Fix the issue with the tool being uncallable. (#606)

modelscope_agent/agent.py

@@ -193,11 +193,28 @@ def _register_tool(self,
         Returns:
 
         """
-        tool_name = tool
+        tool_name = None
         tool_cfg = {}
+
+        # # Check if the tool is a dictionary and extract the tool name and configuration from it.
         if isinstance(tool, dict):
-            tool_name = next(iter(tool))
-            tool_cfg = tool[tool_name]
+            try:
+                tool_name = next(iter(tool))
+                tool_cfg = tool[tool_name]
+            except StopIteration:
+                # If the tool is an empty dictionary, proceed to register the next tool.
+                print("Empty tool dictionary provided, skipping the registration of the current tool")
+                return
+
+        # If the tool is a string, assign it directly to tool_name.
+        elif isinstance(tool, str):
+            tool_name = tool
+
+        # If the tool_name is empty, skip the registration of the current tool.
+        if not tool_name:
+            print("No tool name provided, skipping the registration of the current tool")
+            return
+
         if tool_name not in TOOL_REGISTRY and not self.use_tool_api:
             raise NotImplementedError
         if tool_name not in self.function_list:

modelscope_agent/tools/base.py

@@ -335,6 +335,10 @@ def __init__(self,
         self.tenant_id = tenant_id
         self._register_tool()
 
+        if not self.tool_name:
+            print("Skipping tool registration and status check because 'tool_name' is not defined or empty.")
+            return  # When tool_name is an empty string, skip registration and status check.
+
         max_retry = 10
         while max_retry > 0:
             status = self._check_tool_status()
@@ -368,6 +372,11 @@ def parse_service_response(response):
 
     def _register_tool(self):
         try:
+            # Check if `tool_name` is defined and not empty.
+            if not self.tool_name:
+                print("Skipping tool registration because 'tool_name' is not defined or empty.")
+                return  # Return directly, skipping registration.
+
             service_token = os.getenv('TOOL_MANAGER_AUTH', '')
             headers = {
                 'Content-Type': 'application/json',

modelscope_agent/tools/utils/openapi_utils.py

@@ -189,13 +189,14 @@ def swagger_to_openapi(swagger_data):
 
 def openapi_schema_convert(schema: dict, auth: dict = {}):
     config_data = {}
-    host = schema.get('host', '')
+    host = schema.get('host', '') if schema else ''  # Check if schema is None
+
     if host:
-        schema = swagger_to_openapi(schema)
+        schema = swagger_to_openapi(schema) if schema else {}  # Call only if schema is not None
 
-    schema = jsonref.replace_refs(schema)
+    schema = jsonref.replace_refs(schema) if schema else {}  # Call only if schema is not None
 
-    servers = schema.get('servers', [])
+    servers = schema.get('servers', []) if schema else []  # Check if schema is None
 
     if servers:
         servers_url = servers[0].get('url')