update_category

What update_category does on Ha Nexus Agent

AI agents use update_category 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 update_category is rated Medium

This tool modifies Home Assistant's category registry configuration. It is a Write operation because it updates/modifies data without permanently destroying it—categories can be revised or reconfigured. Severity is medium because misconfiguration of categories could disrupt smart home organization and potentially affect automation rule targeting, but it does not delete data irreversibly or execute arbitrary commands.

From the tool's definition Tool name 'update_category' and description 'Update a category via WS `config/category_registry/update`' indicate modification of configuration data. The use of 'update' is a classic Write operation that modifies existing data reversibly.

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

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

Questions about update_category