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kotlin
Write Kotlin with coroutines for structured concurrency, build type-safe DSLs, and use null safety patterns to eliminate NPEs, with LSP support for code intelligence in .kt/.kts files.
What's Inside
Skills3
Kotlin Coroutines
/kotlin-coroutines
Use when kotlin coroutines for structured concurrency including suspend functions, coroutine builders, Flow, channels, and patterns for building efficient asynchronous code with cancellation and exception handling.
Kotlin DSL Patterns
/kotlin-dsl-patterns
Use when domain-specific language design in Kotlin using type-safe builders, infix functions, operator overloading, lambdas with receivers, and patterns for creating expressive, readable DSLs for configuration and domain modeling.
Kotlin Null Safety
/kotlin-null-safety
Use when kotlin's null safety system including nullable types, safe calls, Elvis operator, smart casts, and patterns for eliminating NullPointerExceptions while maintaining code expressiveness and clarity.
README
Han
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.
Getting Started
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.
Alternative Installation
# Homebrew (macOS/Linux)
brew install thebushidocollective/tap/han
How It Works
- Install - One command installs the CLI and auto-detects plugins for your stack
- Code - Claude writes code as usual. No workflow changes needed
- Validate - Stop hooks run automatically. Linters, formatters, type checkers, and tests are all verified
- Learn - Local metrics track success rates and calibrate confidence. Nothing leaves your machine
Plugin Categories
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
Why It Works
- Smart Caching - Only runs validation when relevant files change. Native Rust hashing keeps it fast
- Local Metrics - Tracks task success and confidence calibration. All data stays on your machine
- Zero Config - Binary auto-installs on first session.
--autoflag detects your stack automatically - Any Stack - TypeScript, Python, Rust, Go, Ruby, Elixir. If there's a linter, there's a plugin
CLI Commands
# 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
Documentation
Full documentation at han.guru/docs
Contributing
See CONTRIBUTING.md for how to create new plugins.
License
MIT License - see LICENSE
Built by The Bushido Collective
Stats
Version1.10.0
Released
LanguageTypeScript
Stars152
Forks16
Copy clicks2
MaintenanceGood
LicenseApache-2.0
Last Commit
Added
Available In
Safety Signals
Caution
Modifies files
Hook triggers on file write and edit operations
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