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LangChain Forum - Latest topics

Seeking help regarding the connection between Websocket and tool calls Tool invocation error with empty error message when using `InjectedState` + `Command` return in async tool How to use @langchain/react FileSystem middleware Using ChatSnowflake with agents DeltaChannelHistory not found in langgraph-api:3.12 Improving citation accuracy and reducing hallucinations in custom Parent-Child RAG pipeline (Gemma3:4B + FAISS+BM25 + Cross-encoder reranker) Built a live autonomous AI agent network using LangGraph-style economics — looking for feedback How are you validating LangChain agent output before it executes shell commands? Cross-site pattern pool for production agent failures — looking for 5 pilot teams (open spec, CC-BY-4.0) Metadata filter not filtering for alerts Using custom MCP servers with assistants How to use tool calling using ChatLlamaCpp and Gemma 4 E4B with create_agent? 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) Feature Request: @task metadata Research: Friction Points in Agentic Commerce Transactions 3 agent integration patterns for claim verification (verify-then-act, decompose-and-score, multi-agent supervisor) How should I provide an agent to a LangGraph server? Parallel astream() on the same compiled graph leaks messages between streams How I added claim verification to a LangChain agent in 5 minutes (with code) Interested in contributing a DynamoDB checkpointer for LangGraph.js A set of speculative ideas on treating LLM agents as interpreters with limited working memory, using externalized structures for reliable long-term project maintenance. Where should I define the name and description for subagents? Add Qdrant-backed checkpoint saver and memory store (langgraph-checkpoint-qdrant) The output content has been corrupted Incorrect `reasoning_effort` options in the UI A Minimal Receipt + Validator Pattern for Tool-Calling Agents Feature Request: Simple cryptographic provenance for who authorized what in LangGraph multi-agent graphs Using LangGraph interrupt for multi-step wizards with branching — right tool or wrong abstraction? Portable departure and admission records for LangChain agents Socratic Tools: Intelligent Agent Enhancement for LangChain Built NORNR for spend governance in agent workflows LangGraph + PostgreSQL: Chat history and summarization best practice Using SQLRecordManager multi-agent systems debugging agent-to-agent Proposal: Add save_local and load_local to USearch VectorStore (Feature Parity with FAISS) How are you handling agent security in production? (Identity, permissions, kill switch) RFC: Human delegation provenance for LangGraph multi-agent chains Tiny LangGraph -> Assay evidence sample from tasks v2 tool isolation between Skills: Bug: Cannot save edited prompt back to Prompt Hub after opening trace run in Playground Add faiss-node-native as async alternative vector store for FAISS Deep Agents: Clarify Multimodal (Image) Context Management and Compression Discussion about why LangGraph JS ToolNode doesn’t inject ToolRuntime.state like Python does, and what the correct workaround or intended design pattern is. xat-langchain: signed Agent-Signature headers on every tool call Help with local RAG pipeline – poor retrieval quality, wrong page numbers Building an AI networking agent (LangChain vs LangGraph vs Deep Agents)? LOGIC.md — declarative reasoning contracts that compile to LangGraph StateGraph Distinguishing internal vs final streamed chunks in Supervisor multi-agent architecture Machine-Readable Permissions for Web-Interacting Agents How do ContextEditingMiddleware and SummarizationMiddleware interact when used together?Combining ContextEditingMiddleware + SummarizationMiddleware — execution order and behavior when both trigger? How we add runtime security to LangChain agents in production What does recursionLimit actually count in createAgent? (LangChain JS) How to register type in langgraph Are there any frontends for interacting with a LangGraph agent? Langchain.schema is not available while using in python code In-place model update on a compiled create_agent and per-subagent model update for deep agents - is this possible? Physical control surface for AI agents — feedback wanted Feature Request: Image Input support for ChatMistralAI Cache disable in Deepagent Multiple response formats when creating agents? Unable to parse docstring from OpenAI schema Enable OpenTelemetry traces without sending data to LangSmith No cost displayed in LangSmith when using LiteLLM + LangGraph I had a few months Experience with across Agent deploys remotegraph calls - old/new dist runtime architecture Runs visiblty problem AI Agent Identity Management Framework How should I deploy a self-hosted multi-agent system? Free Self-hosted LangGraph Agent Server: how to separate API and queue workers using Docker New integration: langchain-w2a — LangChain tools for W2A-enabled websites When a LangChain run “looks right” but probably shouldn’t be trusted LiteLLM Router in LangChain: Missing Model Name and Cost in LangSmith Traces How to use subagent interrupt in streamEvent? BaseSandbox.write() fails if file already exists -- any way to overwrite? Gmail MCP Error -32603: Tool execution failed RuntimeError: Cannot patch execution_info before it has been set on LangGraph Cloud Fleet and Langmsith - No output in the Trace Inaccurate results from the SQL agent tutorial Handling Non-PDF File Attachments in LangChain HumanMessage [FEATURE-REQUEST] Ability to add builtin tools in Prompt Playground/Evaluations How are teams handling evals when agent pipelines span multiple LangSmith projects?
Support timedelta for CachePolicy.ttl, consistent with TimeoutPolicy
Chocolatine7 · 2026-05-12 · via LangChain Forum - Latest topics
Is your feature request related to a problem? CachePolicy lets you skip re-executing a node when its inputs h…