convert_length · UnClick MCP: Risk & Policy

WHAT IT DOES

What convert_length does on UnClick

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

PARAMETERS

Parameter	Type	Required
`to`	string	Yes
`from`	string	Yes
`value`	number	Yes

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why convert_length needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

convert_length Rate-limited

convert_length 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": {
    "convert_length": {
      "limits": [
        {
          "counter": "convert_length_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 UnClick, so you can run agents against it safely.

FAQ

Questions about convert_length

What does the convert_length tool do? +

Convert between length units. It is categorised as a Write tool in the UnClick MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does convert_length accept? +

convert_length accepts 3 parameters: to, from, value. Required: to, from, value. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on convert_length? +

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

What risk level is convert_length? +

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

Can I rate-limit convert_length? +

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

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

convert_length is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.