Automatically handles tool execution loop changedcli-sdks-libraries/sdks/ruby
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8181## Input schema and tool calling
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83The SDK provides helper mechanisms to define structured data classes for tools and let Claude automatically run them. For detailed documentation on tool use patterns including the tool runner, see [Tool Runner (SDK)](https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-runner).
83The SDK provides helper mechanisms to define structured data classes for tools and let Claude automatically run them. For detailed documentation on tool use patterns including the tool runner, see [Tool runner (SDK)](https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-runner).
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8585```ruby
8686anthropic = Anthropic::Client.new
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