docs: update main README React agent example for LangGraph #6492
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
The langgraph.prebuilt.create_react_agent import and API were deprecated in LangGraph. Replace it with the current, maintained langchain.agents.create_agent. Also update the deprecated `prompt=` argument to the correct `system_prompt=` parameter.
|
Someone is attempting to deploy a commit to the LangChain Team on Vercel. A member of the Team first needs to authorize it. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The
langgraph.prebuilt.create_react_agentimport and itsprompt=argument were officially deprecated in LangGraph(November 2025). The recommended and maintained path forward is nowlangchain.agents.create_agent.This PR updates the primary quickstart example in the README to:
from langchain.agents import create_agentprompt=with correctsystem_prompt=The example remains functionally identical (still prints "It's always sunny in sf!") but now reflects current best practices and works out-of-the-box with the latest versions of
langchainandlanggraph.