The number of Ruby systems development projects, especially using Ruby on Rails framework, is now increasing dramatically. But, we can not say that the development environment surrounding Ruby is enough improved, compared with other current mature languages such as Java or C++. In this session we introduce our recent work on Ruby, and our prototype on integrated environment of static code analysis using ORM, Reek, and Roodi, to help programmers to write better quality code and to warn them of potential bugs in their code.