langchain-ai/langchainjs @langchain/xai@1.3.0

on GitHub

Minor Changes

• #9890 e3ea086 Thanks @hntrl! - feat(xai): add server-side agentic tools and deprecate live_search

  Added new xAI server-side agentic tools for the Responses API:

  • xaiWebSearch(): Web search with domain filtering and image understanding
  • xaiXSearch(): X (Twitter) search with handle filtering, date ranges, and media understanding
  • xaiCodeExecution(): Python code execution for calculations and analysis
  • xaiCollectionsSearch(): Search through uploaded knowledge bases (vector stores)

  Also:

  • Deprecated xaiLiveSearch() with migration guidance to new tools
  • Added tools support to ChatXAIResponses constructor and call options
  • Updated XAIResponsesWebSearchTool type with correct filtering options

Patch Changes

• #9900 a9b5059 Thanks @hntrl! - Improved abort signal handling for chat models:

  • Added ModelAbortError class in @langchain/core/errors that contains partial output when a model invocation is aborted mid-stream
  • invoke() now throws ModelAbortError with accumulated partialOutput when aborted during streaming (when using streaming callback handlers)
  • stream() throws a regular AbortError when aborted (since chunks are already yielded to the caller)
  • All provider implementations now properly check and propagate abort signals in both _generate() and _streamResponseChunks() methods
  • Added standard tests for abort signal behavior

• #9900 a9b5059 Thanks @hntrl! - fix(providers): add proper abort signal handling for invoke and stream operations

  • Added early abort check (signal.throwIfAborted()) at the start of _generate methods to immediately throw when signal is already aborted
  • Added abort signal checks inside streaming loops in _streamResponseChunks to return early when signal is aborted
  • Propagated abort signals to underlying SDK calls where applicable (Google GenAI, Google Common/VertexAI, Cohere)
  • Added standard tests for abort signal behavior in @langchain/standard-tests

  This enables proper cancellation behavior for both invoke and streaming operations, and allows fallback chains to correctly proceed to the next runnable when the previous one is aborted.

• #9889 b303711 Thanks @hntrl! - feat(xai): add baseURL option to ChatXAI

  Added baseURL configuration option to ChatXAI class, allowing users to override the default xAI API endpoint. This is useful for connecting to custom endpoints, proxies, or alternative API-compatible services.

• Updated dependencies [1fa865b, 28efb57, 4e42452, a9b5059, a9b5059]:

  • @langchain/openai@1.2.4