Shared rubocop rules for the preferred Ruby coding style of @davidrunger

A YAML-based schema system for validating and transforming configuration data

Semantic differences for Ruby code changes

Evaluates adequacy, redundancy, and maintainability of Ruby test suites using coverage, checked coverage, mutation data, and test-smell analysis.

Gradual Typing for Ruby

Taski is a Ruby-based task runner currently under development. It allows you to define small, composable tasks along with the outputs they depend on. Taski statically resolves dependencies and executes tasks in the correct topological order, from the most dependent tasks first. It also supports r...

Tk interface

tep is a small Sinatra-style DSL targeting the Spinel AOT Ruby compiler. The translator turns a Sinatra-classic source file into a self-contained native binary -- ~80 KB on Linux, no Ruby runtime. Pre-alpha: primary purpose is exercising Spinel against real-world Ruby usage; the framework is the ...

Find untested Ruby code and generate tests with AI

Combines Ruby's native Coverage execution counts with Prism AST analysis to map per-test coverage onto semantic units (methods, branches, conditions), find redundant tests grouped by duplication type with confidence levels, and emit a removal patch — never deleting a test that would open a covera...

TNG (Test Next Generation) is a Rails gem that automatically generates comprehensive test files by analyzing your Ruby code using static analysis and AI. It supports models, controllers, and services with intelligent test case generation.

A mountable Rails engine that provides a beautiful web interface for viewing and understanding your Rails logs. Groups requests with their SQL queries and view renders, with real-time updates.

Assert state changes through multiple values for an object, enabling you to test complex state transitions in sequence with RSpec.

typespec_from_serializers helps you by automatically generating TypeSpec descriptions for your JSON serializers, allowing you typecheck your frontend code to ship fast and with confidence.

Enable verbose logging for Active Record migrations, regardless of configured log level. Monitor query speed, query execution, and overall progress when executing long running or otherwise risky migrations.

CLI tool to generate test files with Cloude 3.

Verity is a Ruby test framework built around a core principle: tests are executable data structures, not a nested DSL. Each test carries structured metadata (tags, timeout, resource declarations) used for CI filtering, parallel grouping, and scheduling. Execution uses process-level forking with a...

why-classes is a linter and refactoring tool inspired by Dave Thomas's talk on the over-use of classes in Ruby. It scans a Ruby/Rails codebase (or a single file) for "class smells" -- stateless singleton-method classes, function buckets, invalid initial state, fat-base inheritance, and data bucke...

Woods extracts structured data from Rails applications for use in AI-assisted development tooling. It provides version-specific context by running inside Rails to leverage runtime introspection, inlining concerns, mapping routes to controllers, and indexing the exact Rails/gem source versions in ...

Convert YARD documentation into RBS files