diff --git a/apps/api/src/api/config/config_profiles.py b/apps/api/src/api/config/config_profiles.py
index 7483ed5..7378ae2 100644
--- a/apps/api/src/api/config/config_profiles.py
+++ b/apps/api/src/api/config/config_profiles.py
@@ -34,7 +34,6 @@ from src.services.config.crud_service import (
     update_profile,
     validate_default_profiles,
 )
-from src.services.tool.instance_service import resolve_git_mounts
 from src.services.config.resolver_service import (
     resolve_default_profile,
     validate_git_url,
@@ -193,6 +192,10 @@ async def refresh_profile_git_mounts(
             status_code=status.HTTP_403_FORBIDDEN, detail="Not authorized"
         )
 
+    # Import lazily: instance_service imports tool schemas that transitively
+    # load API routers, so importing it during router initialization cycles.
+    from src.services.tool.instance_service import resolve_git_mounts
+
     outcomes = await _running_profile_outcomes(session, profile.id)
     for outcome in outcomes:
         instance = await session.get(ToolInstance, uuid.UUID(outcome["instance_id"]))