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Error in RootListenersTracer.on_chain_end callback: ValueError("Expected str, BaseMessage, list[BaseMessage], or tuple[BaseMessage]. Got {'messages': [AIMessage()
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3
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161
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January 21, 2026
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Context is not accessible
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8
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123
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January 20, 2026
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We implemented Anthropic's Skills approach using LangChain v1, feedbacks
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7
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1828
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January 20, 2026
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How to use InjectedToolArg in AgentExecutor
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7
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871
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January 19, 2026
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How to make my langchain chatbot to render the markup?
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2
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35
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January 22, 2026
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Help with MultiServerMCPClient tool interceptor / runtime
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5
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250
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January 14, 2026
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Timestamps and strings in concatenated streaming responses are added
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1
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80
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January 13, 2026
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Deep Agent Filesystem vs Store Backend
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4
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318
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January 12, 2026
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Issues importing langchain.chains,langchain.prompts after installing LangChain v1(1.2.3) modular packages
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5
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1824
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January 12, 2026
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Request for Guidance: Reasoning Transparency After Migrating from `ZeroShotAgent` to `create_agent`
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1
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88
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January 12, 2026
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Whether LangChain’s SQLDatabase supports multiple schemas or only one
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2
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87
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January 12, 2026
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Agent with ChatHuggingFace LLM does not support both tools and response format?
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5
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162
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January 10, 2026
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Using LangChain's AzureAISearchVectorStore with Existing Azure AI Search Indexes
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4
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166
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January 8, 2026
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Harmony Response Format sometimes outputted when using gpt-oss-120b as an Agent
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9
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922
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January 5, 2026
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Exclude tools output from Summary middleware
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2
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189
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January 5, 2026
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Exploring intent-aware, multi-stage RAG architectures to improve the quality and balance of evaluation-focused LLM outputs.
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0
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81
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January 5, 2026
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Tool/Function Calling with Llama-3.2-3B-Instruct model (local)
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8
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492
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January 3, 2026
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How to change create_agent state from middleware during tool execution
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1
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248
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January 2, 2026
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Cannot access ToolRuntime in BaseTool subclass
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1
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152
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January 2, 2026
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Can we make parallel tool calls in create_agent, if yes how?If no, is there any way we can do?
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1
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219
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January 2, 2026
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Does Langchain run locally?
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3
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167
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December 30, 2025
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Kimi K2 Thinking with deepagents
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2
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671
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December 22, 2025
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How to propose a feature request and contribute to @langchain/google-genai?
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1
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100
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December 22, 2025
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Claude Sonnet 4.5 returning incomplete data on 2nd tool call, almost like a JSON Patch
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1
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145
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December 21, 2025
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Has anyone implemented Deepagents with a longterm memory like postgres?
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1
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223
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December 20, 2025
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Is it bad practice to create_agent all the time?
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6
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229
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December 20, 2025
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ChatHuggingFace + HuggingFacePipeline code never parses tool call code
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4
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311
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December 20, 2025
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Best Practices for Running LLM-Based Tests at Scale Without Hitting Rate Limits
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0
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72
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December 18, 2025
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[Feature Request]: Add maxReasoningTokens support to ChatGoogleGenerativeAI
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0
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73
|
December 18, 2025
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Bot Lagging In with_structured_output
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9
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355
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December 17, 2025
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