AI agents call hwid_top_users 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 and displays user data (specifically HWID device counts) for analytics or monitoring purposes. It is a read-only query operation with no ability to create, modify, delete, or execute actions. The blast radius if misused is minimal—an attacker gains visibility into which users have the most hardware IDs, which is informational but not directly damaging.
From the tool's definition Tool name 'hwid_top_users' and description 'Get users with most HWID devices' indicate a query/retrieval operation that fetches aggregated user statistics without modification or side effects.
Documented attack patterns abuse exactly the kind of access hwid_top_users 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 hwid_top_users:
{
"version": "1",
"default": "deny",
"tools": {
"hwid_top_users": {}
}
}hwid_top_users is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get users with most HWID devices. 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 hwid_top_users: 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.
hwid_top_users 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 hwid_top_users 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 hwid_top_users. 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.
hwid_top_users 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.