LangChain Forum

Topic	Replies	Views	Activity
Post Identification and Tags LangSmith Product Help self-hosted , hybrid , cloud , langsmith-studio , product-feedback Tag your post in the Help > Lang* product subcategory to ensure the right experts are looking at your issue or question, e.g. cloud, hybrid, or self-hosted.	1	429	April 25, 2025
Inaccurate results from the SQL agent tutorial LangChain Academy js-help	3	8	April 4, 2026
Bogus warning messages after upgrading dependencies which could have security impact if not addressed LangGraph python-help	1	2	April 4, 2026
`PydanticDeprecatedSince20: The `dict` method is deprecated; use `model_dump` instead. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.12/migration/` LangSmith Product Help python-help	6	7	April 4, 2026
`Failed to use model_dump to serialize <class 'langchain_core.tools.structured.StructuredTool'> to JSON: PydanticSerializationError(Unable to serialize unknown type: <class 'pydantic._internal._model_construction.ModelMetaclass'>)` LangChain python-help	5	6	April 4, 2026
Python Invocation of Agent - Inbox Edit Files, not the expected response Fleet	1	8	April 4, 2026
Chat LangChain sounds like a really good thing but works terribly wrong LangChain js-help	2	45	April 3, 2026
Created an awesome agent using the agent builder, what's next? Fleet cloud	1	50	April 3, 2026
Fleet and Langmsith - No output in the Trace Fleet	2	15	April 3, 2026
Tool.func typing LangChain python-help	3	23	April 3, 2026
Configure base URL / path prefix for LangGraph Agent Server behind reverse proxy LangSmith Product Help self-hosted	9	31	April 3, 2026
`anyio.CancelScope(shield=True)` not working inside langgraph node LangGraph self-hosted , python-help	1	13	April 3, 2026
LangSmith Cloud Deployment Intermittent Issue Deployment cloud	8	25	April 3, 2026
ArkSim: a Testing framework for LangChain/LangGraph Talking Shop	1	87	April 2, 2026
Handling Non-PDF File Attachments in LangChain HumanMessage LangGraph python-help	1	14	April 2, 2026
[FEATURE-REQUEST] Ability to add builtin tools in Prompt Playground/Evaluations Observability & Evals feature-request	0	4	April 1, 2026
How are teams handling evals when agent pipelines span multiple LangSmith projects? Observability & Evals product-feedback , python-help	1	14	April 1, 2026
Can I get User IDs and Bot IDs of bots used in Slack channels for personal projects OSS Product Help intro-to-langgraph	1	16	April 1, 2026
Are we missing an "execution evidence" layer beyond traces and logs? LangSmith Product Help ambient-agents-with-	9	41	April 1, 2026
[Feature request] YDB vector store integration LangChain js-help	0	8	March 31, 2026
Architectural Help For Production Chat App LangChain self-hosted , js-help	8	58	March 31, 2026
Trace-to-Fix: how are you actually improving RAG/agents after observability flags issues? Observability & Evals	1	27	March 31, 2026
[Docs/Cookbook] Request to add a design pattern for "Package-Skill" with internal retries Talking Shop intro-to-langgraph	1	26	March 31, 2026
Should we organize the file structure under the deepagentcli directory？ Deep Agents	5	26	March 31, 2026
Langgraph RemoteGraph LangGraph self-hosted , python-help	4	531	March 30, 2026
Guarding tool calls against prompt injection / exfiltration LangGraph python-help	3	80	March 30, 2026
Removing some default middleware from deepagents Deep Agents	1	11	March 30, 2026
Using the useStream frontend API with custom FastAPI backend LangChain self-hosted , intro-to-langgraph , python-help	4	58	March 30, 2026
I previously released a new GitHub Copilot chat model integration Talking Shop	2	10	March 31, 2026
DeepAgents CLI: Do subagents have to be defined in Python, or can they be defined via YAML? Deep Agents python-help	2	13	March 30, 2026

Post Identification and Tags

Tag your post in the Help > Lang* product subcategory to ensure the right experts are looking at your issue or question, e.g. cloud, hybrid, or self-hosted.