backup_and_edit · Edit- MCP: Risk & Policy

WHAT IT DOES

What backup_and_edit does on Edit-MCP

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

WHY IT NEEDS A POLICY

Why backup_and_edit needs a policy

This tool creates backup copies of files, which is a reversible Write operation. It does not permanently delete data (not Destructive), execute arbitrary code (not Execute), or move money (not Financial). While backups are protective in intent, they create new files and modify the filesystem, placing them squarely in the Write category.

From the tool's definition Tool description states 'Create backups of files before editing them', indicating file creation/modification operations. The term 'backup' implies copying/duplicating file data into new locations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

backup_and_edit Rate-limited

backup_and_edit 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_and_edit": {
      "limits": [
        {
          "counter": "backup_and_edit_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 Edit-MCP, so you can run agents against it safely.

FAQ

Questions about backup_and_edit

What does the backup_and_edit tool do? +

Create backups of files before editing them. It is categorised as a Write tool in the Edit-MCP 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_and_edit? +

Register the Edit- MCP server in PolicyLayer and add a rule for backup_and_edit: 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 Edit-MCP. Nothing to install.

What risk level is backup_and_edit? +

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

Can I rate-limit backup_and_edit? +

Yes. Add a rate_limit block to the backup_and_edit 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_and_edit completely? +

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

backup_and_edit is provided by the Edit- MCP server (mixelpixx/microsoft-edit-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.