build(deps): bump ruby_llm from 1.3.1 to 1.6.0

[dependabot]

Bumps ruby_llm from 1.3.1 to 1.6.0.

Release notes

Sourced from ruby_llm's releases.

1.6.0

RubyLLM 1.6.0: Custom Headers, Tool Control, and Provider Classes 🚀

Unlock provider beta features, build sophisticated agent systems, and enjoy a cleaner architecture. Plus a complete documentation overhaul with dark mode!

✨ Custom HTTP Headers

Access cutting-edge provider features that were previously off-limits:

# Enable Anthropic's beta streaming features
chat = RubyLLM.chat(model: 'claude-3-5-sonnet')
      .with_headers('anthropic-beta' => 'fine-grained-tool-streaming-2025-05-14')
Works with method chaining
response = chat.with_temperature(0.5)
.with_headers('X-Custom-Feature' => 'enabled')
.ask("Stream me some tool calls")

Your headers can't override authentication - provider security always wins. As it should be.

🛑 Tool Halt: Skip LLM Commentary (When Needed)

For rare cases where you need to skip the LLM's helpful summaries, tools can now halt continuation:

class SaveFileTool < RubyLLM::Tool
  description "Save content to a file"
  param :path, desc: "File path"
  param :content, desc: "File content"
def execute(path:, content:)
File.write(path, content)
halt "Saved to #{path}"  # Skip the "I've successfully saved..." commentary
end
end

Note: Sub-agents work perfectly without halt! The LLM's summaries are usually helpful:

class SpecialistAgent < RubyLLM::Tool
  description "Delegate to specialist for complex questions"
  param :question, desc: "The question to ask"
def execute(question:)
expert = RubyLLM.chat(model: 'claude-3-opus')
expert.ask(question).content  # Works great without halt
# The router will summarize the expert's response naturally
</tr></table>

... (truncated)

Commits

• 1a0ba26 docs: Fix openai_use_system_role documentation and merge sections
• fea9232 docs: Update version labels to green and fix Rubocop offense
• 6d15549 chore: Bump version to 1.6.0 and update VCR cassettes
• 5c8a8a8 test: Add skips for legitimate provider limitations and fix Rubocop offenses
• 8c59e8e feat: Add streaming error handling for all providers
• 3e1f2b7 docs: Rewrite configuration guide for clarity and completeness
• 0076440 docs: Add with_headers documentation to Chat guide
• 177debc feat: Add with_headers method to Chat for custom HTTP headers
• d826941 Update documentation for limiting tool calls
• 107308d Add warning about breaking chat flow when limiting tool calls
• Additional commits viewable in compare view

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[dependabot]

Superseded by #39.