Jest Skill

Quality score: 70/100 · Category: Engineering · Sub-category: testing

lang:typescriptlang:javascripttype:integration

Generates Jest unit and integration tests in JavaScript or TypeScript. Covers mocking, snapshots, async testing, and React component testing. Use when user mentions "Jest", "describe/it/expect", "jest.mock", "toMatchSnapshot". Triggers on: "Jest", "expect().toBe()", "jest.mock", "snapshot test", "JS test", "React test".

What this skill does

Jest Skill is a production-ready Claude Code skill (quality score 70/100) in the testing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/jest-skill/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when user mentions "Jest", "describe/it/expect", "jest.mock", "toMatchSnapshot".

Who uses this skill

The Jest Skill skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/jest-skill
curl -L https://claudskills.com/skills/jest-skill/SKILL.md \
  -o ~/.claude/skills/jest-skill/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/jest-skill/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/jest-skill/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\jest-skill\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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