diff --git a/lang_agent/front_api/build_server_utils.py b/lang_agent/front_api/build_server_utils.py
index d7ce585..5ca7e4b 100644
--- a/lang_agent/front_api/build_server_utils.py
+++ b/lang_agent/front_api/build_server_utils.py
@@ -1,4 +1,4 @@
-from typing import Dict, List, Optional
+from typing import Any, Dict, List
 import os
 import os.path as osp
 import subprocess
@@ -6,10 +6,17 @@ import json
 
 from lang_agent.config.core_config import load_tyro_conf
 
-def opt_to_config(save_path:str, *nargs):
+_PROJECT_ROOT = osp.dirname(osp.dirname(osp.dirname(osp.abspath(__file__))))
+_TY_BUILD_SCRIPT = osp.join(_PROJECT_ROOT, "lang_agent", "config", "ty_build_config.py")
+
+
+def opt_to_config(save_path: str, *nargs):
     os.makedirs(osp.dirname(save_path), exist_ok=True)
-    subprocess.run(["python", "lang_agent/config/ty_build_config.py", 
-                    "--save-path", save_path, *nargs])
+    subprocess.run(
+        ["python", _TY_BUILD_SCRIPT, "--save-path", save_path, *nargs],
+        check=True,
+        cwd=_PROJECT_ROOT,
+    )
 
 def _build_and_load_pipeline_config(pipeline_id: str,
                                     pipeline_config_dir: str,
@@ -23,20 +30,30 @@ def _build_and_load_pipeline_config(pipeline_id: str,
 
 def update_pipeline_registry(pipeline_id:str, 
                              prompt_set:str,
+                             graph_id: str,
+                             config_file: str,
+                             llm_name: str,
+                             enabled: bool = True,
                              registry_f:str="configs/pipeline_registry.json"):
+    if not osp.isabs(registry_f):
+        registry_f = osp.join(_PROJECT_ROOT, registry_f)
+    os.makedirs(osp.dirname(registry_f), exist_ok=True)
+    if not osp.exists(registry_f):
+        with open(registry_f, "w", encoding="utf-8") as f:
+            json.dump({"routes": {}, "api_keys": {}}, f, indent=4)
+
     with open(registry_f, "r") as f:
         registry = json.load(f)
-    
-    if pipeline_id not in registry["routes"]:
-        registry["routes"][pipeline_id] = {
-            "enabled": True,
-            "config_file": None,
-            "prompt_pipeline_id": prompt_set,
-        }
-    else:
-        registry["routes"][pipeline_id]["prompt_pipeline_id"] = prompt_set
 
-    with open(registry_f, "w") as f:
+    routes: Dict[str, Dict[str, Any]] = registry.setdefault("routes", {})
+    route = routes.setdefault(pipeline_id, {})
+    route["enabled"] = bool(enabled)
+    route["config_file"] = config_file
+    route["prompt_pipeline_id"] = prompt_set
+    route["graph_id"] = graph_id
+    route["overrides"] = {"llm_name": llm_name}
+
+    with open(registry_f, "w", encoding="utf-8") as f:
         json.dump(registry, f, indent=4)