girb-gemini

Google Gemini LLM provider for girb (AI-powered IRB assistant).

日本語版 README

Add to your Gemfile:

group :development do
  gem 'girb-gemini'
end

Then run:

bundle install

Create a .girbrc file in your project root:

# .girbrc
require 'girb-gemini'

Girb.configure do |c|
  c.provider = Girb::Providers::Gemini.new(
    api_key: ENV['GEMINI_API_KEY'],
    model: 'gemini-2.5-flash'
  )
end

Now rails console will automatically load girb!

Install globally:

gem install girb girb-gemini

Create a .girbrc file in your project directory:

# .girbrc
require 'girb-gemini'

Girb.configure do |c|
  c.provider = Girb::Providers::Gemini.new(
    api_key: ENV['GEMINI_API_KEY'],
    model: 'gemini-2.5-flash'
  )
end

Then use girb command instead of irb.

Set your API key as an environment variable:

export GEMINI_API_KEY=your-api-key

• gemini-2.5-flash (default) - Fast and efficient
• gemini-2.5-pro - More capable, slower
• gemini-3-flash-preview - Next generation, fast
• gemini-3-pro-preview - Next generation, more capable

girb-gemini includes a built-in web search tool powered by Google Search. This allows the AI to retrieve up-to-date information during your IRB session.

Web search is enabled by default. To disable it:

Girb.configure do |c|
  c.provider = Girb::Providers::Gemini.new(
    api_key: ENV['GEMINI_API_KEY'],
    model: 'gemini-2.5-flash',
    google_search: false
  )
end

For the girb command, you can also configure via environment variables (used when no .girbrc is found):

export GIRB_PROVIDER=girb-gemini
export GIRB_MODEL=gemini-2.5-flash  # optional, defaults to gemini-2.5-flash
export GEMINI_API_KEY=your-api-key
girb

MIT License