temperature_convert · MCP Weather Server MCP: Risk & Policy

WHAT IT DOES

What temperature_convert does on MCP Weather Server

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

WHY IT NEEDS A POLICY

Why temperature_convert needs a policy

An AI agent can call temperature_convert faster than any human can review — one bad instruction and it creates or modifies resources in MCP Weather Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

temperature_convert Rate-limited

temperature_convert 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": {
    "temperature_convert": {
      "limits": [
        {
          "counter": "temperature_convert_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 MCP Weather Server, so you can run agents against it safely.

FAQ

Questions about temperature_convert

What does the temperature_convert tool do? +

摄氏度与华氏度互相转换。. It is categorised as a Write tool in the MCP Weather 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 temperature_convert? +

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

What risk level is temperature_convert? +

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

Can I rate-limit temperature_convert? +

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

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

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