update_mode_temperatures · Zont MCP: Risk & Policy

WHAT IT DOES

What update_mode_temperatures does on Zont

AI agents use update_mode_temperatures 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 update_mode_temperatures needs a policy

This tool modifies heating system configuration by updating temperature parameters. While not irreversible (temperatures can be changed again), it directly controls physical HVAC behavior and could cause discomfort, energy waste, or system stress if misapplied. Classified as Write (not Execute) because it updates a configuration parameter rather than triggering arbitrary code.

From the tool's definition Tool name 'update_mode_temperatures' combined with ZONT heating system context indicates modification of temperature setpoints. Sibling tools include read-only operations (get_*) and diagnostics, establishing that this tool performs state modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_mode_temperatures Rate-limited

update_mode_temperatures 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": {
    "update_mode_temperatures": {
      "limits": [
        {
          "counter": "update_mode_temperatures_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

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 update_mode_temperatures

What does the update_mode_temperatures tool do? +

update_mode_temperatures. 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 update_mode_temperatures? +

Register the Zont MCP server in PolicyLayer and add a rule for update_mode_temperatures: 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 update_mode_temperatures? +

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

Can I rate-limit update_mode_temperatures? +

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

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

update_mode_temperatures 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.