Merge branch 'main' of github.com:langchain-ai/langgraphjs into jacob…

…/command

docs/docs/concepts/memory.md

@@ -208,7 +208,7 @@ Long-term memory in LangGraph allows systems to retain information across differ
 LangGraph stores long-term memories as JSON documents in a [store](persistence.md#memory-store) ([reference doc](https://langchain-ai.github.io/langgraphjs/reference/classes/checkpoint.BaseStore.html)). Each memory is organized under a custom `namespace` (similar to a folder) and a distinct `key` (like a filename). Namespaces often include user or org IDs or other labels that makes it easier to organize information. This structure enables hierarchical organization of memories. Cross-namespace searching is then supported through content filters. See the example below for an example.
 
 ```typescript
-import { InMemoryStore } from "@langchain/langgraph/store";
+import { InMemoryStore } from "@langchain/langgraph";
 
 // InMemoryStore saves data to an in-memory dictionary. Use a DB-backed store in production use.
 const store = new InMemoryStore();

docs/docs/how-tos/index.md

@@ -40,6 +40,8 @@ LangGraph makes it easy to manage conversation [memory](../concepts/memory.md) i
 - [How to manage conversation history](manage-conversation-history.ipynb)
 - [How to delete messages](delete-messages.ipynb)
 - [How to add summary of the conversation history](add-summary-conversation-history.ipynb)
+- [How to add long-term memory (cross-thread)](cross-thread-persistence.ipynb)
+- [How to use semantic search for long-term memory](semantic-search.ipynb)
 
 ### Human-in-the-loop
 
@@ -207,4 +209,4 @@ These are the guides for resolving common errors you may find while building wit
 - [GRAPH_RECURSION_LIMIT](../troubleshooting/errors/GRAPH_RECURSION_LIMIT.ipynb)
 - [INVALID_CONCURRENT_GRAPH_UPDATE](../troubleshooting/errors/INVALID_CONCURRENT_GRAPH_UPDATE.ipynb)
 - [INVALID_GRAPH_NODE_RETURN_VALUE](../troubleshooting/errors/INVALID_GRAPH_NODE_RETURN_VALUE.ipynb)
-- [MULTIPLE_SUBGRAPHS](../troubleshooting/errors/MULTIPLE_SUBGRAPHS.ipynb)
+- [MULTIPLE_SUBGRAPHS](../troubleshooting/errors/MULTIPLE_SUBGRAPHS.ipynb)

docs/mkdocs.yml

@@ -120,6 +120,7 @@ nav:
               - how-tos/manage-conversation-history.ipynb
               - how-tos/delete-messages.ipynb
               - how-tos/add-summary-conversation-history.ipynb
+              - how-tos/semantic-search.ipynb
           - Human-in-the-loop:
               - Human-in-the-loop: how-tos#human-in-the-loop
               - how-tos/breakpoints.ipynb

examples/how-tos/react-system-prompt.ipynb

@@ -8,7 +8,18 @@
     "\n",
     "This tutorial will show how to add a custom system prompt to the prebuilt ReAct agent. Please see [this tutorial](./create-react-agent.ipynb) for how to get started with the prebuilt ReAct agent\n",
     "\n",
-    "You can add a custom system prompt by passing a string to the `messageModifier` param.\n",
+    "You can add a custom system prompt by passing a string to the `stateModifier` param.\n",
+    "\n",
+    "<div class=\"admonition tip\">\n",
+    "    <p class=\"admonition-title\">Compatibility</p>\n",
+    "    <p>\n",
+    "        The <a href=\"https://langchain-ai.github.io/langgraphjs/reference/types/langgraph_prebuilt.CreateReactAgentParams.html\"><code>stateModifier</code></a> parameter was added in <code>@langchain/langgraph>=0.2.27</code>.\n",
+    "        <br />\n",
+    "        If you are on an older version, you will need to use the deprecated <code>messageModifier</code> parameter.\n",
+    "        <br />\n",
+    "        For help upgrading, see <a href=\"/langgraphjs/how-tos/manage-ecosystem-dependencies/\">this guide</a>.\n",
+    "    </p>\n",
+    "</div>\n",
     "\n",
     "## Setup\n",
     "\n",
@@ -88,7 +99,7 @@
     "// We can add our system prompt here\n",
     "const prompt = \"Respond in Italian\"\n",
     "\n",
-    "const agent = createReactAgent({ llm: model, tools: [getWeather], messageModifier: prompt });"
+    "const agent = createReactAgent({ llm: model, tools: [getWeather], stateModifier: prompt });"
    ]
   },
   {