Medium Risk

files.create_folder

Create a new directory with intermediate directories. Path must be under home directory.

How to control files.create_folder ↓

What files.create_folder does on Orchard

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

Medium Risk

Why files.create_folder needs a policy

This tool creates directories, which is a reversible write operation. It does not execute arbitrary code, delete data, or move money. While directory creation modifies the file system, it is non-destructive and can be undone by removing the created directory.

From the tool's definition Tool description states "Create a new directory" which is a write operation that modifies the file system by adding new data/structure.

Documented attack patterns abuse exactly the kind of access files.create_folder gives an agent:

How to control files.create_folder

PolicyLayer is an MCP gateway — it sits between your AI agents and Orchard, and nothing reaches the server without passing your rules. This is the rule we recommend for files.create_folder:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "files.create_folder": {
      "limits": [
        {
          "counter": "files.create_folder_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

files.create_folder 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.

  1. Create a free account and register Orchard — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

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Questions about files.create_folder

What does the files.create_folder tool do? +

Create a new directory with intermediate directories. Path must be under home directory. It is categorised as a Write tool in the Orchard MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on files.create_folder? +

Register the Orchard MCP server in PolicyLayer and add a rule for files.create_folder: 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 Orchard. Nothing to install.

What risk level is files.create_folder? +

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

Can I rate-limit files.create_folder? +

Yes. Add a rate_limit block to the files.create_folder 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 files.create_folder completely? +

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

files.create_folder is provided by the Orchard MCP server (l22-io/orchard-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Orchard tool call.

Start from Orchard, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

65 Orchard tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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