Class: Langchain::Assistant::LLM::Adapters::Anthropic

Inherits:
Base
  • Object
show all
Defined in:
lib/langchain/assistant/llm/adapters/anthropic.rb

Instance Method Summary collapse

Instance Method Details

#allowed_tool_choices ⇒ Object

Get the allowed assistant.tool_choice values for Anthropic



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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 64

def allowed_tool_choices
  ["auto", "any"]
end

#available_tool_names(tools) ⇒ Array<String>

Get the available tool function names for Anthropic

Parameters:

  • tools (Array<Hash>) —

    The tools

Returns:

  • (Array<String>) —

    The tool function names



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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 72

def available_tool_names(tools)
  build_tools(tools).map { |tool| tool.dig(:name) }
end

#build_chat_params(messages:, instructions:, tools:, tool_choice:, parallel_tool_calls:) ⇒ Hash

Build the chat parameters for the Anthropic API

Parameters:

  • messages (Array<Hash>) —

    The messages

  • instructions (String) —

    The system instructions

  • tools (Array<Hash>) —

    The tools to use

  • tool_choice (String) —

    The tool choice

  • parallel_tool_calls (Boolean) —

    Whether to make parallel tool calls

Returns:

  • (Hash) —

    The chat parameters



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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 16

def build_chat_params(
  messages:,
  instructions:,
  tools:,
  tool_choice:,
  parallel_tool_calls:
)
  params = {messages: messages}
  if tools.any?
    params[:tools] = build_tools(tools)
    params[:tool_choice] = build_tool_choice(tool_choice, parallel_tool_calls)
  end
  params[:system] = instructions if instructions
  params
end

#build_message(role:, content: nil, image_url: nil, tool_calls: [], tool_call_id: nil) ⇒ Messages::AnthropicMessage

Build an Anthropic message

Parameters:

  • role (String) —

    The role of the message

  • content (String) (defaults to: nil) —

    The content of the message

  • image_url (String) (defaults to: nil) —

    The image URL

  • tool_calls (Array<Hash>) (defaults to: []) —

    The tool calls

  • tool_call_id (String) (defaults to: nil) —

    The tool call ID

Returns:



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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 40

def build_message(role:, content: nil, image_url: nil, tool_calls: [], tool_call_id: nil)
  Langchain.logger.warn "WARNING: Image URL is not supported by Anthropic currently" if image_url

  Messages::AnthropicMessage.new(role: role, content: content, tool_calls: tool_calls, tool_call_id: tool_call_id)
end

#build_tools(tools) ⇒ Object

Build the tools for the Anthropic API



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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 59

def build_tools(tools)
  tools.map { |tool| tool.class.function_schemas.to_anthropic_format }.flatten
end

#extract_tool_call_args(tool_call:) ⇒ Array

Extract the tool call information from the Anthropic tool call hash

Parameters:

  • tool_call (Hash) —

    The tool call hash, format: “id”=>“toolu_01TjusbFApEbwKPRWTRwzadR”, “name”=>“news_retriever__get_top_headlines”, “input”=>{“country”=>“us”, “page_size”=>10}], “stop_reason”=>“tool_use”}

Returns:

  • (Array) —

    The tool call information



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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 50

def extract_tool_call_args(tool_call:)
  tool_call_id = tool_call.dig("id")
  function_name = tool_call.dig("name")
  tool_name, method_name = function_name.split("__")
  tool_arguments = tool_call.dig("input").transform_keys(&:to_sym)
  [tool_call_id, tool_name, method_name, tool_arguments]
end

#support_system_message? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 80

def support_system_message?
  Messages::AnthropicMessage::ROLES.include?("system")
end

#tool_role ⇒ Object 



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# File 'lib/langchain/assistant/llm/adapters/anthropic.rb', line 76

def tool_role
  Messages::AnthropicMessage::TOOL_ROLE
end