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convert_to_openai_functionraisesAttributeErrorfor callables unlesslangchain_core.toolswas importedbugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#39749 In langchain-ai/langchain;Streamed refusals are dropped, so structured output raises a generic
ValueErrorinstead ofOpenAIRefusalErrorbugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featureopenai`langchain-openai` package issues & PRs`langchain-openai` package issues & PRsStatus: Open.#39747 In langchain-ai/langchain;ListOutputParser and XMLOutputParser streaming silently drop messages with list content
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.Prompt templates silently misrender or reject non-
dictMappinginputs (ChainMap,MappingProxyType,UserDict)bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#39743 In langchain-ai/langchain;langchain-profiles refresh corrupts strings containing JSON literal substrings
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featuremodel-profiles`langchain-model-profiles` package issues & PRs`langchain-model-profiles` package issues & PRsStatus: Open.#39739 In langchain-ai/langchain;Tool schemas and invocation diverge for valid Pydantic and Python signatures
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.ChatAnthropic(stream_usage=False)also dropsstop_reason,stop_sequenceandmodel_namefromresponse_metadata, not just usage metadataanthropic`langchain-anthropic` package issues & PRs`langchain-anthropic` package issues & PRsbugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featureStatus: Open.#39713 In langchain-ai/langchain;ShellToolMiddleware leaks subprocess and temp directory when agent is interrupted and never reaches after_agent
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurelangchain`langchain` package issues & PRs`langchain` package issues & PRsStatus: Open.#39700 In langchain-ai/langchain;Bug: count_tokens_approximately inflates estimates 5-10x for reasoning/thinking blocks
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#39697 In langchain-ai/langchain;ChatAnthropic streaming on thinking-by-default models (claude-opus-5/sonnet-5) yields malformed content; replaying it 400s the next turn
anthropic`langchain-anthropic` package issues & PRs`langchain-anthropic` package issues & PRsbugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featureStatus: Open.#39687 In langchain-ai/langchain;dumps()/dumpd() raise TypeError for any dict that has an "lc" key alongside a non-JSON-native value (e.g. datetime)
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#39677 In langchain-ai/langchain;AsyncCallbackManager.on_llm_start drops non-inline handlers when an inline handler is registered
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#39633 In langchain-ai/langchain;