backup_schematic | PolicyLayer

WHAT IT DOES

What backup_schematic does on KiCAD Schematic Manipulation MCP Server

AI agents use backup_schematic 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 backup_schematic needs a policy

Backup operations are write actions that create new files or data copies without modifying or deleting the original. The effect is fully reversible and has minimal blast radius if misused—a redundant backup file causes no harm. While the server contains destructive tools (implied by the context of schematic manipulation), this specific tool only creates copies.

From the tool's definition Tool description states 'Create backup of current schematic file' — this creates a copy/duplicate of data (reversible operation, no destructive intent).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

backup_schematic Rate-limited

backup_schematic 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": {
    "backup_schematic": {
      "limits": [
        {
          "counter": "backup_schematic_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 backup_schematic

What does the backup_schematic tool do? +

Create backup of current schematic file. 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 backup_schematic? +

Register the KiCAD Schematic Manipulation MCP Server MCP server in PolicyLayer and add a rule for backup_schematic: 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 backup_schematic? +

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

Can I rate-limit backup_schematic? +

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

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

backup_schematic 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.