Get list of hosts with active failures in an inventory.
AI agents call get_failed_hosts 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 retrieves information about failed hosts from an inventory—a read-only query operation. It has no capability to modify, delete, execute commands, or trigger financial actions. The blast radius of misuse is minimal; an agent accessing this data could at worst gain visibility into infrastructure status but cannot take destructive or harmful actions with it alone.
From the tool's definition Tool name 'get_failed_hosts' and description 'Get list of hosts with active failures in an inventory' indicate a retrieval operation that queries state without modification or side effects.
Documented attack patterns abuse exactly the kind of access get_failed_hosts 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_failed_hosts:
{
"version": "1",
"default": "deny",
"tools": {
"get_failed_hosts": {}
}
}get_failed_hosts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get list of hosts with active failures in an inventory. 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_failed_hosts: 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_failed_hosts 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_failed_hosts 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_failed_hosts. 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_failed_hosts 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.
Free to start. No card required.
69 AAP Enterprise MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.