diff --git a/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py b/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
index c57dc8fee..32a4e2e45 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
@@ -347,7 +347,7 @@ def get_gns3_server_host() -> str:
         host = get_gns3_server_host()
         print(f"GNS3 server host: {host}")
     """
-    url = _detect_url_for_api()
+    url = _detect_url_for_api() or DEFAULT_GNS3_URL
 
     # Extract host from URL
     # URL format: protocol://host:port
diff --git a/gns3server/agent/gns3_copilot/gns3_client/project_inventory.py b/gns3server/agent/gns3_copilot/gns3_client/project_inventory.py
index b1f958767..aeefd304a 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/project_inventory.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/project_inventory.py
@@ -49,7 +49,7 @@ def build_nodes_inventory(nodes: list[dict[str, Any]], server_host: str | None)
     """
     inventory: dict[str, Any] = {}
     for n in nodes:
-        inventory[n.get("name")] = {
+        inventory[n.get("name") or ""] = {
             "server": server_host,
             "name": n.get("name"),
             "node_id": n.get("node_id"),
@@ -68,7 +68,7 @@ def build_nodes_inventory(nodes: list[dict[str, Any]], server_host: str | None)
     return inventory
 
 
-def build_links_summary(nodes: list[dict[str, Any]], links: list[dict[str, Any]]) -> list[dict[str, str]]:
+def build_links_summary(nodes: list[dict[str, Any]], links: list[dict[str, Any]]) -> list[dict[str, Any]]:
     """
     Build a human/LLM-friendly link list resolving node and port names.
 
@@ -76,7 +76,7 @@ def build_links_summary(nodes: list[dict[str, Any]], links: list[dict[str, Any]]
     Links whose endpoints cannot be resolved are skipped, mirroring the
     original Project.links_summary behavior.
     """
-    summary: list[dict[str, str]] = []
+    summary: list[dict[str, Any]] = []
     for link in links:
         if not link.get("nodes"):
             continue
diff --git a/pyproject.toml b/pyproject.toml
index ee3fb2bbb..594f8d726 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -297,8 +297,6 @@ module = [
   "gns3server.agent",  # 2
   "gns3server.agent.gns3_copilot.chat_sessions_repository",  # 8
   "gns3server.agent.gns3_copilot.gns3_client.api_handlers",  # 10
-  "gns3server.agent.gns3_copilot.gns3_client.connector_factory",  # 1
-  "gns3server.agent.gns3_copilot.gns3_client.project_inventory",  # 2
   "gns3server.agent.gns3_copilot.skills.loader",  # 1
   "gns3server.agent.gns3_copilot.skills.manager",  # 4
   "gns3server.agent.gns3_copilot.tools_v2.config_tools_nornir",  # 6