list_schematic_components

List all components in a schematic with their references, values, positions, and pins. Essential for inspecting what

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-schematic-components.md

WHAT IT DOES

What list_schematic_components does on KiCAD-MCP-Server

AI agents call list_schematic_components 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_schematic_components is rated Low

This tool performs a query/list operation that retrieves component information from a schematic without creating, modifying, deleting, or executing any operations. It is a pure read operation with no blast radius if misused by an AI agent—the worst outcome would be information disclosure of the schematic contents.

From the tool's definition Tool name 'list_schematic_components' and description 'List all components in a schematic with their references, values, positions, and pins.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_schematic_components 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_schematic_components, this is the rule to start with:

list_schematic_components Allowed

list_schematic_components 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_schematic_components": {}
  }
}

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_schematic_components call is checked against it from then on.

FAQ

Questions about list_schematic_components

What does the list_schematic_components tool do? +

List all components in a schematic with their references, values, positions, and pins. Essential for inspecting what. 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_schematic_components? +

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

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

Can I rate-limit list_schematic_components? +

Yes. Add a rate_limit block to the list_schematic_components 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_schematic_components completely? +

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

list_schematic_components 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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