From 8755933364b474c9b8ee408c19b53999e1082310 Mon Sep 17 00:00:00 2001
From: aran-yogesh <yogesh.mahendran@langchain.dev>
Date: Thu, 12 Feb 2026 15:10:26 -0800
Subject: [PATCH] using sandbox api instead of failing

---
 apps/agent/agent/tools/commit_and_open_pr.py | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/apps/agent/agent/tools/commit_and_open_pr.py b/apps/agent/agent/tools/commit_and_open_pr.py
index 517f0051..6979deed 100644
--- a/apps/agent/agent/tools/commit_and_open_pr.py
+++ b/apps/agent/agent/tools/commit_and_open_pr.py
@@ -3,8 +3,10 @@ import logging
 from typing import Any
 
 from langgraph.config import get_config
+from langgraph_sdk import get_client
 
 from ..encryption import decrypt_token
+from ..server import _create_langsmith_sandbox
 from ..utils.github import (
     create_github_pr,
     get_github_default_branch,
@@ -21,6 +23,7 @@ from ..utils.github import (
 from ..utils.sandbox_state import SANDBOX_BACKENDS
 
 logger = logging.getLogger(__name__)
+client = get_client()
 
 
 def commit_and_open_pr(
@@ -128,7 +131,18 @@ def commit_and_open_pr(
 
         sandbox_backend = SANDBOX_BACKENDS.get(thread_id)
         if not sandbox_backend:
-            return {"success": False, "error": "Missing sandbox backend", "pr_url": None}
+
+            loop = asyncio.get_event_loop()
+            thread = loop.run_until_complete(client.threads.get(thread_id=thread_id))
+            sandbox_id = thread.get("metadata", {}).get("sandbox_id")
+
+            if not sandbox_id:
+                return {"success": False, "error": "No sandbox found for thread", "pr_url": None}
+
+            # Connect to existing sandbox
+            sandbox_backend = _create_langsmith_sandbox(sandbox_id)
+            SANDBOX_BACKENDS[thread_id] = sandbox_backend
+            logger.info("Fetched sandbox %s for thread %s", sandbox_id, thread_id)
 
         repo_dir = f"/workspace/{repo_name}"