Getting Started

Install the unreleased source gem and run a read-only operation with its offline backend.

After reading this guide, you will know:

  • How to install the current source version.
  • How to run Inspect and Extract without a provider or network request.
  • Where to review live-provider limitations.

Installation

The gem is not published to RubyGems. Install it from the default branch:

bundle add ruby_llm-browser --git https://github.com/yorzi/ruby_llm-browser --branch main

Use Ruby 3.2 or later. The gem supports RubyLLM >= 2.0, < 3 and pins Stagehand to the 3.21.x series. Rails is optional and is not loaded by the core entry point. See configuration for host-owned settings.

Run a Read-only Operation Offline

This complete example needs no credentials and makes no network request. Its resolver returns a public test address so URL policy can be exercised without DNS.

require "ruby_llm/browser"

class OfflineResolver
  def getaddresses(_host) = [ "93.184.216.34" ]
end

context = RubyLLM::Browser::Context.new(
  actor_id: "demo-actor", run_id: "demo-run",
  backend: RubyLLM::Browser::FakeBackend.new,
  source_policy: RubyLLM::Browser::Policy.new(
    allowed_hosts: [ "docs.example.com" ], resolver: OfflineResolver.new
  ),
  operation_store: RubyLLM::Browser::InMemoryOperationStore.new
)
schema = {
  "type" => "object",
  "properties" => { "title" => { "type" => "string" } },
  "required" => [ "title" ], "additionalProperties" => false
}

inspect_tool = RubyLLM::Browser::Inspect.new(context: context)
extract_tool = RubyLLM::Browser::Extract.new(context: context, schema: schema)
puts inspect_tool.execute(url: "https://docs.example.com/")[:status] # => ok
puts extract_tool.execute(url: "https://docs.example.com/")[:data]   # => {"title"=>"Example"}

FakeBackend supplies deterministic responses. Replace it with a host-qualified backend only after you have reviewed the security boundaries.

Next Steps