Merge fbf4083d5c into 19bf36a716

api/core/agent/fc_agent_runner.py

@@ -236,6 +236,9 @@ class FunctionCallAgentRunner(BaseAgentRunner):
                         "meta": ToolInvokeMeta.error_instance(f"there is not a tool named {tool_call_name}").to_dict(),
                     }
                 else:
+                    inputs_to_pass = (
+                        kwargs.get("inputs") if tool_instance.tool_provider_type() == ToolProviderType.MCP else None
+                    )
                     # invoke tool
                     tool_invoke_response, message_files, tool_invoke_meta = ToolEngine.agent_invoke(
                         tool=tool_instance,
@@ -249,6 +252,7 @@ class FunctionCallAgentRunner(BaseAgentRunner):
                         app_id=self.application_generate_entity.app_config.app_id,
                         message_id=self.message.id,
                         conversation_id=self.conversation.id,
+                        inputs=inputs_to_pass,
                     )
                     # publish files
                     for message_file_id in message_files:

api/core/mcp/auth_client.py

@@ -180,7 +180,9 @@ class MCPClientWithAuthRetry(MCPClient):
         """
         return self._execute_with_retry(super().list_tools)
 
-    def invoke_tool(self, tool_name: str, tool_args: dict[str, Any]) -> CallToolResult:
+    def invoke_tool(
+        self, tool_name: str, tool_args: dict[str, Any], _meta: dict[str, Any] | None = None
+    ) -> CallToolResult:
         """
         Invoke a tool on the MCP server with auth retry.
 
@@ -194,4 +196,4 @@ class MCPClientWithAuthRetry(MCPClient):
         Raises:
             MCPAuthError: If authentication fails after retries
         """
-        return self._execute_with_retry(super().invoke_tool, tool_name, tool_args)
+        return self._execute_with_retry(super().invoke_tool, tool_name, tool_args, _meta)

api/core/mcp/mcp_client.py

@@ -96,11 +96,13 @@ class MCPClient:
         response = self._session.list_tools()
         return response.tools
 
-    def invoke_tool(self, tool_name: str, tool_args: dict[str, Any]) -> CallToolResult:
+    def invoke_tool(
+        self, tool_name: str, tool_args: dict[str, Any], _meta: dict[str, Any] | None = None
+    ) -> CallToolResult:
         """Call a tool"""
         if not self._session:
             raise ValueError("Session not initialized.")
-        return self._session.call_tool(tool_name, tool_args)
+        return self._session.call_tool(tool_name, tool_args, _meta=_meta)
 
     def cleanup(self):
         """Clean up resources"""

api/core/mcp/session/client_session.py

@@ -248,6 +248,7 @@ class ClientSession(
         self,
         name: str,
         arguments: dict[str, Any] | None = None,
+        _meta: dict[str, Any] | None = None,
         read_timeout_seconds: timedelta | None = None,
     ) -> types.CallToolResult:
         """Send a tools/call request."""
@@ -256,7 +257,7 @@ class ClientSession(
             types.ClientRequest(
                 types.CallToolRequest(
                     method="tools/call",
-                    params=types.CallToolRequestParams(name=name, arguments=arguments),
+                    params=types.CallToolRequestParams(name=name, arguments=arguments, _meta=_meta),
                 )
             ),
             types.CallToolResult,

api/core/mcp/types.py

@@ -849,6 +849,7 @@ class CallToolRequestParams(RequestParams):
 
     name: str
     arguments: dict[str, Any] | None = None
+    _meta: dict[str, Any] | None = None
     model_config = ConfigDict(extra="allow")
 
 

api/core/tools/__base/tool.py

@@ -51,6 +51,7 @@ class Tool(ABC):
         conversation_id: str | None = None,
         app_id: str | None = None,
         message_id: str | None = None,
+        inputs: dict[str, Any] | None = None,
     ) -> Generator[ToolInvokeMessage]:
         if self.runtime and self.runtime.runtime_parameters:
             tool_parameters.update(self.runtime.runtime_parameters)
@@ -58,13 +59,24 @@ class Tool(ABC):
         # try parse tool parameters into the correct type
         tool_parameters = self._transform_tool_parameters_type(tool_parameters)
 
