AI agents call hosts_remove to permanently remove resources in Zebbern Kali MCP — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The 'remove' action in the name indicates an irreversible deletion or removal operation. In the context of a penetration testing toolkit, 'hosts_remove' would modify or delete host file entries or host configurations—changes that cannot be easily undone. This fits the Destructive category (irreversible data deletion/overwrite).
From the tool's definition Tool name 'hosts_remove' indicates removal/deletion of host entries. Combined with server description of 'Kali Linux penetration testing toolkit' and sibling tools focused on Active Directory attack techniques (asreproast, kerberoast, psexec, secretsdump, etc.
Documented attack patterns abuse exactly the kind of access hosts_remove gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Zebbern Kali MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for hosts_remove:
{
"version": "1",
"default": "deny",
"hide": [
"hosts_remove"
]
}hosts_remove disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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hosts_remove. It is categorised as a Destructive tool in the Zebbern Kali MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Zebbern Kali MCP server in PolicyLayer and add a rule for hosts_remove: 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 Zebbern Kali MCP. Nothing to install.
hosts_remove is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the hosts_remove 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 hosts_remove. 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.
hosts_remove is provided by the Zebbern Kali MCP server (zebbern/zebbern-kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 128 Zebbern Kali MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
128 Zebbern Kali MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.