Configure and run Jest test suites for JavaScript and TypeScript projects with custom matchers, parameterized tests, coverage thresholds, and performance optimization.
Use when advanced Jest features including custom matchers, parameterized tests with test.each, coverage configuration, and performance optimization.
Use when jest configuration, setup files, module resolution, and project organization for optimal testing environments.
Use when jest testing patterns including unit tests, mocks, spies, snapshots, and assertion techniques for comprehensive test coverage.
Ship-ready code from your AI coding agent. 139+ plugins for quality gates, tooling, memory, and specialized agents — so your AI writes code that's ready to merge.
Two commands. That's it.
# 1. Install the CLI
curl -fsSL https://han.guru/install.sh | bash
# 2. Auto-detect and install plugins for your project
han plugin install --auto
Next time you use Claude Code, validation hooks run automatically when you finish a conversation.
# Homebrew (macOS/Linux)
brew install thebushidocollective/tap/han
139 plugins across six categories:
| Category | Description | Examples |
|---|---|---|
| Core | Essential infrastructure. Auto-installs han binary, provides metrics and MCP servers | Always required |
| Languages | Validation plugins for your language/runtime | TypeScript, Rust, Python, Go, Ruby |
| Validation | Linters, formatters, and quality tools | Biome, ESLint, ShellCheck, Pytest |
| Disciplines | Specialized AI agents for engineering domains | Security, accessibility, API design, architecture |
| Services | MCP servers for external platforms | GitHub, GitLab, Linear |
| Tools | MCP servers for development utilities | Playwright, Blueprints, Context7 |
Browse all plugins at han.guru/plugins
--auto flag detects your stack automatically# Install plugins
han plugin install # Interactive mode
han plugin install --auto # Auto-detect your stack
han plugin install <name> # Install specific plugin
# Manage plugins
han plugin search <query> # Search marketplace
han plugin uninstall <name> # Remove plugin
# Run hooks manually
han hook run <plugin> <hook> # Run a specific hook
han hook explain # Show configured hooks
# MCP server
han mcp # Start MCP server for natural language hook execution
Full documentation at han.guru/docs
See CONTRIBUTING.md for how to create new plugins.
MIT License - see LICENSE
Built by The Bushido Collective
Modifies files
Hook triggers on file write and edit operations
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Sign in to claimBased on adoption, maintenance, documentation, and repository signals. Not a security audit or endorsement.
npx claudepluginhub thebushidocollective/han --plugin jestThe philosophy of the Samurai applied to software development. Injects the seven virtues (義 Righteousness, 勇 Courage, 仁 Compassion, 礼 Respect, 誠 Honesty, 名誉 Honor, 忠義 Loyalty) to guide agent behavior. Requires core for infrastructure.
Vite build validation with automatic package manager detection.
Agents specialized in technical documentation and knowledge management. Focuses on documentation architecture and user-focused writing.
TypeScript compiler validation and type checking for TypeScript projects.
Agents specialized in infrastructure management, DevOps, and site reliability engineering. Focuses on deployment, monitoring, and system operations.
Comprehensive Vitest testing framework skills for modern Vite-powered JavaScript and TypeScript projects.
Generate Jest unit tests for JavaScript/TypeScript with mocking, coverage. Use for JS/TS modules, React components, test generation, or encountering missing coverage, improper mocking, test structure errors.
JavaScript and TypeScript development toolkit with ESLint, Vitest, and unit testing best practices
TestForge - Master of quality assurance through intelligent test generation. Analyzes code behavior to auto-generate comprehensive tests that catch real bugs, not just boost coverage numbers. Supports Jest, Pytest, Vitest, and more.
Automatically generate comprehensive unit tests from source code with multiple testing framework support
Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.