Worked on the ruby/ruby repository to enhance security and reliability in gem caching workflows. Addressed a bug by implementing a secure gemspec caching process that prevents execution of shell-out commands during caching, thereby reducing potential risks and improving build determinism. Reintroduced a previously removed pre-evaluated gemspec test to strengthen regression coverage and ensure that future changes do not reintroduce vulnerabilities. Focused on improving the reliability of downstream RubyGems workflows and contributing to continuous integration stability. Utilized Ruby as the primary language, with Bundler and RubyGems as core technologies, and emphasized robust testing practices throughout the development process.