WIP Draft nav + sidebar updates for langsmith platform

.github/copilot-instructions.md

@@ -16,8 +16,7 @@ All documentation lives in the `src/` folder, with the following structure:
     - `/images`: Shared images used across OSS docs
     - `/concepts`: Shared concepts used across OSS docs
     - The root contains product/language agnostic meta-info such as our versioning & release policy and the releases page.
-- `/langsmith`: Documentation for LangSmith, including quickstarts, observability, evaluation, prompt engineering, self hosting, and administration.
-- `/langgraph-platform`: Documentation for the LangGraph Platform, including quickstarts, features, guides on building & deploying using the platform, management & administration, and reference docs.
+- `/langsmith`: Documentation for LangSmith, including quickstarts, observability, evaluation, prompt engineering, guides on building & deploying using the platform, management & administration, and reference docs.
 - `/labs`: Home to LangChain's experimental AI products, including deep agents, open SWE, and Open Agent Platform
 - `/images`: Shared images used across all docs
 - `/snippets`: Shared code snippets used across all docs

.github/labeler.yml

@@ -33,13 +33,6 @@ oss:
       - src/oss/**
       - src/oss/**/*
 
-# Label for LangGraph Platform documentation changes
-langgraph-platform:
-  - changed-files:
-    - any-glob-to-any-file:
-      - src/langgraph-platform/**
-      - src/langgraph-platform/**/*
-
 # Label for Labs documentation changes
 labs:
   - changed-files:

README.md

@@ -2,8 +2,8 @@
 
 🦜 **Welcome!** This repository contains the documentation build pipeline for LangChain projects.
 
-* 🏠 [`docs.langchain.com`](https://docs.langchain.com) is our docs home, centralizing LangChain, LangGraph, LangGraph Platform, LangSmith, and LangChain Labs (Deep Agents, Open SWE, Open Agent Platform). This site is hosted on [Mintlify](https://mintlify.com).
-* 🛠️ `reference.langchain.com` is home to the API reference docs for LangChain, LangGraph, LangGraph Platform, and LangChain integration packages (e.g. [`langchain-anthropic`](https://pypi.org/project/langchain-anthropic/), [`langchain-openai`](https://pypi.org/project/langchain-openai/)). These are static sites built from the source code and deployed to [Vercel](https://vercel.com).
+* 🏠 [`docs.langchain.com`](https://docs.langchain.com) is our docs home, centralizing LangChain, LangGraph, LangSmith, and LangChain Labs (Deep Agents, Open SWE, Open Agent Platform). This site is hosted on [Mintlify](https://mintlify.com).
+* 🛠️ `reference.langchain.com` is home to the API reference docs for LangChain, LangGraph, LangSmith, and LangChain integration packages (e.g. [`langchain-anthropic`](https://pypi.org/project/langchain-anthropic/), [`langchain-openai`](https://pypi.org/project/langchain-openai/)). These are static sites built from the source code and deployed to [Vercel](https://vercel.com).
   * [`Python reference`](https://reference.langchain.com/python/)
   * [`JavaScript/TypeScript reference`](https://reference.langchain.com/javascript/)
 
@@ -25,7 +25,6 @@ pipeline/                 # Build pipeline source code
 scripts/                  # Helper scripts
 src/                      # Source documentation files (edit these)
     labs/                 # LangChain Labs docs
-    langgraph-platform/   # LangGraph Platform docs
     langsmith/            # LangSmith docs
     oss/                  # LangChain, LangGraph, and integrations docs
     docs.json             # Mintlify site configuration

pipeline/core/builder.py

@@ -92,10 +92,6 @@ def build_all(self) -> None:
         logger.info("Building LangGraph JavaScript version...")
         self._build_langgraph_version("oss/javascript", "js")
 
-        # Build unversioned content (same content regardless of version)
-        logger.info("Building LangGraph Platform content...")
-        self._build_unversioned_content("langgraph-platform", "langgraph-platform")
-
         logger.info("Building LangChain Labs content...")
         self._build_unversioned_content("labs", "labs")
 
@@ -305,7 +301,7 @@ def build_file(self, file_path: Path) -> None:
         if relative_path.parts[0] == "oss":
             self._build_oss_file(file_path, relative_path)
         # Check if this is unversioned content
-        elif relative_path.parts[0] in {"langgraph-platform", "labs", "langsmith"}:
+        elif relative_path.parts[0] in {"labs", "langsmith"}:
             self._build_unversioned_file(file_path, relative_path)
         # Handle shared files (images, docs.json, etc.)
         elif self.is_shared_file(file_path):
@@ -340,7 +336,7 @@ def _build_oss_file(self, file_path: Path, relative_path: Path) -> None:
             logger.info("Built JavaScript version: oss/javascript/%s", oss_relative)
 
     def _build_unversioned_file(self, file_path: Path, relative_path: Path) -> None:
-        """Build an unversioned file (langgraph-platform, labs, langsmith).
+        """Build an unversioned file (langsmith, labs).
 
