reload_board

Reload the current or specified .kicad_pcb from disk, discarding stale in-memory board state.

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/reload-board.md

WHAT IT DOES

What reload_board does on KiCAD-MCP-Server

AI agents use reload_board 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 reload_board is rated Medium

Reload operations modify the current working state by replacing it with data from disk. While not creating or deleting permanent data (making it less severe than Destructive), it does alter the editor's in-memory state and could cause loss of unsaved work. This is Write-category because it modifies the active working context reversibly—users can undo or re-save their previous state if needed.

From the tool's definition Tool performs a reload operation that discards in-memory state and reloads from disk, effectively overwriting the current working board state with a persisted version.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

reload_board Rate-limited

reload_board 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": {
    "reload_board": {
      "limits": [
        {
          "counter": "reload_board_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 reload_board call is checked against it from then on.

FAQ

Questions about reload_board

What does the reload_board tool do? +

Reload the current or specified .kicad_pcb from disk, discarding stale in-memory board state. 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 reload_board? +

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

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

Can I rate-limit reload_board? +

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

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

reload_board 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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