langchain-ai/langgraphjs

Framework to build resilient language agents as graphs.

Stars: 3.3k
Forks: 580
Open beginner issues: 0
Indexed issues: 86
Avg merge: 1d 1h
Merged PRs (30d): 56

Dominant language: TypeScript
License: MIT
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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86 open issues indexed

Complete support for DENO through ESM or other CDNs Open

enhancement

langchain-ai/langgraphjs#229 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Running in Firebase Function Open

enhancement

langchain-ai/langgraphjs#472 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Feature Request: Support for State Schema Versioning & Migration in LangGraph.js Open

enhancement

langchain-ai/langgraphjs#536 · 7 comments · 11 reactions · 0 assignees · Indexed Sep 18, 2026
`MongoDBSaver.*list` yields nothing when `options.filter` is defined, and fixing it requires a breaking change Open

bug

langchain-ai/langgraphjs#581 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
`SqliteSaver` ignores `newVersions` argument on `put` - not storing deltas Open

bug

langchain-ai/langgraphjs#594 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
`MongoDbSaver` ignores `newVersions` argument on `put` - not storing deltas Open

bug

langchain-ai/langgraphjs#595 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
The `batch` method is not implemented on `AsyncBatchedStore` Open

bug stale triage: high-impact

langchain-ai/langgraphjs#686 · 14 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Bug: Wrong graph visualization in studio with the new Command Open

bug

langchain-ai/langgraphjs#753 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Error when loading from checkpoint Open

bug

langchain-ai/langgraphjs#777 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Feature: ToolNode should support executing tools sequentially rather than in parallel. Open

enhancement

langchain-ai/langgraphjs#861 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
Multitask Strategy Does Not Work in /runs/wait for Langgraph JS Open

bug

langchain-ai/langgraphjs#864 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Feature request: Support features requiring async local storage (interrupt, functional API, etc) in web environment Open

enhancement

langchain-ai/langgraphjs#879 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Feature: interruptible tool handler functions Open

enhancement

langchain-ai/langgraphjs#992 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Missing Token Usage Metadata in LangChain Streaming Responses for `ChatOpenAI` and `ChatAnthropicAI` Open

bug

langchain-ai/langgraphjs#1219 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
llama on ChatGroq with disable_streaming set to true and ran through the "nostream" tag with response_format fails when using streamEvents Open

bug

langchain-ai/langgraphjs#1066 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
How do I keep data in Postgres checkpointer database from growing unbounded? Open

enhancement

langchain-ai/langgraphjs#1138 · 11 comments · 9 reactions · 0 assignees · Indexed Sep 18, 2026
[bug] Unexpected parallel node execution scheduled in graph with multiple interrupts. Open

bug

langchain-ai/langgraphjs#1141 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Send API serialize/deserialize issue Open

bug

langchain-ai/langgraphjs#1142 · 3 comments · 1 reaction · 2 assignees · Indexed Sep 18, 2026
400 BadRequestError when conversation starts with a tool_call (no assistant/system message) Open

bug

langchain-ai/langgraphjs#1147 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Async Generator Nodes: Body Not Executed, No Streaming of yields via streamEvents Open

enhancement

langchain-ai/langgraphjs#1158 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
prebuilt: `includeAgentName` and `withAgentName` won't work if provider disallows editing AIMessage history Open

bug

langchain-ai/langgraphjs#1178 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
`createReactAgent` enters infinite loop with `prompt` function and fails to return structured response with `stateSchema` defined Open

langchain-ai/langgraphjs#1207 · 1 comment · 3 reactions · 0 assignees · Indexed Sep 18, 2026
Simple example for tool calling with supervisor flow not working Open

bug triage: high-impact

langchain-ai/langgraphjs#1224 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
ValidationException: toolConfig field must be defined when using ChatBedrockConverse with no-tools agents in createSupervisor Open

bug

langchain-ai/langgraphjs#1269 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Silent crash when resuming after interrupt() — graph halts at second interrupt execution Open

bug triage: high-impact

langchain-ai/langgraphjs#1298 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
[BUG] "TypeError: promptMessage.inputVariables is not iterable" occurs on LangGraph Platform studio but not local studio Open

bug

langchain-ai/langgraphjs#1303 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
[Feature Request] Support client toolCall Open

enhancement

langchain-ai/langgraphjs#1305 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
Ambiguity in Anthropic Streaming Message IDs Open

bug

langchain-ai/langgraphjs#1321 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
the runnablConfig's trigger info in the new version lead to lacking essential info Open

question

langchain-ai/langgraphjs#1380 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Using zod 4.0 results in TypeScript error `not assignable to parameter of type 'never'` Open

bug

langchain-ai/langgraphjs#1472 · 3 comments · 6 reactions · 0 assignees · Indexed Sep 18, 2026
Possible EventTarget memory leak detected Open

bug

langchain-ai/langgraphjs#1494 · 0 comments · 4 reactions · 0 assignees · Indexed Sep 18, 2026
`recursionLimit` config ignored — still getting limit of 25 Open

langchain-ai/langgraphjs#1524 · 1 comment · 5 reactions · 0 assignees · Indexed Sep 18, 2026
LangGraph.js on LangGraph Platform, store's namespace is not hashable Open

bug

langchain-ai/langgraphjs#1611 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
can not use langgraph studio chat mode when i build the typescript to js using rsbuild Open

langchain-ai/langgraphjs#1533 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Resuming after NodeInterrupt using subgraphs seems buggy Open

langchain-ai/langgraphjs#1552 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
MongoDB CheckpointSaver: Support extending and persisting of extra fields documents Open

langchain-ai/langgraphjs#1666 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Tool call fails in LangGraph Studio because messages stream mode cannot be disabled Open

langchain-ai/langgraphjs#1667 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
I want to use WebBrowser now. Could you please tell me how to pass the no-stream parameter into it? Open

langchain-ai/langgraphjs#1698 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Trace checkpointer operations Open

langchain-ai/langgraphjs#1700 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
🐛 Bug Report: recursionLimit varying during graph execution Open

langchain-ai/langgraphjs#1738 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
langgraph-swarm and langgraph-supervisor cannot be used with createAgent from v1 Open

langchain-ai/langgraphjs#1739 · 6 comments · 6 reactions · 0 assignees · Indexed Sep 18, 2026
heap memory use increasing with langgraph invocations on node server Open

langchain-ai/langgraphjs#1746 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Langsmith Studio prompt playground unusable due to intense lag when typing Open

langchain-ai/langgraphjs#1759 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
createAgent can't be used as a StateGraph node - Python parity issue Open

langchain-ai/langgraphjs#1767 · 2 comments · 4 reactions · 0 assignees · Indexed Sep 18, 2026
Node types not working when graph config provided Open

langchain-ai/langgraphjs#1769 · 2 comments · 2 reactions · 1 assignee · Indexed Sep 18, 2026
langgraph-cli dev server starts but returns 404 on root and /docs, Studio fails to connect Open

langchain-ai/langgraphjs#1780 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Graph jumped directly to the end node when I resume a graph after updateState Open

langchain-ai/langgraphjs#1796 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Cannot create stateless Cron Open

langchain-ai/langgraphjs#1797 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
checkpoint_blob versions not calculated globally Open

langchain-ai/langgraphjs#1812 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Bug: "Channel already exists with a different type" error when multiple StateGraphs share field schemas Open

langchain-ai/langgraphjs#1820 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026

A short digest of beginner-friendly GitHub issues.