add_text_box · KiCAD Schematic Manipulation MCP Server MCP

WHAT IT DOES

What add_text_box does on KiCAD Schematic Manipulation MCP Server

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

WHY IT NEEDS A POLICY

Why add_text_box needs a policy

This tool creates a new text box element in a KiCAD schematic. It modifies the schematic file by adding reversible content. While the change is persisted, it can be undone or removed without data loss. It does not execute external code, delete data, or trigger financial transactions.

From the tool's definition Tool name 'add_text_box' and description 'Add text box element to schematic' indicate a create/modify operation that writes new data to the schematic file.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_text_box Rate-limited

add_text_box 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_text_box": {
      "limits": [
        {
          "counter": "add_text_box_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches KiCAD Schematic Manipulation MCP Server, so you can run agents against it safely.

FAQ

Questions about add_text_box

What does the add_text_box tool do? +

Add text box element to schematic. It is categorised as a Write tool in the KiCAD Schematic Manipulation 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_text_box? +

Register the KiCAD Schematic Manipulation MCP Server MCP server in PolicyLayer and add a rule for add_text_box: 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 Schematic Manipulation MCP Server. Nothing to install.

What risk level is add_text_box? +

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

Can I rate-limit add_text_box? +

Yes. Add a rate_limit block to the add_text_box 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_text_box completely? +

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

add_text_box is provided by the KiCAD Schematic Manipulation MCP Server MCP server (richard-luc/kicad-schematic-manipulation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.