get_host_info

Get info about the host OS (HAOS version, hostname, kernel, etc.).

SERVERHa Nexus Agent SOURCEfistacho/ha-nexus-agent

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/fistacho-ha-nexus-agent/get-host-info.md

WHAT IT DOES

What get_host_info does on Ha Nexus Agent

AI agents call get_host_info to retrieve information from Ha Nexus Agent without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_host_info is rated Low

This tool queries and retrieves information about the host operating system without modifying, executing commands, or deleting data. It is purely informational—returning metadata like OS version, hostname, and kernel details. While host information could theoretically inform reconnaissance in an attack, the tool itself performs no destructive, financial, or execution-based action.

From the tool's definition Tool name 'get_host_info' and description 'Get info about the host OS (HAOS version, hostname, kernel, etc.)' indicate read-only retrieval of system metadata with no state changes or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_host_info safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ha Nexus Agent, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_host_info, this is the rule to start with:

get_host_info Allowed

get_host_info is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_host_info": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ha Nexus Agent, apply this rule, and every get_host_info call is checked against it from then on.

FAQ

Questions about get_host_info

What does the get_host_info tool do? +

Get info about the host OS (HAOS version, hostname, kernel, etc.). It is categorised as a Read tool in the Ha Nexus Agent MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_host_info? +

Register the Ha Nexus Agent MCP server in PolicyLayer and add a rule for get_host_info: 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 Ha Nexus Agent. Nothing to install.

What risk level is get_host_info? +

get_host_info is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_host_info? +

Yes. Add a rate_limit block to the get_host_info 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.

How do I block get_host_info completely? +

Set action: deny in the PolicyLayer policy for get_host_info. 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.

What MCP server provides get_host_info? +

get_host_info is provided by the Ha Nexus Agent MCP server (fistacho/ha-nexus-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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