DescribeDeviceGroupDomainTree
[device] 展开设备组树，私有化调用path为：/capi/AccessManagement/DescribeDeviceGroupDomainTree 前置：DescribeDeviceChildGroups 拿 DeviceGroupId。
This record as markdown: /tools/ioacloud-ioacloud-mcp/describedevicegroupdomaintree.md
What DescribeDeviceGroupDomainTree does on Ioacloud
AI agents call DescribeDeviceGroupDomainTree to retrieve information from Ioacloud without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
OsType | number | Yes | 系统 |
DeviceGroupId | number | Yes | 设备分组Id |
ParentDomainId | number | Yes | 父域Id |
CurrentDomainId | number | — | 当前域Id |
Parameters from the server's own tool schema.
Why DescribeDeviceGroupDomainTree is rated Low
Even though DescribeDeviceGroupDomainTree only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs DescribeDeviceGroupDomainTree safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ioacloud, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For DescribeDeviceGroupDomainTree, this is the rule to start with:
DescribeDeviceGroupDomainTree is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Ioacloud, apply this rule, and every DescribeDeviceGroupDomainTree call is checked against it from then on.
Questions about DescribeDeviceGroupDomainTree
[device] 展开设备组树，私有化调用path为：/capi/AccessManagement/DescribeDeviceGroupDomainTree 前置：DescribeDeviceChildGroups 拿 DeviceGroupId。. It is categorised as a Read tool in the Ioacloud MCP Server, which means it retrieves data without modifying state.
DescribeDeviceGroupDomainTree accepts 4 parameters: OsType, DeviceGroupId, ParentDomainId, CurrentDomainId. Required: OsType, DeviceGroupId, ParentDomainId. The full parameter table on this page comes from the server's own tool schema.
Register the Ioacloud MCP server in PolicyLayer and add a rule for DescribeDeviceGroupDomainTree: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ioacloud. Nothing to install.
DescribeDeviceGroupDomainTree is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the DescribeDeviceGroupDomainTree rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for DescribeDeviceGroupDomainTree. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
DescribeDeviceGroupDomainTree is provided by the Ioacloud MCP server (@ioacloud/ioacloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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