diff --git a/config/base_config.yaml b/config/base_config.yaml
index 5699b399..1d6c71af 100644
--- a/config/base_config.yaml
+++ b/config/base_config.yaml
@@ -9,7 +9,7 @@ construction:
   - annoy_eng
   - demo
   max_workers: 32
-  mode: agent
+  mode: agent  # set noagent to speed up
   overlap: 200
   tree_comm:
     embedding_model: all-MiniLM-L6-v2
@@ -316,5 +316,5 @@ retrieval:
   top_k_filter: 20
 triggers:
   constructor_trigger: true
-  mode: agent
+  mode: agent  # set noagent to speed up
   retrieve_trigger: true
diff --git a/config/config_loader.py b/config/config_loader.py
index e8891aca..02252c9b 100644
--- a/config/config_loader.py
+++ b/config/config_loader.py
@@ -230,7 +230,7 @@ def _validate_config(self) -> None:
         if self.triggers.mode not in valid_modes:
             raise ValueError(f"Invalid mode: {self.triggers.mode}. Must be one of {valid_modes}")
         
-        if self.construction.mode not in ["agent", "basic"]:
+        if self.construction.mode not in valid_modes:
             raise ValueError(f"Invalid construction mode: {self.construction.mode}")
         
         # Validate numerical parameters