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Vitest 3: new features and migration from Jest v1.0.0

Use this resource to use Vitest 3 or migrate a test suite to Vitest

New

  • 555 downloads
  • 246 likes
  • 217 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install vitest-3-features-migration

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent sets up test projects, adds annotations and line filtering, then guides migration from Jest or Vitest 2. You get a working Vitest 3 configuration.

Mostly picked by

Updated November 2, 2026

Card for the “Vitest 3: new features and migration from Jest” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: annotations, line filtering and watch mode
  • SKILL.md: projects configuration, browser mode and migration from Jest

Good fit for

  • You migrate a Jest suite to Vitest
  • You organize a monorepo into test projects

Not for

    Tags

    • vitest
    • tests
    • migration
    • monorepo
    • jest

    About

    You say

    “Migrate my Jest suite to Vitest 3 and set up one project per monorepo package.”

    Card for the “Vitest 3: new features and migration from Jest” skill

    Skill published by josiahsiegel under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to use Vitest 3 or migrate a test suite to Vitest
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md13.3 KB

    Origin and licence

    Listed unmodified

    Author
    josiahsiegel
    Source
    github.com/josiahsiegel/claude-plugin-marketplace/tree/5a1b1123b9e50aa9a66a61005ca6fe012cc7442d/plugins/test-master/skills/vitest-3-features
    Licence
    MIT

    Notice

    « vitest-3-features » (josiahsiegel, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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