get_system_health

Get Home Assistant system health status.

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-health.md

WHAT IT DOES

What get_system_health does on Ha Nexus Agent

AI agents call get_system_health 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_health is rated Low

This tool performs data retrieval only—it fetches the current health status of the Home Assistant system. There are no side effects, no modifications to configuration or data, no code execution, and no destructive or financial operations. It is a straightforward read/query operation with minimal risk if misused by an AI agent (the worst outcome is obtaining unnecessary status information).

From the tool's definition Tool name 'get_system_health' and description 'Get Home Assistant system health status' indicate a read-only query operation that retrieves diagnostic/status information without modifying any state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_system_health 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_health, this is the rule to start with:

get_system_health Allowed

get_system_health 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_health": {}
  }
}

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_health call is checked against it from then on.

FAQ

Questions about get_system_health

What does the get_system_health tool do? +

Get Home Assistant system health status. 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_health? +

Register the Ha Nexus Agent MCP server in PolicyLayer and add a rule for get_system_health: 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_health? +

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

Can I rate-limit get_system_health? +

Yes. Add a rate_limit block to the get_system_health 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_health completely? +

Set action: deny in the PolicyLayer policy for get_system_health. 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_health? +

get_system_health 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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