list_footprint_libraries

List available .pretty footprint libraries and their contents (first 20 footprints per library).

SERVERKiCAD-MCP-Server SOURCEmixelpixx/kicad-mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mixelpixx-kicad-mcp-server/list-footprint-libraries.md

WHAT IT DOES

What list_footprint_libraries does on KiCAD-MCP-Server

AI agents call list_footprint_libraries to retrieve information from KiCAD-MCP-Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_footprint_libraries is rated Low

This tool performs a read-only operation to enumerate and display footprint libraries and their contents. There are no side effects, no data modification, and no irreversible actions. It is purely informational retrieval, consistent with the Read category definition.

From the tool's definition The tool description explicitly states it 'List[s] available .pretty footprint libraries and their contents' — a query operation that retrieves information without modifying or deleting data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_footprint_libraries safely

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

list_footprint_libraries Allowed

list_footprint_libraries is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_footprint_libraries": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect KiCAD-MCP-Server, apply this rule, and every list_footprint_libraries call is checked against it from then on.

FAQ

Questions about list_footprint_libraries

What does the list_footprint_libraries tool do? +

List available .pretty footprint libraries and their contents (first 20 footprints per library). It is categorised as a Read tool in the KiCAD-MCP-Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_footprint_libraries? +

Register the KiCAD-MCP-Server MCP server in PolicyLayer and add a rule for list_footprint_libraries: 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 KiCAD-MCP-Server. Nothing to install.

What risk level is list_footprint_libraries? +

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

Can I rate-limit list_footprint_libraries? +

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

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

list_footprint_libraries is provided by the KiCAD-MCP-Server MCP server (mixelpixx/kicad-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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