export_symbol

Extract a single symbol from a .kicad_sym library into a standalone .kicad_sym file.

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

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mixelpixx-kicad-mcp-server/export-symbol.md

WHAT IT DOES

What export_symbol does on KiCAD-MCP-Server

AI agents use export_symbol to create or update resources in KiCAD-MCP-Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your KiCAD-MCP-Server environment.

RISK

Why export_symbol is rated Medium

The tool creates a new file (write operation) by extracting existing symbol data from a library. This is reversible — the extracted file can be deleted or overwritten. There are no destructive effects (no deletion from source library indicated), no code execution, and no financial impact.

From the tool's definition Tool description states it 'Extract[s] a single symbol from a .kicad_sym library into a standalone .kicad_sym file' — this is a data extraction and file creation operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs export_symbol 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_symbol, this is the rule to start with:

export_symbol Rate-limited

export_symbol stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "export_symbol": {
      "limits": [
        {
          "counter": "export_symbol_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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 export_symbol call is checked against it from then on.

FAQ

Questions about export_symbol

What does the export_symbol tool do? +

Extract a single symbol from a .kicad_sym library into a standalone .kicad_sym file. It is categorised as a Write tool in the KiCAD-MCP-Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on export_symbol? +

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

export_symbol is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit export_symbol? +

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

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

export_symbol 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.

KEEP EXPLORING

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