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langgraphjs/examples/assistant-ui-claude
github-actions[bot] 4e71ace65a chore: version packages (#2439)
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# Releases
## @langchain/langgraph-sdk@1.9.8

### Patch Changes

- [#2438](https://github.com/langchain-ai/langgraphjs/pull/2438)
[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): cancel runs on stop by default and add disconnect()

`stream.stop()` now calls `client.runs.cancel` for the active run before
disconnecting the client (default `{ cancel: true }`). Join/rejoin UIs
can call `stream.disconnect()` or `stop({ cancel: false })` to leave the
agent running server-side.

    This fills a missing gap we found when migrating to v1.

## @langchain/angular@1.0.8

### Patch Changes

- [#2438](https://github.com/langchain-ai/langgraphjs/pull/2438)
[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): cancel runs on stop by default and add disconnect()

`stream.stop()` now calls `client.runs.cancel` for the active run before
disconnecting the client (default `{ cancel: true }`). Join/rejoin UIs
can call `stream.disconnect()` or `stop({ cancel: false })` to leave the
agent running server-side.

    This fills a missing gap we found when migrating to v1.

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/langgraph-sdk@1.9.8

## @langchain/react@1.0.8

### Patch Changes

- [#2438](https://github.com/langchain-ai/langgraphjs/pull/2438)
[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): cancel runs on stop by default and add disconnect()

`stream.stop()` now calls `client.runs.cancel` for the active run before
disconnecting the client (default `{ cancel: true }`). Join/rejoin UIs
can call `stream.disconnect()` or `stop({ cancel: false })` to leave the
agent running server-side.

    This fills a missing gap we found when migrating to v1.

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/langgraph-sdk@1.9.8

## @langchain/svelte@1.0.8

### Patch Changes

- [#2438](https://github.com/langchain-ai/langgraphjs/pull/2438)
[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): cancel runs on stop by default and add disconnect()

`stream.stop()` now calls `client.runs.cancel` for the active run before
disconnecting the client (default `{ cancel: true }`). Join/rejoin UIs
can call `stream.disconnect()` or `stop({ cancel: false })` to leave the
agent running server-side.

    This fills a missing gap we found when migrating to v1.

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/langgraph-sdk@1.9.8

## @langchain/vue@1.0.8

### Patch Changes

- [#2438](https://github.com/langchain-ai/langgraphjs/pull/2438)
[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): cancel runs on stop by default and add disconnect()

`stream.stop()` now calls `client.runs.cancel` for the active run before
disconnecting the client (default `{ cancel: true }`). Join/rejoin UIs
can call `stream.disconnect()` or `stop({ cancel: false })` to leave the
agent running server-side.

    This fills a missing gap we found when migrating to v1.

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/langgraph-sdk@1.9.8

## @example/ai-elements@0.1.23

### Patch Changes

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/react@1.0.8

## @examples/assistant-ui-claude@0.1.23

### Patch Changes

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/react@1.0.8

## @examples/ui-angular@0.0.33

### Patch Changes

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/langgraph-sdk@1.9.8
    -   @langchain/angular@1.0.8

## @examples/ui-multimodal@0.0.9

### Patch Changes

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/react@1.0.8

## @examples/ui-react@0.0.9

### Patch Changes

- Updated dependencies
\[[`29d2bde`](https://github.com/langchain-ai/langgraphjs/commit/29d2bde235bf85e8a5e1dd59a997266ff894484b)]:
    -   @langchain/langgraph-sdk@1.9.8
    -   @langchain/react@1.0.8

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-05-26 17:05:03 -07:00
..
2026-05-26 17:05:03 -07:00
2026-05-26 17:05:03 -07:00

Assistant-UI Claude Example

This example combines:

  • @assistant-ui/react for the Claude-style chat surface
  • @langchain/react for streaming LangGraph state on the frontend
  • a basic langchain agent on the backend

What it shows

  • A Claude-inspired assistant-ui thread and composer
  • A local single-agent graph powered by langchain
  • How to bridge @langchain/react state into assistant-ui with useExternalStoreRuntime

Setup

Create a local .env file in this folder with:

OPENAI_API_KEY=your_openai_api_key
OPENAI_MODEL=gpt-4.1-mini

Optional overrides:

LANGGRAPH_API_URL=http://localhost:2024
VITE_LANGGRAPH_API_URL=http://localhost:2024
VITE_LANGGRAPH_ASSISTANT_ID=assistant-ui-claude

Run

pnpm --filter @examples/assistant-ui-claude dev

Then open the Vite URL shown in the terminal, usually http://localhost:5173.

The frontend talks directly to the LangGraph dev server at http://localhost:2024, which serves the local assistant-ui-claude graph from langgraph.json.