set_heating_mode_all · Zont MCP: Risk & Policy

WHAT IT DOES

What set_heating_mode_all does on Zont

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

WHY IT NEEDS A POLICY

Why set_heating_mode_all needs a policy

The name suggests writing/updating heating mode configuration for all devices simultaneously. This is a Write operation with high severity because misconfiguration could affect heating across an entire system (e.g., turning off heat in winter). Confidence is reduced due to empty description.

From the tool's definition Tool name 'set_heating_mode_all' implies setting heating mode across all devices; description is empty and uninformative.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_heating_mode_all Rate-limited

set_heating_mode_all 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_heating_mode_all": {
      "limits": [
        {
          "counter": "set_heating_mode_all_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Zont, so you can run agents against it safely.

FAQ

Questions about set_heating_mode_all

What does the set_heating_mode_all tool do? +

set_heating_mode_all. It is categorised as a Write tool in the Zont 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_heating_mode_all? +

Register the Zont MCP server in PolicyLayer and add a rule for set_heating_mode_all: 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 Zont. Nothing to install.

What risk level is set_heating_mode_all? +

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

Can I rate-limit set_heating_mode_all? +

Yes. Add a rate_limit block to the set_heating_mode_all 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_heating_mode_all completely? +

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

set_heating_mode_all is provided by the Zont MCP server (mab2908/zont-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.