A small pure Ruby image editor for color, filter, composite, annotation, and batch operations on PNG, PPM, and BMP images.

Rigor plugin and CLI that extract Ruby class/module/constant dependencies (inheritance, include/prepend/extend, constant references) and emit Graphviz DOT, SVG, and Mermaid output. The class/module-level counterpart to Packwerk/Graphwerk.

Roboticist helps Ruby developers keep their FactoryBot factories clean and efficient. It provides tools to detect unused traits, find slow factories, identify circular dependencies, and suggest performance optimizations. The gem includes a CLI for easy integration into development workflows and C...

A RuboCop plugin implementing comment-as-command for one-off codemod, inspired by eslint-plugin-command.

RuboCop cops to check RBS signatures

Ruby gem providing RubyGems and Ruby version information via MCP server tools. Integrates with Cursor IDE via Model Context Protocol.

Parser for ruby.h

A list of words from the Ruby programming language

Language server for Ruby.

rush implements the POSIX.1-2017 Shell Command Language (IEEE Std 1003.1 §2) in pure Ruby, verified differentially against dash.

Library to support the reading and writing of zip files. A wrapper of Rust's zip crate.

Ryac minifies Ruby source code using Prism AST transformations and TypeProf type inference. It bundles a program's require_relative and autoload graph into one file (dynamic requires become lazy regions), compacts and folds the AST, renames constants, variables and methods with compatibility alia...

Change files and create patches

Ruby gem providing ScoutAPM API client and MCP server tools for fetching traces, endpoints, metrics, errors, and insights. Integrates with Cursor IDE via Model Context Protocol.

Capture clean, production-ready website screenshots from Ruby applications with the official Screenshot Scout SDK.

Ruby gem providing a SearXNG HTTP client, CLI (search), and MCP server for web search. Integrates with Cursor IDE via Model Context Protocol.

SecretSweep scans a codebase (and optionally its full git history) for leaked secrets — API keys, tokens, private keys — using a combination of known-format regex patterns and Shannon entropy analysis for unknown formats. Pure Ruby standard library, zero runtime dependencies.

Extension for ActiveRecord to organize seeds in a directory and generate them as migrations

Semantic differences for Ruby code changes

An AI-powered pair programmer. Provides a user-friendly interface for using AI API's to automatically repair broken code and suggest improvements. Simply provide the faulty code as input, and the gem will generate a corrected version using advanced machine learning techniques.