update_warning_rule · AIRIOT MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_warning_rule does on AIRIOT MCP Server

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

WHY IT NEEDS A POLICY

Why update_warning_rule needs a policy

Updating warning rules qualifies as Write because it modifies existing data (alarm rule configurations) reversibly—changes can be undone or corrected. It is not Execute because it does not run arbitrary code or trigger external operations; it updates configuration. It is not Destructive because the changes are reversible and do not permanently delete data.

From the tool's definition Tool name is 'update_warning_rule'; description translates to 'update alarm rule'. The tool modifies warning/alarm rules in an IoT platform, which are reversible configuration changes.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_warning_rule Rate-limited

update_warning_rule 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_warning_rule": {
      "limits": [
        {
          "counter": "update_warning_rule_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 AIRIOT MCP Server, so you can run agents against it safely.

FAQ

Questions about update_warning_rule

What does the update_warning_rule tool do? +

更新报警规则. It is categorised as a Write tool in the AIRIOT MCP Server 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_warning_rule? +

Register the AIRIOT MCP Server MCP server in PolicyLayer and add a rule for update_warning_rule: 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 AIRIOT MCP Server. Nothing to install.

What risk level is update_warning_rule? +

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

Can I rate-limit update_warning_rule? +

Yes. Add a rate_limit block to the update_warning_rule 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_warning_rule completely? +

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

update_warning_rule is provided by the AIRIOT MCP Server MCP server (sshwsfc/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.