Bump ruby_llm from 1.6.2 to 1.9.0

[dependabot]

Bumps ruby_llm from 1.6.2 to 1.9.0.

Release notes

Sourced from ruby_llm's releases.

1.9.0

RubyLLM 1.9.0: Tool Schemas, Prompt Caching & Transcriptions ✨🎙️

Major release that makes tool definitions feel like Ruby, lets you lean on Anthropic prompt caching everywhere, and turns audio transcription into a one-liner—plus better Gemini structured output and Nano Banana image responses.

🧰 JSON Schema Tooling That Feels Native

The new RubyLLM::Schema params DSL supports full JSON Schema for tool parameter definitions, including nested objects, arrays, enums, and nullable fields.

class Scheduler < RubyLLM::Tool
  description "Books a meeting"
params do
object :window, description: "Time window to reserve" do
string :start, description: "ISO8601 start"
string :finish, description: "ISO8601 finish"
end
array :participants, of: :string, description: &quot;Email invitees&quot;
any_of :format, description: &quot;Optional meeting format&quot; do
string enum: %w[virtual in_person]
null
end

end
def execute(window:, participants:, format: nil)
Booking.reserve(window:, participants:, format:)
end
end

• Powered by RubyLLM::Schema, the same awesome Ruby DSL we recommend to use for Structured Output's chat.with_schema.
• Already handles Anthropic/Gemini quirks like nullable unions and enums - no more ad-hoc translation layers.
• Prefer raw hashes? Pass params schema: { ... } to keep your existing JSON Schema verbatim.

🧱 Raw Content Blocks & Anthropic Prompt Caching Everywhere

When you need to handcraft message envelopes:

chat = RubyLLM.chat(model: "claude-sonnet-4-5")
raw_request = RubyLLM::Content::Raw.new([
  { type: "text", text: File.read("prompt.md"), cache_control: { type: "ephemeral" } },
  { type: "text", text: "Summarize today’s work." }
])
chat.ask(raw_request)

We also provide an helper specifically for Anthropic Prompt Caching:

... (truncated)

Commits

• be250ce Version bump to 1.9.0
• 57c8852 Fix Gemini schema conversion from JSON
• 593eef0 Use responseJsonSchema for Gemini 2.5 structured output (Fixes #478)
• 9e35e6a Fix Gemini parallel tool calls + tool results use role: "function"
• 18870af New RubyLLM::Schema/JSON schema powered params DSL for Tools
• cf27430 Removing gemfile locks for appraisal
• 1d03869 Added Rails 8.1 Appraisal gemfile
• 09d7312 Test on Rails 8.1
• 95829ca Added provider_class to Model::Info and Model's ActiveRecord integration
• aaece94 Updated appraisals
• Additional commits viewable in compare view

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[dependabot]

Superseded by #29.