This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @langchain/langgraph-checkpoint@1.0.4 ### Patch Changes - [#2344](https://github.com/langchain-ai/langgraphjs/pull/2344) [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842) Thanks [@dependabot](https://github.com/apps/dependabot)! - chore(deps): bump uuid to 14.0.0 and keep checkpoint ID ordering stable Bump `uuid` from 10.x/13.x to 14.0.0 across packages. Starting with uuid 11, `v6({ clockseq })` no longer advances the sub-millisecond time counter when an explicit `clockseq` is passed, so checkpoint IDs created within the same millisecond were ordered only by `clockseq`. Since checkpoint IDs are sorted lexicographically, this broke ordering — most visibly for the negative `clockseq` used by the first ("input") checkpoint, which sorted as the newest. `uuid6()` now maintains its own monotonic `(msecs, nsecs)` clock (mirroring uuid 10's internal v1 behavior) so the time component is always strictly increasing and checkpoint ordering no longer depends on the `clockseq` value. `emptyCheckpoint()` also uses a non-negative `clockseq`. ## @langchain/langgraph-checkpoint-mongodb@1.3.2 ### Patch Changes - [#2186](https://github.com/langchain-ai/langgraphjs/pull/2186) [`26c2e32`](https://github.com/langchain-ai/langgraphjs/commit/26c2e325f435a2c061d6b78a7bd6af089cb1e0e6) Thanks [@jackjin1997](https://github.com/jackjin1997)! - fix: metadata filter in list() now works by querying a plain JSON shadow copy instead of the serialized binary blob ## @langchain/langgraph-checkpoint-postgres@1.0.2 ### Patch Changes - [#2255](https://github.com/langchain-ai/langgraphjs/pull/2255) [`e82a50b`](https://github.com/langchain-ai/langgraphjs/commit/e82a50b961a9413dab1ad2248747d5c73a6a1e58) Thanks [@leesta24](https://github.com/leesta24)! - fix(checkpoint-postgres): move serialization outside transaction in put() ## @langchain/langgraph-checkpoint-redis@1.0.7 ### Patch Changes - [#2344](https://github.com/langchain-ai/langgraphjs/pull/2344) [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842) Thanks [@dependabot](https://github.com/apps/dependabot)! - chore(deps): bump uuid to 14.0.0 and keep checkpoint ID ordering stable Bump `uuid` from 10.x/13.x to 14.0.0 across packages. Starting with uuid 11, `v6({ clockseq })` no longer advances the sub-millisecond time counter when an explicit `clockseq` is passed, so checkpoint IDs created within the same millisecond were ordered only by `clockseq`. Since checkpoint IDs are sorted lexicographically, this broke ordering — most visibly for the negative `clockseq` used by the first ("input") checkpoint, which sorted as the newest. `uuid6()` now maintains its own monotonic `(msecs, nsecs)` clock (mirroring uuid 10's internal v1 behavior) so the time component is always strictly increasing and checkpoint ordering no longer depends on the `clockseq` value. `emptyCheckpoint()` also uses a non-negative `clockseq`. ## @langchain/langgraph-api@1.2.4 ### Patch Changes - [#2344](https://github.com/langchain-ai/langgraphjs/pull/2344) [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842) Thanks [@dependabot](https://github.com/apps/dependabot)! - chore(deps): bump uuid to 14.0.0 and keep checkpoint ID ordering stable Bump `uuid` from 10.x/13.x to 14.0.0 across packages. Starting with uuid 11, `v6({ clockseq })` no longer advances the sub-millisecond time counter when an explicit `clockseq` is passed, so checkpoint IDs created within the same millisecond were ordered only by `clockseq`. Since checkpoint IDs are sorted lexicographically, this broke ordering — most visibly for the negative `clockseq` used by the first ("input") checkpoint, which sorted as the newest. `uuid6()` now maintains its own monotonic `(msecs, nsecs)` clock (mirroring uuid 10's internal v1 behavior) so the time component is always strictly increasing and checkpoint ordering no longer depends on the `clockseq` value. `emptyCheckpoint()` also uses a non-negative `clockseq`. - Updated dependencies \[]: - @langchain/langgraph-ui@1.2.4 ## @langchain/langgraph-cli@1.2.4 ### Patch Changes - [#1925](https://github.com/langchain-ai/langgraphjs/pull/1925) [`6503319`](https://github.com/langchain-ai/langgraphjs/commit/65033191cc3dd671d64dfac78ccdad453fdfbda2) Thanks [@jbrody-nexxa](https://github.com/jbrody-nexxa)! - fix(cli): add --no-reload flag to dev command - Updated dependencies \[[`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-api@1.2.4 ## @langchain/langgraph@1.3.3 ### Patch Changes - [#2037](https://github.com/langchain-ai/langgraphjs/pull/2037) [`9eb478f`](https://github.com/langchain-ai/langgraphjs/commit/9eb478ffeeda2ad9c3bff2cd0f0ac602b0a79f4f) Thanks [@pawel-twardziak](https://github.com/pawel-twardziak)! - Decouple `ContextType` generic from `configurable` in `PregelOptions` so that providing a custom context type no longer incorrectly narrows the configurable parameter. - [#2457](https://github.com/langchain-ai/langgraphjs/pull/2457) [`91a5494`](https://github.com/langchain-ai/langgraphjs/commit/91a54947155b3fad3234001e63e20099a63ed999) Thanks [@christian-bromann](https://github.com/christian-bromann)! - fix(langgraph): pass context with stateful RemoteGraph runs Pop `thread_id` from run `config.configurable` and forward `context` to the SDK so checkpointed remote runs accept user context without a 400 from ambiguous parameters. Closes [#1922](https://github.com/langchain-ai/langgraphjs/issues/1922). - [#1988](https://github.com/langchain-ai/langgraphjs/pull/1988) [`6d4bf92`](https://github.com/langchain-ai/langgraphjs/commit/6d4bf927e5cf3744034205528bcd09964949d6d7) Thanks [@Axadali](https://github.com/Axadali)! - Fix race condition in IterableReadableWritableStream.push() that caused ERR_INVALID_STATE errors when streaming with multiple parallel nodes and aborting the stream. - [#2409](https://github.com/langchain-ai/langgraphjs/pull/2409) [`101b70a`](https://github.com/langchain-ai/langgraphjs/commit/101b70aa8d7ec26ec1654ef814689b832f1e17f3) Thanks [@pragnyanramtha](https://github.com/pragnyanramtha)! - Preserve non-plain objects passed through `Send` and `Command` argument deserialization. - [#2344](https://github.com/langchain-ai/langgraphjs/pull/2344) [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842) Thanks [@dependabot](https://github.com/apps/dependabot)! - chore(deps): bump uuid to 14.0.0 and keep checkpoint ID ordering stable Bump `uuid` from 10.x/13.x to 14.0.0 across packages. Starting with uuid 11, `v6({ clockseq })` no longer advances the sub-millisecond time counter when an explicit `clockseq` is passed, so checkpoint IDs created within the same millisecond were ordered only by `clockseq`. Since checkpoint IDs are sorted lexicographically, this broke ordering — most visibly for the negative `clockseq` used by the first ("input") checkpoint, which sorted as the newest. `uuid6()` now maintains its own monotonic `(msecs, nsecs)` clock (mirroring uuid 10's internal v1 behavior) so the time component is always strictly increasing and checkpoint ordering no longer depends on the `clockseq` value. `emptyCheckpoint()` also uses a non-negative `clockseq`. - Updated dependencies \[[`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-sdk@1.9.11 - @langchain/langgraph-checkpoint@1.0.4 ## @langchain/langgraph-supervisor@1.0.4 ### Patch Changes - [#2344](https://github.com/langchain-ai/langgraphjs/pull/2344) [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842) Thanks [@dependabot](https://github.com/apps/dependabot)! - chore(deps): bump uuid to 14.0.0 and keep checkpoint ID ordering stable Bump `uuid` from 10.x/13.x to 14.0.0 across packages. Starting with uuid 11, `v6({ clockseq })` no longer advances the sub-millisecond time counter when an explicit `clockseq` is passed, so checkpoint IDs created within the same millisecond were ordered only by `clockseq`. Since checkpoint IDs are sorted lexicographically, this broke ordering — most visibly for the negative `clockseq` used by the first ("input") checkpoint, which sorted as the newest. `uuid6()` now maintains its own monotonic `(msecs, nsecs)` clock (mirroring uuid 10's internal v1 behavior) so the time component is always strictly increasing and checkpoint ordering no longer depends on the `clockseq` value. `emptyCheckpoint()` also uses a non-negative `clockseq`. ## @langchain/langgraph-sdk@1.9.11 ### Patch Changes - [#2455](https://github.com/langchain-ai/langgraphjs/pull/2455) [`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856) Thanks [@JHSeo-git](https://github.com/JHSeo-git)! - fix(sdk): prefer completed task's direct mapping over pending checkpoint's