trigger_automation

Manually trigger an automation.

SERVERHa Nexus Agent SOURCEfistacho/ha-nexus-agent

High RISK CLASS

Category Execute

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/trigger-automation.md

WHAT IT DOES

What trigger_automation does on Ha Nexus Agent

AI agents invoke trigger_automation to trigger actions in Ha Nexus Agent. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why trigger_automation is rated High

This tool executes external operations (Home Assistant automations) whose side effects are determined by automation configuration and cannot be predicted from the tool alone.

From the tool's definition Tool name 'trigger_automation' and description 'Manually trigger an automation' indicate the tool executes a pre-defined automation workflow whose effects depend on what that automation is configured to do (e.g., turn on lights, lock doors, activate scenes,…

Attacks that exploit this kind of access

RECOMMENDED RULE

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

trigger_automation Rate-limited

trigger_automation stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "trigger_automation": {
      "limits": [
        {
          "counter": "trigger_automation_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 trigger_automation call is checked against it from then on.

FAQ

Questions about trigger_automation

What does the trigger_automation tool do? +

Manually trigger an automation. It is categorised as a Execute tool in the Ha Nexus Agent MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on trigger_automation? +

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

trigger_automation is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit trigger_automation? +

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

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

trigger_automation 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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