start_options_flow

Start the options flow for an existing config entry (edit settings).

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/start-options-flow.md

WHAT IT DOES

What start_options_flow does on Ha Nexus Agent

AI agents use start_options_flow 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 start_options_flow is rated Medium

This tool modifies the configuration/settings of an existing config entry. It creates or initiates a flow to edit settings, which is a reversible write operation. Misuse could alter smart home integrations but changes can be undone by reconfiguring.

From the tool's definition Start the options flow for an existing config entry (edit settings)

Attacks that exploit this kind of access

RECOMMENDED RULE

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

start_options_flow Rate-limited

start_options_flow 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": {
    "start_options_flow": {
      "limits": [
        {
          "counter": "start_options_flow_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 start_options_flow call is checked against it from then on.

FAQ

Questions about start_options_flow

What does the start_options_flow tool do? +

Start the options flow for an existing config entry (edit settings). 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 start_options_flow? +

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

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

Can I rate-limit start_options_flow? +

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

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

start_options_flow 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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