zemax_set_wavelengths · Zemax MCP: Risk & Policy

WHAT IT DOES

What zemax_set_wavelengths does on Zemax

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

WHY IT NEEDS A POLICY

Why zemax_set_wavelengths needs a policy

The tool modifies design parameters (wavelengths) reversibly; this is a configuration change, not a destructive deletion. An AI agent misusing this could alter optical simulations causing incorrect design iterations, but the change can be undone by setting wavelengths again.

From the tool's definition Tool description states 'Replace the wavelength set with the given values' — a modification operation that updates optical design parameters in Zemax OpticStudio.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

zemax_set_wavelengths Rate-limited

zemax_set_wavelengths 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": {
    "zemax_set_wavelengths": {
      "limits": [
        {
          "counter": "zemax_set_wavelengths_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about zemax_set_wavelengths

What does the zemax_set_wavelengths tool do? +

Replace the wavelength set with the given values (in micrometers). It is categorised as a Write tool in the Zemax MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on zemax_set_wavelengths? +

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

What risk level is zemax_set_wavelengths? +

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

Can I rate-limit zemax_set_wavelengths? +

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

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

zemax_set_wavelengths is provided by the Zemax MCP server (webworn/zemax-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

zemax_set_wavelengths is one line of Zemax's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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