TypeProf performs a type analysis of non-annotated Ruby code. It abstractly executes input Ruby code in a level of types instead of values, gathers what types are passed to and returned by methods, and prints the analysis result in RBS format, a standard type description format for Ruby 3.0. This tool is planned to be bundled with Ruby 3.0.
Brakeman detects security vulnerabilities in Ruby on Rails applications via static analysis. This package declares gem dependencies instead of bundling them.
Aeon is an analysis tool to score the age of your bundles dependencies.