positional guess in fetchSubagentHistory - [#2344](https://github.com/langchain-ai/langgraphjs/pull/2344) [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842) Thanks [@dependabot](https://github.com/apps/dependabot)! - chore(deps): bump uuid to 14.0.0 and keep checkpoint ID ordering stable Bump `uuid` from 10.x/13.x to 14.0.0 across packages. Starting with uuid 11, `v6({ clockseq })` no longer advances the sub-millisecond time counter when an explicit `clockseq` is passed, so checkpoint IDs created within the same millisecond were ordered only by `clockseq`. Since checkpoint IDs are sorted lexicographically, this broke ordering — most visibly for the negative `clockseq` used by the first ("input") checkpoint, which sorted as the newest. `uuid6()` now maintains its own monotonic `(msecs, nsecs)` clock (mirroring uuid 10's internal v1 behavior) so the time component is always strictly increasing and checkpoint ordering no longer depends on the `clockseq` value. `emptyCheckpoint()` also uses a non-negative `clockseq`. ## @langchain/angular@1.0.11 ### Patch Changes - Updated dependencies \[[`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-sdk@1.9.11 ## @langchain/react@1.0.11 ### Patch Changes - Updated dependencies \[[`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-sdk@1.9.11 ## @langchain/svelte@1.0.11 ### Patch Changes - Updated dependencies \[[`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-sdk@1.9.11 ## @langchain/vue@1.0.11 ### Patch Changes - Updated dependencies \[[`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-sdk@1.9.11 ## @langchain/langgraph-ui@1.2.4 ## @example/ai-elements@0.1.26 ### Patch Changes - Updated dependencies \[[`9eb478f`](https://github.com/langchain-ai/langgraphjs/commit/9eb478ffeeda2ad9c3bff2cd0f0ac602b0a79f4f), [`91a5494`](https://github.com/langchain-ai/langgraphjs/commit/91a54947155b3fad3234001e63e20099a63ed999), [`6d4bf92`](https://github.com/langchain-ai/langgraphjs/commit/6d4bf927e5cf3744034205528bcd09964949d6d7), [`101b70a`](https://github.com/langchain-ai/langgraphjs/commit/101b70aa8d7ec26ec1654ef814689b832f1e17f3), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph@1.3.3 - @langchain/react@1.0.11 ## @examples/assistant-ui-claude@0.1.26 ### Patch Changes - Updated dependencies \[[`9eb478f`](https://github.com/langchain-ai/langgraphjs/commit/9eb478ffeeda2ad9c3bff2cd0f0ac602b0a79f4f), [`91a5494`](https://github.com/langchain-ai/langgraphjs/commit/91a54947155b3fad3234001e63e20099a63ed999), [`6d4bf92`](https://github.com/langchain-ai/langgraphjs/commit/6d4bf927e5cf3744034205528bcd09964949d6d7), [`101b70a`](https://github.com/langchain-ai/langgraphjs/commit/101b70aa8d7ec26ec1654ef814689b832f1e17f3), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph@1.3.3 - @langchain/react@1.0.11 ## @examples/ui-angular@0.0.36 ### Patch Changes - Updated dependencies \[[`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856), [`9eb478f`](https://github.com/langchain-ai/langgraphjs/commit/9eb478ffeeda2ad9c3bff2cd0f0ac602b0a79f4f), [`91a5494`](https://github.com/langchain-ai/langgraphjs/commit/91a54947155b3fad3234001e63e20099a63ed999), [`6d4bf92`](https://github.com/langchain-ai/langgraphjs/commit/6d4bf927e5cf3744034205528bcd09964949d6d7), [`101b70a`](https://github.com/langchain-ai/langgraphjs/commit/101b70aa8d7ec26ec1654ef814689b832f1e17f3), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-sdk@1.9.11 - @langchain/langgraph@1.3.3 - @langchain/angular@1.0.11 ## @examples/ui-multimodal@0.0.12 ### Patch Changes - Updated dependencies \[[`9eb478f`](https://github.com/langchain-ai/langgraphjs/commit/9eb478ffeeda2ad9c3bff2cd0f0ac602b0a79f4f), [`91a5494`](https://github.com/langchain-ai/langgraphjs/commit/91a54947155b3fad3234001e63e20099a63ed999), [`6d4bf92`](https://github.com/langchain-ai/langgraphjs/commit/6d4bf927e5cf3744034205528bcd09964949d6d7), [`101b70a`](https://github.com/langchain-ai/langgraphjs/commit/101b70aa8d7ec26ec1654ef814689b832f1e17f3), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph@1.3.3 - @langchain/react@1.0.11 ## @examples/ui-react@0.0.12 ### Patch Changes - Updated dependencies \[[`863b555`](https://github.com/langchain-ai/langgraphjs/commit/863b555346de02c2c0be290e877b7d260a3f8856), [`9eb478f`](https://github.com/langchain-ai/langgraphjs/commit/9eb478ffeeda2ad9c3bff2cd0f0ac602b0a79f4f), [`91a5494`](https://github.com/langchain-ai/langgraphjs/commit/91a54947155b3fad3234001e63e20099a63ed999), [`6d4bf92`](https://github.com/langchain-ai/langgraphjs/commit/6d4bf927e5cf3744034205528bcd09964949d6d7), [`101b70a`](https://github.com/langchain-ai/langgraphjs/commit/101b70aa8d7ec26ec1654ef814689b832f1e17f3), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph-sdk@1.9.11 - @langchain/langgraph@1.3.3 - @langchain/react@1.0.11 ## langgraph@1.0.35 ### Patch Changes - Updated dependencies \[[`9eb478f`](https://github.com/langchain-ai/langgraphjs/commit/9eb478ffeeda2ad9c3bff2cd0f0ac602b0a79f4f), [`91a5494`](https://github.com/langchain-ai/langgraphjs/commit/91a54947155b3fad3234001e63e20099a63ed999), [`6d4bf92`](https://github.com/langchain-ai/langgraphjs/commit/6d4bf927e5cf3744034205528bcd09964949d6d7), [`101b70a`](https://github.com/langchain-ai/langgraphjs/commit/101b70aa8d7ec26ec1654ef814689b832f1e17f3), [`0125920`](https://github.com/langchain-ai/langgraphjs/commit/0125920a2c4a87dc1d66aaf541ea16146f8cf842)]: - @langchain/langgraph@1.3.3 Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
AI Elements — Tool-Calling Agent Example
A self-contained chat interface built with AI Elements components and @langchain/react. It demonstrates how to build a production-quality agentic UI using AI Elements' composable component library.
What it shows
- Tool call rendering — each tool invocation is displayed with
Tool+ToolHeader+ToolContent+ToolInput+ToolOutput, updating live as the agent streams tool input and then the result. - Reasoning display — when the model emits reasoning tokens, a collapsible
Reasoningblock auto-opens during streaming and collapses when done. - Streaming messages —
Message+MessageContent+MessageResponserenders streaming markdown via Streamdown with full GFM support. - Loading skeleton — a
Shimmerplaceholder appears between the user's message and the first assistant token. - Conversation scroll —
Conversation+ConversationContent+ConversationScrollButtonauto-scrolls and shows a jump-to-bottom button when you scroll up. - Message actions —
MessageActions+MessageActionwith a copy button appears below the last assistant message once streaming completes. - Prompt input —
PromptInput+PromptInputBody+PromptInputTextarea+PromptInputFooter+PromptInputSubmitprovides a full-featured input bar. - Suggestions —
Suggestions+Suggestionshows preset prompts before the first message.
Agent
The backing LangGraph agent (packages/agents/src/agents/ai-elements.ts) is a createReactAgent with two simulated tools:
| Tool | Description |
|---|---|
get_weather |
Returns deterministic simulated weather data for any city |
web_search |
Returns three simulated search result objects for any query |
No external API keys are required for the tools.
Setup
Create a .env file in this folder (optional — defaults are provided):
VITE_LANGGRAPH_API_URL=http://localhost:2024 # default when running locally
VITE_LANGGRAPH_ASSISTANT_ID=ai_elements # matches langgraph.json
Run
Start the LangGraph agent server first:
bun run dev --filter=@langchain/playground-agents
Then start this preview app:
bun run dev --filter=@langchain/playground-preview-ai-elements
Open http://localhost:4600.
AI Elements components used
| Component | Source file |
|---|---|
Conversation, ConversationContent, ConversationScrollButton |
src/components/ai-elements/conversation.tsx |
Message, MessageContent, MessageResponse, MessageActions, MessageAction |
src/components/ai-elements/message.tsx |
PromptInput, PromptInputBody, PromptInputTextarea, PromptInputFooter, PromptInputSubmit |
src/components/ai-elements/prompt-input.tsx |
Tool, ToolHeader, ToolContent, ToolInput, ToolOutput |
src/components/ai-elements/tool.tsx |
Reasoning, ReasoningTrigger, ReasoningContent |
src/components/ai-elements/reasoning.tsx |
Suggestions, Suggestion |
src/components/ai-elements/suggestion.tsx |
Shimmer |
src/components/ai-elements/shimmer.tsx |
Components live in src/components/ai-elements/ and are owned by this package (shadcn/AI Elements registry style — copy-paste, not a node_modules import).
Vite path alias
AI Elements components use bare src/ imports (e.g. import { cn } from "src/lib/utils"). The vite.config.ts maps src → ./src to resolve these correctly in both dev and production builds.