discard_or_reload

Discard the current in-memory PCB state and reload the board from disk.

SERVERKiCAD-MCP-Server SOURCEmixelpixx/kicad-mcp-server

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mixelpixx-kicad-mcp-server/discard-or-reload.md

WHAT IT DOES

What discard_or_reload does on KiCAD-MCP-Server

AI agents call discard_or_reload to permanently remove resources in KiCAD-MCP-Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why discard_or_reload is rated Critical

This tool destroys in-memory state without saving. Any unsaved modifications to the PCB design are permanently lost, making it a destructive action. While the disk file itself is not modified, the loss of current work represents an irreversible deletion of user changes.

From the tool's definition Discard the current in-memory PCB state and reload the board from disk — the tool irreversibly discards unsaved work in memory.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

discard_or_reload Hidden

discard_or_reload is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "discard_or_reload"
  ]
}

RESTRICT 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 discard_or_reload call is checked against it from then on.

FAQ

Questions about discard_or_reload

What does the discard_or_reload tool do? +

Discard the current in-memory PCB state and reload the board from disk. It is categorised as a Destructive tool in the KiCAD-MCP-Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on discard_or_reload? +

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

discard_or_reload is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit discard_or_reload? +

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

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

discard_or_reload 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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