set_wavelength

Set the correction wavelength (nm) the meter uses to convert sensor signal to power. Must be

SERVERPypi:labmcp Alicat SOURCEpypi:labmcp-alicat

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/lab-instrument-mcps/set-wavelength.md

WHAT IT DOES

What set_wavelength does on Pypi:labmcp Alicat

AI agents use set_wavelength to create or update resources in Pypi:labmcp Alicat, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pypi:labmcp Alicat environment.

RISK

Why set_wavelength is rated Medium

Modifies instrument calibration parameters reversibly; misuse could skew measurement accuracy but is not destructive or executable.

From the tool's definition Set the correction wavelength (nm) the meter uses to convert

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_wavelength safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Pypi:labmcp Alicat, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_wavelength, this is the rule to start with:

set_wavelength Rate-limited

set_wavelength 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": {
    "set_wavelength": {
      "limits": [
        {
          "counter": "set_wavelength_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Pypi:labmcp Alicat, apply this rule, and every set_wavelength call is checked against it from then on.

FAQ

Questions about set_wavelength

What does the set_wavelength tool do? +

Set the correction wavelength (nm) the meter uses to convert sensor signal to power. Must be. It is categorised as a Write tool in the Pypi:labmcp Alicat MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_wavelength? +

Register the Pypi:labmcp Alicat MCP server in PolicyLayer and add a rule for set_wavelength: 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 Pypi:labmcp Alicat. Nothing to install.

What risk level is set_wavelength? +

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

Can I rate-limit set_wavelength? +

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

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

set_wavelength is provided by the Pypi:labmcp Alicat MCP server (pypi:labmcp-alicat). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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