langchain-ai/langchainjs @langchain/aws@1.4.7

on GitHub

Patch Changes

• #11916 73a739c Thanks @zduric-langchain! - Report Bedrock thinking tokens as output_token_details.reasoning

  ChatBedrockConverse now accepts additionalModelResponseFieldPaths (constructor and call option, matching additional_model_response_field_paths in Python) and forwards it to Converse and ConverseStream. When the response includes Anthropic's native usage (additionalModelResponseFields.usage.output_tokens_details.thinking_tokens, returned when requesting ["/usage"]), the count is mapped to usage_metadata.output_token_details.reasoning for invoke(), .stream() and streamEvents(). output_tokens is unchanged, and nothing changes when the field is absent.