Installation

Install han binary (required for hooks to work):

curl -fsSL https://han.guru/install.sh | bash

Then install this plugin:

han plugin install jutsu-jest

Overview

Comprehensive Jest testing framework skills for JavaScript and TypeScript projects.

Skills

This plugin provides the following skills:

Jest Advanced
Jest Configuration
Jest Testing Patterns

Usage

Once enabled, Claude will automatically apply these skills when working with relevant code. The plugin provides context and expertise that Claude uses to:

Write idiomatic code following best practices
Suggest appropriate patterns and architectures
Catch common mistakes and anti-patterns
Provide framework-specific guidance

Installation

Install with npx (no installation required):

han plugin install jutsu-jest

License

Licensed under MIT - see repository for details.

Skills

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jest-advanced

Use when advanced Jest features including custom matchers, parameterized tests with test.each, coverage configuration, and performance optimization.

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jest-configuration

Use when jest configuration, setup files, module resolution, and project organization for optimal testing environments.

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jest-testing-patterns

Use when jest testing patterns including unit tests, mocks, spies, snapshots, and assertion techniques for comprehensive test coverage.

Hooks

⚠️

Token Usage Notice

Hooks run automatically during Claude Code sessions and their output is sent to the model for processing. This may increase token usage and associated costs. Consider disabling hooks you don't need via han-config.yml.

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Stop

Runs when the main Claude Code agent has finished responding. Can verify task completion, check quality gates, or ensure documentation requirements are met before the session ends.

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SubagentStop

Runs when a Claude Code subagent (Task tool call) has finished responding. Can validate subagent outputs, enforce quality standards, or trigger additional workflows after delegated tasks complete.