replace_board_outline

Replace the current Edge.Cuts board outline with a rectangle, rounded rectangle, circle or polygon.

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/replace-board-outline.md

WHAT IT DOES

What replace_board_outline does on KiCAD-MCP-Server

AI agents use replace_board_outline 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 replace_board_outline is rated Medium

This tool modifies the board outline geometry in a KiCAD design file. While the change is reversible (undo/redo available in KiCAD), it alters a critical design parameter. The operation is Write-class because it creates/modifies data reversibly rather than irreversibly destroying it or executing arbitrary code.

From the tool's definition Tool description states it 'Replace[s] the current Edge.Cuts board outline', which modifies an existing board design artifact. The verb 'replace' indicates overwriting existing data in the KiCAD project file.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

replace_board_outline Rate-limited

replace_board_outline 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": {
    "replace_board_outline": {
      "limits": [
        {
          "counter": "replace_board_outline_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 replace_board_outline call is checked against it from then on.

FAQ

Questions about replace_board_outline

What does the replace_board_outline tool do? +

Replace the current Edge.Cuts board outline with a rectangle, rounded rectangle, circle or polygon. 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 replace_board_outline? +

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

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

Can I rate-limit replace_board_outline? +

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

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

replace_board_outline 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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