copy_modal_volume_files · Modal MCP Server MCP

WHAT IT DOES

What copy_modal_volume_files does on Modal MCP Server

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

WHY IT NEEDS A POLICY

Why copy_modal_volume_files needs a policy

An AI agent can call copy_modal_volume_files faster than any human can review — one bad instruction and it creates or modifies resources in Modal MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

copy_modal_volume_files Rate-limited

copy_modal_volume_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_modal_volume_files": {
      "limits": [
        {
          "counter": "copy_modal_volume_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 Modal MCP Server, so you can run agents against it safely.

FAQ

Questions about copy_modal_volume_files

What does the copy_modal_volume_files tool do? +

copy_modal_volume_files. It is categorised as a Write tool in the Modal 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 copy_modal_volume_files? +

Register the Modal MCP Server MCP server in PolicyLayer and add a rule for copy_modal_volume_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 Modal MCP Server. Nothing to install.

What risk level is copy_modal_volume_files? +

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

Can I rate-limit copy_modal_volume_files? +

Yes. Add a rate_limit block to the copy_modal_volume_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_modal_volume_files completely? +

Set action: deny in the PolicyLayer policy for copy_modal_volume_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_modal_volume_files? +

copy_modal_volume_files is provided by the Modal MCP Server MCP server (smehmood/modal-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.