AI agents call hosts_tags_list to retrieve information from Remnawave without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves host tags from the VPN panel without creating, modifying, or deleting any data. It is purely informational and has minimal blast radius if misused by an AI agent—at worst, it exposes tag metadata. The tool fits the Read category definition: 'retrieves or queries data; no side effects.'
From the tool's definition Tool name 'hosts_tags_list' and description 'List all host tags' indicate a query/retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access hosts_tags_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Remnawave, and nothing reaches the server without passing your rules. This is the rule we recommend for hosts_tags_list:
{
"version": "1",
"default": "deny",
"tools": {
"hosts_tags_list": {}
}
}hosts_tags_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all host tags. It is categorised as a Read tool in the Remnawave MCP Server, which means it retrieves data without modifying state.
Register the Remnawave MCP server in PolicyLayer and add a rule for hosts_tags_list: 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 Remnawave. Nothing to install.
hosts_tags_list 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 hosts_tags_list 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_tags_list. 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_tags_list is provided by the Remnawave MCP server (trackline/mcp-remnawave). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 153 Remnawave tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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153 Remnawave tools catalogued and risk-classified — across an index of 42,500+ MCP servers.