AI agents call get_host_groups to retrieve information from AAP Enterprise MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about group membership for a given host. It performs a read-only operation that returns existing data without creating, modifying, deleting, or executing any operations. The verb 'get' and the absence of any action words (create, delete, execute, modify) confirm this is a simple data retrieval function with minimal blast radius if misused.
From the tool's definition Tool name 'get_host_groups' and description 'Get all groups that a host belongs to' indicate a data retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access get_host_groups gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and AAP Enterprise MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_host_groups:
{
"version": "1",
"default": "deny",
"tools": {
"get_host_groups": {}
}
}get_host_groups is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get all groups that a host belongs to. It is categorised as a Read tool in the AAP Enterprise MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AAP Enterprise MCP Server MCP server in PolicyLayer and add a rule for get_host_groups: 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 AAP Enterprise MCP Server. Nothing to install.
get_host_groups 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 get_host_groups 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 get_host_groups. 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.
get_host_groups is provided by the AAP Enterprise MCP Server MCP server (sibilleb/aap-enterprise-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 69 AAP Enterprise MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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69 AAP Enterprise MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.