-        result = self._invoke(
-            user_id=user_id,
-            tool_parameters=tool_parameters,
-            conversation_id=conversation_id,
-            app_id=app_id,
-            message_id=message_id,
-        )
+        # Construct the call parameter and pass in inputs only when the _invoke of the subclass accepts inputs
+        invoke_kwargs = {
+            "user_id": user_id,
+            "tool_parameters": tool_parameters,
+            "conversation_id": conversation_id,
+            "app_id": app_id,
+            "message_id": message_id,
+        }
+        if inputs is not None:
+            try:
+                sig = inspect.signature(self._invoke)
+                if "inputs" in sig.parameters:
+                    invoke_kwargs["inputs"] = inputs
+            except (ValueError, TypeError):
+                # fallback: Do not pass inputs if reflection fails
+                pass
+
+        result = self._invoke(**invoke_kwargs)
 
         if isinstance(result, ToolInvokeMessage):
 

api/core/tools/mcp_tool/tool.py

@@ -59,9 +59,10 @@ class MCPTool(Tool):
         conversation_id: str | None = None,
         app_id: str | None = None,
         message_id: str | None = None,
+        inputs: dict[str, Any] | None = None,
     ) -> Generator[ToolInvokeMessage, None, None]:
-        result = self.invoke_remote_mcp_tool(tool_parameters)
-
+        result = self.invoke_remote_mcp_tool(tool_parameters, _meta=inputs)
+        
         # Extract usage metadata from MCP protocol's _meta field
         self._latest_usage = self._derive_usage_from_result(result)
 
@@ -242,7 +243,7 @@ class MCPTool(Tool):
             if value is not None and not (isinstance(value, str) and value.strip() == "")
         }
 
-    def invoke_remote_mcp_tool(self, tool_parameters: dict[str, Any]) -> CallToolResult:
+    def invoke_remote_mcp_tool(self, tool_parameters: dict[str, Any], _meta: dict[str, Any] | None) -> CallToolResult:
         headers = self.headers.copy() if self.headers else {}
         tool_parameters = self._handle_none_parameter(tool_parameters)
 
@@ -277,7 +278,9 @@ class MCPTool(Tool):
                 sse_read_timeout=self.sse_read_timeout,
                 provider_entity=provider_entity,
             ) as mcp_client:
-                return mcp_client.invoke_tool(tool_name=self.entity.identity.name, tool_args=tool_parameters)
+                return mcp_client.invoke_tool(
+                    tool_name=self.entity.identity.name, tool_args=tool_parameters, _meta=_meta
+                )
         except MCPConnectionError as e:
             raise ToolInvokeError(f"Failed to connect to MCP server: {e}") from e
         except Exception as e:

api/core/tools/tool_engine.py

@@ -57,6 +57,7 @@ class ToolEngine:
         conversation_id: str | None = None,
         app_id: str | None = None,
         message_id: str | None = None,
+        inputs: dict[str, Any] | None = None,
     ) -> tuple[str, list[str], ToolInvokeMeta]:
         """
         Agent invokes the tool with the given arguments.
@@ -81,7 +82,7 @@ class ToolEngine:
             # hit the callback handler
             agent_tool_callback.on_tool_start(tool_name=tool.entity.identity.name, tool_inputs=tool_parameters)
 
-            messages = ToolEngine._invoke(tool, tool_parameters, user_id, conversation_id, app_id, message_id)
+            messages = ToolEngine._invoke(tool, tool_parameters, user_id, conversation_id, app_id, message_id, inputs)
             invocation_meta_dict: dict[str, ToolInvokeMeta] = {}
 
             def message_callback(
@@ -206,6 +207,7 @@ class ToolEngine:
         conversation_id: str | None = None,
         app_id: str | None = None,
         message_id: str | None = None,
+        inputs: dict[str, Any] | None = None,
     ) -> Generator[ToolInvokeMessage | ToolInvokeMeta, None, None]:
         """
         Invoke the tool with the given arguments.
@@ -223,7 +225,7 @@ class ToolEngine:
             },
         )
         try:
-            yield from tool.invoke(user_id, tool_parameters, conversation_id, app_id, message_id)
+            yield from tool.invoke(user_id, tool_parameters, conversation_id, app_id, message_id, inputs)
         except Exception as e:
             meta.error = str(e)
             raise ToolEngineInvokeError(meta)