add_schematic_text

Add a free-form text annotation to the schematic.

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-schematic-text.md

WHAT IT DOES

What add_schematic_text does on KiCAD-MCP-Server

AI agents use add_schematic_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_schematic_text is rated Medium

This tool creates new text annotations in a KiCAD schematic, which is a reversible modification. It does not execute code, delete data, or affect financial systems. The scope is limited to adding aesthetic or informational text elements. Severity is low because annotations are non-structural and easily removable without affecting circuit functionality.

From the tool's definition Tool name 'add_schematic_text' and description 'Add a free-form text annotation to the schematic' indicate creation of new text content that modifies the schematic document.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

add_schematic_text Rate-limited

add_schematic_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_schematic_text": {
      "limits": [
        {
          "counter": "add_schematic_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_schematic_text call is checked against it from then on.

FAQ

Questions about add_schematic_text

What does the add_schematic_text tool do? +

Add a free-form text annotation to the schematic. 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_schematic_text? +

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

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

Can I rate-limit add_schematic_text? +

Yes. Add a rate_limit block to the add_schematic_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_schematic_text completely? +

Set action: deny in the PolicyLayer policy for add_schematic_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_schematic_text? +

add_schematic_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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