ftp_batch_upload · Ftp MCP: Risk & Policy

WHAT IT DOES

What ftp_batch_upload does on Ftp

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

WHY IT NEEDS A POLICY

Why ftp_batch_upload needs a policy

This tool creates or modifies files on remote servers by uploading local files. It is reversible (files can be deleted or overwritten later), so it falls under Write rather than Destructive.

From the tool's definition Tool name 'ftp_batch_upload' and description 'Upload a collection of local files to remote destinations' explicitly indicates creation/modification of data on remote systems via FTP/SFTP.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ftp_batch_upload Rate-limited

ftp_batch_upload 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": {
    "ftp_batch_upload": {
      "limits": [
        {
          "counter": "ftp_batch_upload_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ftp, so you can run agents against it safely.

FAQ

Questions about ftp_batch_upload

What does the ftp_batch_upload tool do? +

Upload a collection of local files to remote destinations in a single operation. HIGHLY RECOMMENDED for multiple files to minimize connection handshaking overhead and drastically improve performance. It is categorised as a Write tool in the Ftp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ftp_batch_upload? +

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

What risk level is ftp_batch_upload? +

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

Can I rate-limit ftp_batch_upload? +

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

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

ftp_batch_upload is provided by the Ftp MCP server (kynlos/ftp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

ftp_batch_upload is one line of Ftp's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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