{"ok": true, "component": "mcp-mailbox", "transport_hint": "streamable_http_or_json_rpc", "endpoints": {"health": "/health", "tools": "/tools", "mcp_rpc": "/"}, "read_only": true, "research_only": true, "paper_only": true, "write_tools_enabled": false, "protocol_version": "2024-11-05"}