koic
@rubocop core team.
Funding Links: https://github.com/sponsors/koic
- Name: Koichi ITO
- Location: Tokyo, Japan
- Company: ESM, Inc. (@esminc)
- Kind: user
- Followers: 405
- Following: 0
- Total stars: 192
- Repositories count: 288
- Created at: 2022-11-02T20:18:17.003Z
- Updated at: 2025-05-07T21:02:10.874Z
- Last synced at: 2025-05-07T21:02:10.873Z
GitHub Sponsors Profile
OSS maintainer.
A member of RuboCop core team and the first place maintainer:
https://github.com/rubocop/rubocop/graphs/contributors
The head maintainer for key RuboCop extensions:
RuboCop Performance
RuboCop Rails
RuboCop Minitest
I also maintain the vscode-rubocop extension related to the RuboCop's built-in LSP server.
These are presentations on the core features I have worked on in RuboCop in recent years:
Integration of server mode (RubyKaigi 2022)
Integration of LSP and Prism (RubyKaigi 2024)
Integration of Plugin, Ruby LSP Add-on, and Reusable AST (RubyKaigi 2025)
A committer for these open source software products:
Parser
WebMock
test-queue
Active Record Oracle enhanced adapter
Faker
RVM
I spend a lot of my life every day developing open source software and triaging issues. Support through GitHub Sponsors is one of feedback ways to these activities. Thank you!
- Current Sponsors: 21
- Past Sponsors: 37
- Total Sponsors: 58
- Minimum Sponsorship: $1.00
Featured Works
rubocop/rubocop
A Ruby static code analyzer and formatter, based on the community Ruby style guide.
Language: Ruby - Stars: 12736rubocop/rubocop-rails
A RuboCop extension focused on enforcing Rails best practices and coding conventions.
Language: Ruby - Stars: 840whitequark/parser
A Ruby parser.
Language: Yacc - Stars: 1612bblimke/webmock
Library for stubbing and setting expectations on HTTP requests in Ruby.
Language: Ruby - Stars: 4015tmm1/test-queue
parallel test runner for CI environments
Language: Ruby - Stars: 576rsim/oracle-enhanced
Oracle enhaced adapter for ActiveRecord
Language: Ruby - Stars: 558Active Sponsors
Past Sponsors
Sponsor Breakdown
- User: 43
- Organization: 14
Active Sponsorships
View AllSponsorship Breakdown by Kind
- User: 2