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LangChain Forum - Latest posts

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 How to build a custom subagent which by itself a langgraph graph which have its own schema? 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? 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How can I verify my runs have been queued for deletion via the API? 3rd party rate limit handling(OpenAI-level rate limiting in LangChain.js) How to define a correct state for multi-agent system Response Format Groq Model Pydantic I hope to get some recommendations for practical skills [Feature]: MetacognitiveGate node — source-aware instruction checking before tool execution Is there a limit on runs deleted by /api/v1/runs/delete when using filtered metadata Access to Langsmith Engine Beginner questions & Troubleshooting: RAG Best practices for Mail Automation Interrupt does not work correctly in LangGraph The Qwen3.6b model in fireworks through initchatmodel reporting hugely inflated tokens For parallel execution in Node, should i use the functional API？ Potential Enhancement: Django-Managed PostgresSaver Pre-interrupt() code re-runs on resume — anti-pattern, or is there a sanctioned way to detect resume? Can a Fleet hosted agent be configured to hit my Langconnect RAG on GCP? 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Feature Request: @task metadata Research: Friction Points in Agentic Commerce Transactions 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 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)
Built NORNR for spend governance in agent workflows
Love · 2026-04-20 · via LangChain Forum - Latest posts
We built NORNR for teams running agent workflows that are getting close to real spend on APIs, compute, or ve…

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