         Args:
             file_path: Path to the source file.
@@ -573,10 +569,10 @@ def _build_langgraph_version(self, output_dir: str, target_language: str) -> Non
         )
 
     def _build_unversioned_content(self, source_dir: str, output_dir: str) -> None:
-        """Build unversioned content (langgraph-platform/, labs/, langsmith/).
+        """Build unversioned content (labs/, langsmith/).
 
         Args:
-            source_dir: Source directory name (e.g., "langgraph-platform", "labs").
+            source_dir: Source directory name (e.g., "labs").
             output_dir: Output directory name (same as source_dir).
         """
         src_path = self.src_dir / source_dir

pipeline/core/watcher.py

@@ -378,11 +378,7 @@ def touch_files_for_source(source_file: Path) -> int:
                                 os.utime(built_file, (current_time, current_time))
                                 touched_count += 1
 
-                elif relative_path.parts[0] in {
-                    "langgraph-platform",
-                    "labs",
-                    "langsmith",
-                }:
+                elif relative_path.parts[0] in {"labs", "langsmith"}:
                     # Unversioned content
                     built_file = self.build_dir / relative_path
 

reference/javascript/README.md

@@ -1,3 +1,3 @@
 # LangChain TypeScript Reference Documentation
 
-This directory contains the source code and build process for the TypeScript reference documentation site, hosted at [`reference.langchain.com/javascript`](https://reference.langchain.com/javascript). This site serves references for LangChain, LangGraph, LangGraph Platform, and LangChain integration packages (such as [`@langchain/anthropic`](https://npm.com/package/@langchain/anthropic), [`@langchain/openai`](https://npm.com/package/@langchain/openai), etc.).
+This directory contains the source code and build process for the TypeScript reference documentation site, hosted at [`reference.langchain.com/javascript`](https://reference.langchain.com/javascript). This site serves references for LangChain, LangGraph, LangSmith, and LangChain integration packages (such as [`@langchain/anthropic`](https://npm.com/package/@langchain/anthropic), [`@langchain/openai`](https://npm.com/package/@langchain/openai), etc.).

reference/python/README.md

@@ -1,6 +1,6 @@
 # LangChain Python Reference Documentation
 
-This directory contains the source code and build process for the Python reference documentation site, hosted at [`reference.langchain.com/python`](https://reference.langchain.com/python). This site serves references for LangChain, LangGraph, LangGraph Platform, and LangChain integration packages (such as [`langchain-anthropic`](https://pypi.org/project/langchain-anthropic/), [`langchain-openai`](https://pypi.org/project/langchain-openai/), etc.).
+This directory contains the source code and build process for the Python reference documentation site, hosted at [`reference.langchain.com/python`](https://reference.langchain.com/python). This site serves references for LangChain, LangGraph, LangSmith, and LangChain integration packages (such as [`langchain-anthropic`](https://pypi.org/project/langchain-anthropic/), [`langchain-openai`](https://pypi.org/project/langchain-openai/), etc.).
 
 The site is built using [MkDocs](https://www.mkdocs.org/) with the [Material for MkDocs](https://squidfunk.github.io/mkdocs-material/) theme and the [mkdocstrings](https://mkdocstrings.github.io/) plugin for generating API reference documentation from docstrings. See all config options in the [`mkdocs.yml`](./mkdocs.yml) file.
 

scripts/update_mdx.py

@@ -4,7 +4,7 @@
 def update_mdx_files():
     # Get all MDX files in the specified directories
     mdx_files = []
-    for root in ["oss", "langsmith", "langgraph-platform"]:
+    for root in ["oss", "langsmith"]:
         mdx_files.extend(glob.glob(f"{root}/**/*.mdx", recursive=True))
 
     for file_path in mdx_files: