Low Risk

parseMeasResults

Parse LTspice .meas results from a run log or explicit log path.

How to control parseMeasResults ↓

What parseMeasResults does on Ltspice

AI agents call parseMeasResults to retrieve information from Ltspice without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why parseMeasResults needs a policy

The tool reads and parses measurement results from an existing log file. It retrieves data without modifying any files or triggering any external operations. This is a pure read/query operation with minimal blast radius.

From the tool's definition Parse LTspice .meas results from a run log or explicit log path

Documented attack patterns abuse exactly the kind of access parseMeasResults gives an agent:

How to control parseMeasResults

PolicyLayer is an MCP gateway — it sits between your AI agents and Ltspice, and nothing reaches the server without passing your rules. This is the rule we recommend for parseMeasResults:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "parseMeasResults": {}
  }
}

parseMeasResults is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Ltspice — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Questions about parseMeasResults

What does the parseMeasResults tool do? +

Parse LTspice .meas results from a run log or explicit log path. It is categorised as a Read tool in the Ltspice MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on parseMeasResults? +

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

What risk level is parseMeasResults? +

parseMeasResults is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit parseMeasResults? +

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

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

parseMeasResults is provided by the Ltspice MCP server (xuio/ltspice-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Ltspice tool call.

Start from Ltspice, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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71 Ltspice tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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