get_area_entities

Get all entities belonging to an area.

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-area-entities.md

WHAT IT DOES

What get_area_entities does on Ha Nexus Agent

AI agents call get_area_entities 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_area_entities is rated Low

This tool queries and returns a list of entities associated with a specific area in Home Assistant. It is a straightforward read operation that retrieves information without altering system state, triggering actions, or affecting smart home devices. No side effects or irreversible changes are possible.

From the tool's definition Tool name 'get_area_entities' and description 'Get all entities belonging to an area' indicate data retrieval with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_area_entities 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_area_entities, this is the rule to start with:

get_area_entities Allowed

get_area_entities 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_area_entities": {}
  }
}

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_area_entities call is checked against it from then on.

FAQ

Questions about get_area_entities

What does the get_area_entities tool do? +

Get all entities belonging to an area. 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_area_entities? +

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

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

Can I rate-limit get_area_entities? +

Yes. Add a rate_limit block to the get_area_entities 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_area_entities completely? +

Set action: deny in the PolicyLayer policy for get_area_entities. 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_area_entities? +

get_area_entities 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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