feat: multi agent part 2 (#1866)

New and revamped multi agent docs!! Weeks in the making!

Added pages for:
* Multi agent overview
  * Subagents
  * Router
  * Handoffs
  * Skills
  * Custom workflow

Added tutorials for:
* Router
* Handoffs
* Skills

---------

Co-authored-by: Eugene Yurtsev <[email protected]>
Co-authored-by: Lauren Hirata Singh <[email protected]>
Co-authored-by: Eugene Yurtsev <[email protected]>

Author: 3 people

pyproject.toml

@@ -10,6 +10,8 @@ dependencies = [
     "nbformat>=5.0.0",
     "pyyaml>=6.0.2",
     "nbconvert>=7.16.6",
+    "langchain>=1.0.1",
+    "langchain-anthropic>=1.0.0",
 ]
 
 

src/docs.json

@@ -185,7 +185,17 @@
                         "oss/python/langchain/context-engineering",
                         "oss/python/langchain/mcp",
                         "oss/python/langchain/human-in-the-loop",
-                        "oss/python/langchain/multi-agent",
+                        {
+                          "group": "Multi-agent",
+                          "pages": [
+                            "oss/python/langchain/multi-agent/index",
+                            "oss/python/langchain/multi-agent/subagents",
+                            "oss/python/langchain/multi-agent/handoffs",
+                            "oss/python/langchain/multi-agent/skills",
+                            "oss/python/langchain/multi-agent/router",
+                            "oss/python/langchain/multi-agent/custom-workflow"
+                          ]
+                        },
                         "oss/python/langchain/retrieval",
                         "oss/python/langchain/long-term-memory"
                       ]
@@ -349,10 +359,19 @@
                             "oss/python/langchain/knowledge-base",
                             "oss/python/langchain/rag",
                             "oss/python/langchain/sql-agent",
-                            "oss/python/langchain/supervisor",
                             "oss/python/langchain/voice-agent"
                           ]
                         },
+                        {
+                          "group": "Multi-agent",
+                          "expanded": true,
+                          "pages": [
+                            "oss/python/langchain/multi-agent/subagents-personal-assistant",
+                            "oss/python/langchain/multi-agent/handoffs-customer-support",
+                            "oss/python/langchain/multi-agent/router-knowledge-base",
+                            "oss/python/langchain/multi-agent/skills-sql-assistant"
+                          ]
+                        },
                         {
                           "group": "LangGraph",
                           "expanded": true,
@@ -505,7 +524,17 @@
                         "oss/javascript/langchain/context-engineering",
                         "oss/javascript/langchain/mcp",
                         "oss/javascript/langchain/human-in-the-loop",
-                        "oss/javascript/langchain/multi-agent",
+                        {
+                          "group": "Multi-agent",
+                          "pages": [
+                            "oss/javascript/langchain/multi-agent/index",
+                            "oss/javascript/langchain/multi-agent/subagents",
+                            "oss/javascript/langchain/multi-agent/handoffs",
+                            "oss/javascript/langchain/multi-agent/skills",
+                            "oss/javascript/langchain/multi-agent/router",
+                            "oss/javascript/langchain/multi-agent/custom-workflow"
+                          ]
+                        },
                         "oss/javascript/langchain/retrieval",
                         "oss/javascript/langchain/long-term-memory"
                       ]
@@ -707,12 +736,31 @@
                       "group": "Tutorials",
                       "icon": "code",
                       "pages": [
-                        "oss/javascript/langchain/knowledge-base",
-                        "oss/javascript/langchain/rag",
-                        "oss/javascript/langchain/sql-agent",
-                        "oss/javascript/langchain/supervisor",
-                        "oss/javascript/langchain/voice-agent",
-                        "oss/javascript/langgraph/agentic-rag"
+                        {
+                          "group": "LangChain",
+                          "expanded": true,
+                          "pages": [
+                            "oss/javascript/langchain/knowledge-base",
+                            "oss/javascript/langchain/rag",
+                            "oss/javascript/langchain/sql-agent",
+                            "oss/javascript/langchain/voice-agent"
+                          ]
+                        },
+                        {
+                          "group": "Multi-agent",
+                          "expanded": true,
+                          "pages": [
+                            "oss/javascript/langchain/multi-agent/subagents-personal-assistant",
+                            "oss/javascript/langchain/multi-agent/router-knowledge-base"
+                          ]
+                        },
+                        {
+                          "group": "LangGraph",
+                          "expanded": true,
+                          "pages": [
+                            "oss/javascript/langgraph/agentic-rag"
+                          ]
+                        }
                       ]
                     },
                     {
@@ -1867,6 +1915,14 @@
     {
       "source": "/oss/python/integrations/llms/google_ai",
       "destination": "/oss/python/integrations/llms/google_generative_ai"
+    },
+    {
+      "source": "/oss/python/langchain/supervisor",
+      "destination": "/oss/python/langchain/multi-agent/subagents-personal-assistant"
+    },
+    {
+      "source": "/oss/javascript/langchain/supervisor",
+      "destination": "/oss/javascript/langchain/multi-agent/subagents-personal-assistant"
     }
   ]
 }