Get pin map and metadata for a symbol in LTspice's lib.zip.
AI agents call getLtspiceSymbolInfo 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 retrieves read-only information (pin maps and metadata) from LTspice's symbol library. It performs a lookup operation with no side effects, no code execution, and no data modification. The lowest risk category applies.
From the tool's definition Tool name 'getLtspiceSymbolInfo' and description 'Get pin map and metadata for a symbol' indicate retrieval/querying of static symbol library data with no modification or execution.
Documented attack patterns abuse exactly the kind of access getLtspiceSymbolInfo 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 getLtspiceSymbolInfo:
{
"version": "1",
"default": "deny",
"tools": {
"getLtspiceSymbolInfo": {}
}
}getLtspiceSymbolInfo is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get pin map and metadata for a symbol in LTspice's lib.zip. 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 getLtspiceSymbolInfo: 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.
getLtspiceSymbolInfo 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 getLtspiceSymbolInfo 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 getLtspiceSymbolInfo. 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.
getLtspiceSymbolInfo 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.
71 Ltspice tools catalogued and risk-classified — across an index of 43,000+ MCP servers.