mode, and js unit tests from the terminal. Built by Vitest.

Task fit

testing, watch mode, and js unit tests from the terminal.

Lane

Review PRs, triage issues, inspect workflows, and keep repo work agent-safe.

Operator brief

Use vitest for testing, watch mode, and js unit tests from the terminal.

Run `vitest run` and see what comes back.

Repository family

Vitest

First trust check

vitest responds locally and is ready for the first real command.

Safe first loop

Install, verify, then run one real command.

GitHub review loop

Install command

$ npm i -g vitest

Operator pack

Copy or export the working notes for this CLI before handing it to an agent.

Verify

$ vitest --version

vitest responds locally and is ready for the first real command.

First real command

$ vitest run

First steps

  1. 01Install vitest.
  2. 02Run `vitest --version` first.
  3. 03Start with `vitest run`.
  4. 04Install the CLI and make sure it is on your PATH.

When to use / hold off when

Best for

testing, watch mode, and js unit tests from the terminal.

Use this when

You need productivity workflows in both local dev and CI.

Hold off when

You don't work with productivity workflows.

Trust and constraints

trusted100/100
Install readyTrusted
JSON outputNo
Non-interactiveYes
CI-friendlyYes

Why operators pick it

  • vitest fits git & github well, especially for testing, watch mode, and js unit tests from the terminal.
  • 42,839,442 npm weekly downloads.
  • Easy to automate.

Constraints

  • Output is mostly plain text.

Repository context

Other CLIs in this family

This is the only CLI surfaced from this family right now.

Facts and links

Install withnpm
npm weekly downloads42.8M
GitHub stars16.2K
LicenseMIT
UpdatedMar 25, 2026