LiteLLM Router in LangChain: Missing Model Name and Cost in LangSmith Traces - 惯性聚合

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LangChain Forum - Latest topics

LangChain/LangGraph tool args validation middleware 404 on /api/langgraph/threads/{threadId}/commands when running assistant-ui-claude example Null-drift: A bare-metal O(1) Memory Store for continuous LangGraph agents Clarification needed: Assistant config vs context and graph initialization Built a Tigris checkpointer, where to put it? LangSmith cost/token attribution differs between LangGraph v2 streaming and v3 `astream_events` with Anthropic prompt caching Can your LangChain agent spend money without your permission? How are you enforcing hard spending limits on agents in production? [Feature] : Add ArabicTextSplitter with proper Arabic language boundary handling Best Practices for Dynamic User Modeling with LangGraph Proposal: a small local helper for readable run traces via PR Best Practices for Enforcing Tool Call Order in LangGraph? CopilotKit + LangGraph Agent Server (self-hosted): expected integration path without re-exposing graphs? Proxy Authentication Required 407 What is the right way to dynamically create and run a graph? Langsmith-fleet issue Proposal: Add an example for handling line-number hallucinations in AI Code Review workflows How to fix image SHA? How can I verify my runs have been queued for deletion via the API? 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Can a Fleet hosted agent be configured to hit my Langconnect RAG on GCP? Fleet issues.. churn-spin and correct link DeltaChannelHistory not found in langgraph-api:3.13 Interrupt parallel branch execution Governance/policy checkpoint node pattern for LangGraph agents Langsmith link is always making me login I thought client[.]runs[.]wait would actually return the result of my agent's work Best practices for self-hosting LangGraph Server OSS without LangGraph keys Dynamically Enabling/Disabling Graphs in a LangGraph Server at Runtime LangGraph thread copy can take 12+ minutes: recommended production pattern? Can Langgraph postgresql_checkpointer framework implement a function which could delete the latest user ask and some ai messages but not delete the thread_id？ I try to invoke my fleet agent but seems like my Next.js code can't read my api_key environment variable so i get 401 unauthenticated error Will DeltaChannel be the default for AgentState.messages, or expected to stay opt-in? Proposal: additional docs for implementing custom DB checkpointers or a guide on generic base checkpointer Langsmith Fleet Sandbox Failure Prompt_cache_retention: '24h' supported in langchain agents and where to provide it, inside invoke or while creating client? Langgraph deploy CLI cannot deploy to EU Langsmith Cloud Could RAG pipelines realistically cause deployment timeouts, is Render suitable for first-time RAG deployments? Getting 404 when clicking "Connect Github" on the Issues/Langsmith Engine tab How do I use langchain_postgres' init_vectorstore_table correctly? Proposal: Graph-wide default error handler for StateGraph (fallback for nodes without error_handler) Using LangChain for a simple capcut video workflow automation — is this reasonable? Support timedelta for CachePolicy.ttl, consistent with TimeoutPolicy The x402 illusion: Is advertising dead in the age of agents? 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CLI - No Longer Sending traces to Langsmith Connecting the Slack integration fails with invalid_team_for_non_distributed_app The Docs says open router can be used with init_chat_model but throws an error Interested to contribute to langgraph postgre checkpointer for multiple adapter support Modal Inference Trouble understanding and editing experiment summary evaluators feedbacks SSL certificate error from httpx with LangGraph server [Feature Request] Wire allowed_msgpack_modules in langgraph.json Serving an agent with the LangGraph CLI dev command Proposal: implement delete_for_runs for SQLite checkpoint savers WikipediaLoader endup in JSONDecodeError Human-in-the-loop approval dashboard for LangGraph agents — open source, free to deploy Ombre — open source security and audit layer for LangChain apps Should interrupt() be split into two primitives — one for human input, one for s2s data fetching? Unable to delete runs from annotation queue First Bedrock call after idle is slow on TTFT (follow-ups in the same trace are fast) How are people handling data governance across agent handoffs in production? CLI: Read pdf is failing with DeepAgents CLI How can I submit a small fix for API token management in the community Jira toolkit? Feature Request: Driver abstraction for checkpoint-postgres: to build support for asyncpg and other adapters .Interested to contribute to langgraph (python)

LiteLLM Router in LangChain: Missing Model Name and Cost in LangSmith Traces

VettHor · 2026-04-14 · via LangChain Forum - Latest topics

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