get_system_info

Get Home Assistant system/version info.

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-system-info.md

WHAT IT DOES

What get_system_info does on Ha Nexus Agent

AI agents call get_system_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_system_info is rated Low

This tool purely retrieves metadata about the Home Assistant system and version. It has no side effects, does not modify state, and does not execute commands or access sensitive user data beyond what a typical system information query would return. The blast radius of misuse is minimal, as an AI agent obtaining version/system info poses no immediate security or operational risk.

From the tool's definition The tool description states 'Get Home Assistant system/version info' — a retrieval operation with no modification, deletion, or execution of external commands.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_system_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_system_info, this is the rule to start with:

get_system_info Allowed

get_system_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_system_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_system_info call is checked against it from then on.

FAQ

Questions about get_system_info

What does the get_system_info tool do? +

Get Home Assistant system/version info. 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_system_info? +

Register the Ha Nexus Agent MCP server in PolicyLayer and add a rule for get_system_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_system_info? +

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

Can I rate-limit get_system_info? +

Yes. Add a rate_limit block to the get_system_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_system_info completely? +

Set action: deny in the PolicyLayer policy for get_system_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_system_info? +

get_system_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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