set_addon_options

Set configuration options for an add-on (sent as {"options": options}).

SERVERHa Nexus Agent SOURCEfistacho/ha-nexus-agent

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/fistacho-ha-nexus-agent/set-addon-options.md

WHAT IT DOES

What set_addon_options does on Ha Nexus Agent

AI agents use set_addon_options 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.

RISK

Why set_addon_options is rated Medium

This tool modifies add-on configuration settings. While reversible (not destructive), it could have significant side effects depending on what options are changed—restarting services, altering security policies, or changing network bindings. The high severity reflects that misconfiguration could disrupt home automation services.

From the tool's definition Set configuration options for an add-on (sent as {"options": options}). The verb 'set' combined with 'configuration options' indicates modification of add-on settings, which is a reversible write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

set_addon_options Rate-limited

set_addon_options stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

LIMIT 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 set_addon_options call is checked against it from then on.

FAQ

Questions about set_addon_options

What does the set_addon_options tool do? +

Set configuration options for an add-on (sent as {"options": options}). It is categorised as a Write tool in the Ha Nexus Agent MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_addon_options? +

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

set_addon_options is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_addon_options? +

Yes. Add a rate_limit block to the set_addon_options 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 set_addon_options completely? +

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

set_addon_options 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.

KEEP EXPLORING

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