group_components

Group multiple PCB components together by name for easier selection and manipulation.

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/group-components.md

WHAT IT DOES

What group_components does on KiCAD-MCP-Server

AI agents use group_components 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 group_components is rated Medium

This tool creates or modifies PCB design metadata by establishing component groups. This is a write operation as it changes the state of the design file in a reversible manner (groups can be ungrouped). It does not delete data (not Destructive), execute code (not Execute), move money (not Financial), or trigger external operations beyond PCB editing (not Execute).

From the tool's definition Tool description states it will 'Group multiple PCB components together', which modifies the organizational structure of PCB design data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs group_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 group_components, this is the rule to start with:

group_components Rate-limited

group_components 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": {
    "group_components": {
      "limits": [
        {
          "counter": "group_components_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 group_components call is checked against it from then on.

FAQ

Questions about group_components

What does the group_components tool do? +

Group multiple PCB components together by name for easier selection and manipulation. 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 group_components? +

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

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

Can I rate-limit group_components? +

Yes. Add a rate_limit block to the group_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 group_components completely? +

Set action: deny in the PolicyLayer policy for group_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 group_components? +

group_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.

KEEP EXPLORING

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Guides

Govern customer-ops agents →Argument validation →Scoped token →