landing page

pipeline/core/builder.py

@@ -685,6 +685,10 @@ def is_shared_file(self, file_path: Path) -> bool:
         if file_path.name == "docs.json":
             return True
 
+        # index.mdx at root should be shared
+        if file_path.name == "index.mdx" and len(relative_path.parts) == 1:
+            return True
+
         # Images directory should be shared
         if "images" in relative_path.parts:
             return True

src/docs.json

@@ -10,8 +10,7 @@
   },
   "logo": {
     "light": "/images/brand/langchain-docs-teal.svg",
-    "dark": "/images/brand/langchain-docs-lilac.svg",
-    "href": "https://docs.langchain.com/oss/python"
+    "dark": "/images/brand/langchain-docs-lilac.svg"
   },
   "favicon": {
     "light": "/images/brand/docs-favicon.svg",
@@ -131,6 +130,14 @@
       {
         "version": "Python",
         "dropdowns": [
+          {
+            "dropdown": "Home",
+            "icon": "house",
+            "description": "LangChain docs home",
+            "pages": [
+              "index"
+            ]
+          },
           {
             "dropdown": "OSS (v1-alpha)",
             "icon": "link",
@@ -1149,6 +1156,14 @@
       {
         "version": "JavaScript",
         "dropdowns": [
+          {
+            "dropdown": "Home",
+            "icon": "house",
+            "description": "LangChain docs home",
+            "pages": [
+              "index"
+            ]
+          },
           {
             "dropdown": "OSS (v1-alpha)",
             "icon": "link",

src/hide-version-picker.js

@@ -15,7 +15,9 @@
         body.classList.remove('hide-version-picker');
 
         // Add appropriate class based on URL
-        if (currentPath.includes('/langgraph-platform/') || currentPath.includes('/langgraph-platform')) {
+        if (currentPath === '/' || currentPath === '/index') {
+            body.classList.add('hide-version-picker');
+        } else if (currentPath.includes('/langgraph-platform/') || currentPath.includes('/langgraph-platform')) {
             body.classList.add('hide-version-picker');
         } else if (currentPath.match(/\/labs(?:\/|$)/)) {
             body.classList.add('hide-version-picker');

src/index.mdx

@@ -1,62 +1,102 @@
 ---
-title: LangChain docs home
-sidebarTitle: Home
-description: "The platform for reliable agents"
-mode: "wide"
+title:
+sidebarTitle: All products
+mode: "center"
 ---
 
+# The platform for developers building reliable agents
 
-# Frameworks
+Tools for every step of the agent development lifecycle-- built to unlock powerful AI in production.
+
+## Open-source frameworks
+
+<Tabs>
+<Tab title="Python" icon="python">
 
 <CardGroup cols={2}>
     <Card
-        title="LangChain - Python"
-        href="https://python.langchain.com/docs/introduction/"
+        title="LangChain"
+        href="/oss/python/langchain/overview"
+        icon="link"
+        cta="Learn more"
     >
-  Open-source framework for developing applications powered by large language models (LLMs).
+    Open-source framework for developing applications powered by large language models (LLMs).
     </Card>
 
     <Card
-        title="LangChain - JavaScript"
-        href="https://js.langchain.com/docs/introduction/"
+        title="LangGraph"
+        href="/oss/python/langgraph/overview"
+        icon="circle-nodes"
+        cta="Learn more"
     >
-  Open-source framework for developing applications powered by large language models (LLMs).
+    Low-level orchestration framework for building, managing, and deploying long-running agents.
+    </Card>
+
+</CardGroup>
+
+</Tab>
+<Tab title="JavaScript" icon="js">
+<CardGroup cols={2}>
+    <Card
+        title="LangChain"
+        href="/oss/javascript/langchain/overview"
+        icon="link"
+        cta="Learn more"
+    >
+    Open-source framework for developing applications powered by large language models (LLMs).
     </Card>
 
     <Card
         title="LangGraph"
-        href="/oss/python"
+        href="/oss/javascript/langgraph/overview"
+        icon="circle-nodes"
+        cta="Learn more"
     >
-  Low-level orchestration framework for building, managing, and deploying long-running, stateful agents.
+    Low-level orchestration framework for building, managing, and deploying long-running agents.
     </Card>
 
 </CardGroup>
+</Tab>
+</Tabs>
 
-# Platforms
+## LangSmith offerings
 
 <CardGroup cols={2}>
     <Card
-        title="LangGraph Platform"
-        href="/langgraph-platform/"
+        title="Observability"
+        href="/langsmith/observability"
+        icon="magnifying-glass"
+        cta="Learn more"
     >
-    Commercial platform for developing, deploying, and scaling long-running agents and worflows.
+    Debug faster with visibility into each step your application takes when handling a request.
     </Card>
 
     <Card
-        title="LangSmith"
-        href="https://docs.smith.langchain.com/"
+        title="Evaluation"
+        href="/langsmith/evaluation"
+        icon="chart-simple"
+        cta="Learn more"
     >
-    Observability and evals platform for debugging, testing, and monitoring any AI application.
+    Measure quality of your applications over time to build more reliable AI applications.
     </Card>
-</CardGroup>
 
-# Experimental
+    <Card
+        title="Prompt Engineering"
+        href="/langsmith/prompt-engineering"
+        icon="terminal"
+        cta="Learn more"
+    >
+    Iterate on prompts with automatic version control and collaboration features.
+    </Card>
 
-<CardGroup cols={2}>
     <Card
-        title="LangChain Labs"
-        href="/labs"
+        title="Deployment"
+        href="/langgraph-platform"
+        icon="rocket-launch"
+        cta="Learn more"
     >
-    A collection of agents and experimental AI products.
+    Deploy and manage long-running, stateful agent workflows in production.
     </Card>
+
 </CardGroup>
+