export_pcb_svg
Plot the PCB layout to SVG via kicad-cli, exposing the full layer-plot option set (layer + common-layer lists, mirror, soldermask subtraction, negative, black-and-white, theme, DNP fab-layer modes, page-size mode, fit-page-to-board, exclude-drawing-sheet, drill shape, single/multi output modes). ...
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What export_pcb_svg does on KiCAD-MCP-Server
AI agents call export_pcb_svg 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.
Why export_pcb_svg is rated Low
This tool reads an existing PCB file and exports/renders it to SVG format. It does not modify any data, execute arbitrary code, or perform destructive actions. It is purely a read/export operation that generates a visual representation of the PCB layout.
From the tool's definition Plot the PCB layout to SVG via kicad-cli... Reads the last SAVED state of the .kicad_pcb.
Attacks that exploit this kind of access
The rule that runs export_pcb_svg 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 export_pcb_svg, this is the rule to start with:
export_pcb_svg is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect KiCAD-MCP-Server, apply this rule, and every export_pcb_svg call is checked against it from then on.
Questions about export_pcb_svg
Plot the PCB layout to SVG via kicad-cli, exposing the full layer-plot option set (layer + common-layer lists, mirror, soldermask subtraction, negative, black-and-white, theme, DNP fab-layer modes, page-size mode, fit-page-to-board, exclude-drawing-sheet, drill shape, single/multi output modes). Rich CLI sibling of export_svg. Reads the last SAVED state of the .kicad_pcb. It is categorised as a Read tool in the KiCAD-MCP-Server MCP Server, which means it retrieves data without modifying state.
Register the KiCAD-MCP-Server MCP server in PolicyLayer and add a rule for export_pcb_svg: 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.
export_pcb_svg 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 export_pcb_svg 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 export_pcb_svg. 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.
export_pcb_svg 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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