Wei Sun (Jack)
4df926388b
The `BaseTool` expects the run_async to return a json-serializable object. By model_dump the McpTool result explicitly can allow what ADK runtime sees is identical to what is persisted in the session event list. Before the change, runtime sees CallToolResult instance and Session persists its serialized dict. https://github.com/modelcontextprotocol/python-sdk/blob/main/src/mcp/types.py#L916-L922 PiperOrigin-RevId: 822465432