generate_netlist

ServerKiCAD-MCP-Server
CategoryRead

WHAT IT DOES

What generate_netlist does on KiCAD-MCP-Server

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

THE RISK

Low Risk

Why generate_netlist needs a policy

The tool only reads and returns schematic data as structured JSON. It explicitly states it does not write any file and is intended for inspection/verification purposes only.

From the tool's definition 'Return a structured JSON netlist from the schematic', 'Does not write any file', 'Use this to inspect or verify connectivity'

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

POLICY

How to control generate_netlist

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

policy.json

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

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

Create a free account and register KiCAD-MCP-Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More KiCAD-MCP-Server tools

Destructive delete_component Remove a component from the PCB by its reference designator. Destructive delete_schematic_component Remove a placed symbol from a KiCAD schematic (.kicad_sch). This removes the symbol insta Destructive delete_schematic_net_label Remove a net label from the schematic. Destructive delete_schematic_wire Remove a wire from the schematic by start and end coordinates. Destructive delete_symbol Remove a symbol from a .kicad_sym library file. Destructive delete_trace Delete traces from the PCB. Can delete by UUID, position, or bulk-delete all traces on a n Destructive remove_schematic_component_property Remove a single custom property from a placed schematic symbol. Built-in fields (Referenc Execute autoroute Run Freerouting autorouter on the current PCB. Exports to Specctra DSN, runs Freerouting C

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about generate_netlist

What does the generate_netlist tool do? +

Return a structured JSON netlist from the schematic — component list (reference, value, footprint) and net list (net name with all connected component/pin pairs). Use this to inspect or verify connectivity within the conversation. Does not write any file. To export a netlist file in Spice, KiCad XML, Cadstar, or OrcadPCB2 format, use export_netlist instead. 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 generate_netlist? +

Register the KiCAD-MCP-Server MCP server in PolicyLayer and add a rule for generate_netlist: 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 generate_netlist? +

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

Can I rate-limit generate_netlist? +

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

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

generate_netlist 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.

Enforce policy on every KiCAD-MCP-Server tool call.

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

CHECK YOUR STACK →

Free to start. No card required.

157 KiCAD-MCP-Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.