Compute settling time to a target within tolerance_percent band.
AI agents call getSettlingTime 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.
This tool queries and analyzes simulation results to extract a specific metric (settling time). It performs a calculation on existing data with no side effects, reversible operations, code execution, or destructive actions. The operation is purely analytical and characteristic of a Read category tool.
From the tool's definition Tool name 'getSettlingTime' and description 'Compute settling time to a target within tolerance_percent band' indicate data extraction and analysis of simulation results.
Documented attack patterns abuse exactly the kind of access getSettlingTime gives an agent:
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 getSettlingTime:
{
"version": "1",
"default": "deny",
"tools": {
"getSettlingTime": {}
}
}getSettlingTime is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Compute settling time to a target within tolerance_percent band. It is categorised as a Read tool in the Ltspice MCP Server, which means it retrieves data without modifying state.
Register the Ltspice MCP server in PolicyLayer and add a rule for getSettlingTime: 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.
getSettlingTime is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the getSettlingTime 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.
Set action: deny in the PolicyLayer policy for getSettlingTime. 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.
getSettlingTime 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.
Start from Ltspice, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
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