add_board_text

Add a text label to a PCB layer (e.g. silkscreen, fab, courtyard).

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/add-board-text.md

WHAT IT DOES

What add_board_text does on KiCAD-MCP-Server

AI agents use add_board_text 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 add_board_text is rated Medium

This tool creates new text elements (silkscreen labels, fab notes, courtyard markings, etc.) on a PCB. While it modifies the design, the addition is reversible through standard undo/delete operations. It does not execute arbitrary code, delete data permanently, or cause financial transactions.

From the tool's definition Tool description states 'Add a text label to a PCB layer', indicating creation of new text objects on a PCB design. The verb 'Add' and the action of placing text labels represent reversible modifications to the PCB design.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

add_board_text Rate-limited

add_board_text 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": {
    "add_board_text": {
      "limits": [
        {
          "counter": "add_board_text_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 add_board_text call is checked against it from then on.

FAQ

Questions about add_board_text

What does the add_board_text tool do? +

Add a text label to a PCB layer (e.g. silkscreen, fab, courtyard). 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 add_board_text? +

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

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

Can I rate-limit add_board_text? +

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

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

add_board_text 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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