Fix langgraph toolbox cold-start latency: check real loaded tools, not CompiledStateGraph.tools (#619)

Author: lindazqli

.github/scripts/mirror-back.sh

@@ -93,13 +93,15 @@ is_sync_bot_identity() {
 
 should_skip_commit() {
     local sha="$1"
-    local author_name author_email committer_name committer_email
+    local author_name author_email
     author_name=$(git -C "$PUBLIC_REPO_PATH" show -s --format='%an' "$sha")
     author_email=$(git -C "$PUBLIC_REPO_PATH" show -s --format='%ae' "$sha")
-    committer_name=$(git -C "$PUBLIC_REPO_PATH" show -s --format='%cn' "$sha")
-    committer_email=$(git -C "$PUBLIC_REPO_PATH" show -s --format='%ce' "$sha")
 
-    for value in "$author_name" "$author_email" "$committer_name" "$committer_email"; do
+    # Skip only when the AUTHOR is a sync-bot identity. The sync pipeline sets both
+    # author and committer to the bot identity. Human PRs merged via "direct rebase
+    # merge as the App" have a human author but a sync-bot committer — those must
+    # still be mirrored back to private.
+    for value in "$author_name" "$author_email"; do
         if is_sync_bot_identity "$value"; then
             return 0
         fi

samples/python/hosted-agents/bring-your-own/responses/langgraph-toolbox-user-identity/main.py

@@ -200,7 +200,7 @@ async def quickstart():
             schema["properties"] = props
 
     logger.info(f"Loaded {len(tools)} tools from MCP")
-    return create_agent(llm, tools), toolbox
+    return create_agent(llm, tools), toolbox, tools
 
 
 def _extract_assistant_text(result: dict) -> str:
@@ -326,9 +326,8 @@ async def _get_agent():
         last_exc: Exception | None = None
         for attempt in range(1, 6):
             try:
-                agent, mcp_client = await quickstart()
-                bound_tools = getattr(agent, "tools", None) or []
-                if not bound_tools:
+                agent, mcp_client, tools = await quickstart()
+                if not tools:
                     logger.warning(
                         "Toolbox returned 0 tools on attempt %d; retrying", attempt,
                     )
@@ -344,7 +343,7 @@ async def _get_agent():
                 await asyncio.sleep(min(2 ** attempt, 15))
         if last_exc is not None:
             raise last_exc
-        _agent, _mcp_client = await quickstart()
+        _agent, _mcp_client, _ = await quickstart()
         return _agent