Janko Marohnić

pg_partman. Partition management extension for PostgreSQL

rv. 💎💨 Extremely fast Ruby version and gem manager

linus-torvalds-skills. A single CLAUDE.md file to improve Claude Code behavior, derived from Linus Torvalds' observations on coding pitfalls.

vtsls. LSP wrapper for typescript extension of vscode

claude-code-project-boundary. Claude Code plugin: scope-aware protection — allows destructive ops (rm, mv, chmod) within project, blocks them outside. Built for dangerouslySkipPermissions mode.

elena. Elena is a simple, tiny library for building Progressive Web Components.

sidekiq-cron. Scheduler / Cron for Sidekiq jobs

cctop. A keyboard-first menubar app to monitor and jump between AI coding sessions — minimum setup required.

fixturebot. The speed of fixtures with the syntactic sugar of factories.

rails_vite. Simple Vite integration for Rails, inspired by Laravel. No proxy, no config duplication.

claude-plugins-official. Official, Anthropic-managed directory of high quality Claude Code Plugins.

rubydex. A high-performance static analysis toolkit for Ruby

superpowers. An agentic skills framework & software development methodology that works.

skills. Claude skills based on the Layered Rails book and beyond

skill-rails-upgrade.

agent-browser. Browser automation CLI for AI agents

agent_ferrum. Browser automation library optimized for AI agents. Wraps Ferrum (Chrome headless via CDP) with compact snapshots: accessibility tree + markdown.

chrome-devtools-mcp. Chrome DevTools for coding agents

sqlit. A user friendly TUI for SQL databases. Written in python. Supports SQL server, Mysql, PostreSQL, SQLite, Turso and more.

ruby-agent-skills. A collection of Agent Skills designed for efficient work with Ruby type signatures, including RBS, Sorbet, and other typing systems

ruby-sdk. The official Ruby SDK for the Model Context Protocol.

ruby-skills. Claude Code plugins for Ruby development.

draggable. The JavaScript Drag & Drop library your grandparents warned you about.

ruby-deprecate_public. Warn when calling private methods via public interface

protocol-url. Ruby

exreg. A Unicode regular expression library written in Ruby

psych-pure. A YAML parser written in Ruby

rubocop-erb. RuboCop plugin for ERB template.

error_highlight. The gem enhances Exception#message by adding a short explanation where the exception is raised

agentskills. Specification and documentation for Agent Skills

language-server-protocol. Defines a common protocol for language servers.

maskicons. TypeScript

ghostty. 👻 Soothing pastel theme for Ghostty

rubocop-rails. A RuboCop extension focused on enforcing Rails best practices and coding conventions.

validates_timeliness. Date and time validation plugin for ActiveModel and Rails. Supports multiple ORMs and allows custom date/time formats.

claude-ruby-plugins. Claude Code skills, commands, and agents for writing Ruby RBS type signatures

low_type. Elegant types in Ruby

ruby-lsp-factory_bot. Ruby LSP add-on that provides additional editor features for FactoryBot factories

try. fresh directories for every vibe

zed-comment. A comment extension for the Zed editor

yabeda-puma-plugin. Collects Puma web-server metrics from puma control panel

ruby-lsp-rspec. A Ruby LSP addon for RSpec tests

cov-loupe. Refines Ruby Simplecov test coverage data as CLI, MCP server, and library

active_record_compose. activemodel form object pattern. it embraces multiple AR models and provides a transparent interface as if they were a single model.

countries. All sorts of useful information about every country packaged as convenient little country objects. It includes data from ISO 3166 (countries and states/subdivisions ), ISO 4217 (currency), and E.164 (phone numbers).

reactionview. 🌱 A new ActionView-compatible ERB engine with modern DX - re-imagined with Herb.

lexxy. A modern rich text editor for Rails.

agents.md. AGENTS.md — a simple, open format for guiding coding agents

claude-agent-acp. Use Claude Agent SDK from any ACP client

tidewave_rails. MCP server with runtime-level tools for Rails development

agent-client-protocol. A protocol for connecting any editor to any agent

codecompanion.nvim. ✨ AI Coding, Vim Style

action_push_native. Rails push notifications for mobile platforms

awesome-ruby-lsp. A curated list of awesome addons for ruby-lsp

thruster. Go

passive_queue. Rails queue adapter for mindful developers. Accepts all jobs, executes none. Perfect reliability through strategic non-action.

activeagent. ActiveAgent Rails framework for Agent Apps

agent-context. A framework for Ruby Gems to expose LLM context.

ferrum_pdf. A PDF generator for Rails using Ferrum & headless Chrome

Leaflet. 🍃 JavaScript library for mobile-friendly interactive maps 🇺🇦

harper. Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

mcp-remote. TypeScript

geocoder. Complete Ruby geocoding solution.

context7. Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors

container. A tool for creating and running Linux containers using lightweight virtual machines on a Mac. It is written in Swift, and optimized for Apple silicon.

claude-code. Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

rubyschema. Ruby

github-mcp-server. GitHub's official MCP Server

solid_errors. database-backed, app-internal exception tracker for Rails applications

rails-mcp-server. A Ruby gem implementation of a Model Context Protocol (MCP) server for Rails projects. This server allows LLMs (Large Language Models) to interact with Rails projects through the Model Context Protocol.

croatia. A Ruby Gem with various Croatia-specific utilities

gem-clone. Ruby

roast. Structured AI workflows made easy

bundler_mcp. A Model Context Protocol (MCP) server enabling AI agents to query information about gems in a Ruby project's Gemfile, including source code and metadata.

sentry-mcp. An MCP server for interacting with Sentry via LLMs.

herb. 🌿 Powerful and seamless HTML-aware ERB toolchain.

difftastic. a structural diff that understands syntax 🟥🟩

fast-mcp. A Ruby Implementation of the Model Context Protocol

modelcontextprotocol. Specification and documentation for the Model Context Protocol

ruby_ui. Ruby gem for RubyUI Components

servers. Model Context Protocol Servers

bridge-components. A collection of bridge components for Hotwire Native apps.

ruby_llm. One delightful Ruby framework for every major AI provider. Build AI agents, chatbots, RAG apps, and multimodal workflows in beautiful, expressive code.

graphql-client. A Ruby library for declaring, composing and executing GraphQL queries

nice_partials. A little bit of magic to make partials perfect for components.

solid_queue. Database-backed Active Job backend

maintenance_tasks. A Rails engine for queueing and managing data migrations.

ruby. The Ruby language support for Zed editor

invisible_captcha. 🍯 Unobtrusive and flexible spam protection for Rails apps

mission_control-jobs. Dashboard and Active Job extensions to operate and troubleshoot background jobs

spark. Hot reloading for Hotwire

solid_cable. A database backed ActionCable adapter

gli. Make awesome command-line applications the easy way

tailwindcss-ruby. A self-contained `tailwindcss` executable, wrapped up in a ruby gem.

tree-sitter-haml. HAML grammar for tree-sitter

app_profiler. Collect performance profiles for your Rails application.

all-ruby. Run various versions of ruby command

cash. An absurdly small jQuery alternative for modern browsers.

roda-sse. A Roda plugin for SSE

turbo-mount. Use React, Vue, Svelte, and other components with Hotwire

vite-plugin-svelte. Svelte plugin for https://vite.dev

tree-sitter-slim. Slim template language grammar for tree-sitter

zed-slim. Slim template support for Zed

actual_db_schema. Keep DB schema in sync across branches effortlessly. Install and use rails db:migrate as normal. The gem handles the rest automatically.

heap-profiler. Ruby heap profiler

redoc. 📘 OpenAPI/Swagger-generated API Reference Documentation

maybe. The personal finance app for everyone

moneta. a unified interface to key/value stores

zellij. A terminal workspace with batteries included

activerecord-has_some_of_many. Optimized top-N-per-group Active Record associations using lateral joins

get_process_mem. Get memory usage of a process in Ruby

nicetest. minitest + cli + colors

active_record_tracer. A tracer for Active Record queries

zed-stimulus. Stimulus LSP support for Zed

uri. URI is a module providing classes to handle Uniform Resource Identifiers

tree-sitter-ruby. Ruby grammar for tree-sitter

ruby-lsp-rails. A Ruby LSP add-on for Rails

stimulus-lsp. Intelligent Stimulus tooling for Visual Studio Code, Neovim, and more!

cyperful. Interactive system testing UI for capybara

turbo-confirm. The easiest way to add custom confirmation dialog support to Rails apps.

autotuner. Get suggestions to tune Ruby's garbage collector

LazyVim. Neovim config for the lazy

lazy.nvim. 💤 A modern plugin manager for Neovim

activerecord-originator. A RubyGem adding SQL comments to indicate the origin of the SQL

counter. Ruby

rails_autolink. The auto_link function from Rails

zed. Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

graphlient. Ruby GraphQL Client

require-hooks. Require Hooks provides infrastructure for intercepting require/load calls in Ruby

solid_cache. A database-backed ActiveSupport::Cache::Store

acidic_job. 🧪 Durable execution workflows for Active Job

litestack. Ruby

vernier. 📏 next generation CRuby profiler

gemstash. A RubyGems.org cache and private gem server

globalid. Identify app models with a URI

postgres-language-server. A Language Server for Postgres

webauthn-json. 🔏 A small WebAuthn API wrapper that translates to/from pure JSON using base64url.

mongo-vs-pg-large-table-performance. Ruby

rubyevents. On a mission to index all Ruby events.

rehype-pretty-code. Beautiful code blocks for Markdown or MDX.

shiki. A beautiful yet powerful syntax highlighter

parallel_tests. Ruby: 2 CPUs = 2x Testing Speed for RSpec, Test::Unit and Cucumber

tree-sitter. An incremental parsing system for programming tools

starship. ☄🌌️ The minimal, blazing-fast, and infinitely customizable prompt for any shell!

dry-credentials. A mixin to use encrypted credentials in your classes

connection_pool. Generic connection pooling for Ruby

batch-loader. :zap: Powerful tool for avoiding N+1 DB or HTTP queries

jekyll-seo-tag. A Jekyll plugin to add metadata tags for search engines and social networks to better index and display your site's content.

prism. Prism Ruby parser

singed. Get a flamegraph anywhere in your code base. Powered by stackprof, rbspy, and speedscope

passkeys.dev. source for the passkeys.dev developer site

webauthn. Web Authentication: An API for accessing Public Key Credentials

rack_session_access. Rack middleware that provides access to rack.session environment

job-iteration. Makes your background jobs interruptible and resumable by design.

vite. Next generation frontend tooling. It's fast!

light_blog. LightBlog: a file-based blog app written in Ruby

jwt_sessions. XSS/CSRF safe JWT auth designed for SPA

rb-sys. Easily build Ruby native extensions in Rust

vite_ruby. ⚡️ Vite.js in Ruby, bringing joy to your JavaScript experience

paranoia. acts_as_paranoid for Rails 5, 6 and 7

by. Ruby Library Preloader

im. Isolated Module Autoloader for Ruby

authentication-zero. An authentication system generator for Rails applications.

standard. Ruby's bikeshed-proof linter and formatter 🚲

reline. The compatible library with the API of Ruby's stdlib 'readline'

guides. Hanami Guides

ruby-openai. OpenAI API + Ruby! 🤖❤️ GPT-5 & Realtime WebRTC compatible!

railsdevs.com. The reverse job board for Ruby on Rails developers.

ruby-lsp. An opinionated language server for Ruby

literal_enums. Ruby Enums with a literal-style syntax.

rodauth-oauth. (Mirror) Roda OAuth and OpenID provider plugin

hotkey. Trigger an action on an element with a keyboard shortcut.

dry-logger. Logging library

overmind. Process manager for Procfile-based applications and tmux

hanami-mailer. Mail for Ruby applications

listen. The Listen gem listens to file modifications and notifies you about the changes.

webauthn-ruby. WebAuthn ruby server library ― Make your Ruby/Rails web server become a conformant WebAuthn Relying Party

roda-turbo. Turbo Streams support for Roda.

spy. A simple opinionated mocking framework. All the features of rspec-mocks and more in half the code.

ruby-argon2. A Ruby gem offering bindings for Argon2 password hashing

cutoff. Deadlines for Ruby

lightningcss. An extremely fast CSS parser, transformer, bundler, and minifier written in Rust.

activerecord-trilogy-adapter. Active Record adapter for the Trilogy database client for Rails v6.0 - v7.0.

trilogy. Trilogy is a client library for MySQL-compatible database servers, designed for performance, flexibility, and ease of embedding.

sidekiq-limit_fetch. A Sidekiq plugin to support advanced queue control (limiting, pausing, blocking, querying)

turbo-rails. Use Turbo in your Ruby on Rails app

turbo. The speed of a single-page web application without having to write any JavaScript

rodauth-select-account. (Mirror) Support logging into multiple accounts in the same session, using rodauth

safely. Rescue and report exceptions in non-critical code

gh-dash. A rich terminal UI for GitHub that doesn't break your flow.

ripper-tags. fast, accurate ctags generator for ruby source code using Ripper

jsonhero-web. JSON Hero is an open-source, beautiful JSON explorer for the web that lets you browse, search and navigate your JSON files at speed. 🚀. Built with 💜 by the Trigger.dev team.

Bumbler. Track the load progress of your Bundler-based projects

magnus. Ruby bindings for Rust. Write Ruby extension gems in Rust, or call Ruby from Rust.

zimfw. Zim Framework: The Zsh configuration framework with blazing speed and modular extensions.

page_title_helper. Simple, internationalized and DRY page titles and headings for Rails.

gem-compare. A RubyGems plugin that compares versions of the given gem

combustion. Simple, elegant testing for Rails Engines

hanami-2-application-template. Hanami 2 application starter template

tantiny. Tiny full-text search for Ruby powered by Tantivy