copy_files · LuzzyTool MCP: Risk & Policy

WHAT IT DOES

What copy_files does on LuzzyTool

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

WHY IT NEEDS A POLICY

Why copy_files needs a policy

This tool creates new copies of files in a target directory, which is a reversible write operation. It does not delete originals (unlike move), does not execute code, and does not destroy data. The severity is medium because uncontrolled batch copying could fill disk space, overwrite existing files, or expose sensitive data if copied to unintended locations.

From the tool's definition Tool name 'copy_files' and description '【批量复制】将多个源文件一次性复制到目标目录' (batch copy multiple source files to target directory at once) indicate file creation/duplication functionality.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

copy_files Rate-limited

copy_files 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": {
    "copy_files": {
      "limits": [
        {
          "counter": "copy_files_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 LuzzyTool, so you can run agents against it safely.

FAQ

Questions about copy_files

What does the copy_files tool do? +

【批量复制】将多个源文件一次性复制到目标目录。. It is categorised as a Write tool in the LuzzyTool MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on copy_files? +

Register the LuzzyTool MCP server in PolicyLayer and add a rule for copy_files: 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 LuzzyTool. Nothing to install.

What risk level is copy_files? +

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

Can I rate-limit copy_files? +

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

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

copy_files is provided by the LuzzyTool MCP server (luzzymeow/luzzytool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.