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cannot import AIMessage from langchain.messages

bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing feature

Status: Open.

Bug

#33770 In langchain-ai/langchain;

· mcavdar opened on Oct 31, 2025

The issue with the list formatting string type caused the llm call to fail—the JSON in the request body was non-compliant.

bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing feature

Status: Open.

Bug

#33758 In langchain-ai/langchain;

· 7487 opened on Oct 31, 2025

Support cache_control for ChatOpenAI

feature requestrequest for an enhancement / additional functionalityrequest for an enhancement / additional functionality

Status: Open.

Feature

#33757 In langchain-ai/langchain;

· jingyugao opened on Oct 31, 2025

create_agent 'name' always None

bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing feature

Status: Open.

Bug

#33754 In langchain-ai/langchain;

· kalyangoparajuansys opened on Oct 31, 2025

Unable to inject tool call id into tool when using LLM with bound tools and structured outputs simultaneously

bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing feature

Status: Open.

Bug

#33744 In langchain-ai/langchain;

· tsmith-perchgroup opened on Oct 30, 2025

Unified Structured Output and Tool-Calling Interface in BaseChatModel

feature requestrequest for an enhancement / additional functionalityrequest for an enhancement / additional functionality

Status: Open.

Feature

#33743 In langchain-ai/langchain;

· riunyfir opened on Oct 30, 2025

Wrap code blocks in documentation for better readability

feature requestrequest for an enhancement / additional functionalityrequest for an enhancement / additional functionality

Status: Open.

Feature

#33742 In langchain-ai/langchain;

· val461 opened on Oct 30, 2025

GraphRecursionError when adding multiple custom PIIMiddleware

bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing feature

Status: Open.

Bug

#33740 In langchain-ai/langchain;

· Nathanv784 opened on Oct 30, 2025

<code>create_agent</code> generic state type hints update

feature requestrequest for an enhancement / additional functionalityrequest for an enhancement / additional functionality

Status: Open.

Feature

#33732 In langchain-ai/langchain;

· LouisAuneau opened on Oct 29, 2025

Allow passing only a subset of the state in the ToolRuntime

feature requestrequest for an enhancement / additional functionalityrequest for an enhancement / additional functionality

Status: Open.

Feature

#33727 In langchain-ai/langchain;

· rahul-langchain opened on Oct 29, 2025

Add RunnableConfig Access in Agent Middleware Functions

feature requestrequest for an enhancement / additional functionalityrequest for an enhancement / additional functionality

Status: Open.

Feature

#33726 In langchain-ai/langchain;

· beastrog opened on Oct 29, 2025

Recover config in create_agent with Middleware

feature requestrequest for an enhancement / additional functionalityrequest for an enhancement / additional functionality

Status: Open.

Feature

#33721 In langchain-ai/langchain;

· darocarr-inditex opened on Oct 29, 2025