assign_entity_to_area

What assign_entity_to_area does on Ha Nexus Agent

AI agents use assign_entity_to_area to create or update resources in Ha Nexus Agent, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ha Nexus Agent environment.

Why assign_entity_to_area is rated Medium

This tool creates or modifies entity metadata (assigning an entity to an area) in Home Assistant. The change is reversible—the assignment can be changed or removed later. It does not delete data, execute external code, move money, or perform irreversible operations. However, in a smart home context, reassigning entities could affect automation triggers or UI organization, creating moderate blast radius if misused.

From the tool's definition Tool description: 'Assign an entity to an area.' This modifies metadata/configuration of a smart home entity by assigning it to an organizational area, which is a reversible configuration change.

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

{
  "version": "1",
  "default": "deny",
  "tools": {
    "assign_entity_to_area": {
      "limits": [
        {
          "counter": "assign_entity_to_area_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about assign_entity_to_area