mkdir

Create directory. Auto-selects client.

SERVERClaude C2 SOURCE0xyg3n/claude-c2

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xyg3n-claude-c2/mkdir.md

WHAT IT DOES

What mkdir does on Claude C2

AI agents use mkdir to create or update resources in Claude C2, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude C2 environment.

RISK

Why mkdir is rated Medium

Creating directories is a reversible write operation that modifies file system state. While not destructive, it can be misused to create directory structures for staging malware, establishing persistence mechanisms, or disrupting application functionality. The severity is medium rather than high because the operation is easily reversible and has limited blast radius compared to destructive operations.

From the tool's definition Tool name 'mkdir' and description 'Create directory' indicate file system modification. The auto-selection of client suggests remote execution across multiple platforms.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mkdir safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Claude C2, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mkdir, this is the rule to start with:

mkdir Rate-limited

mkdir 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": {
    "mkdir": {
      "limits": [
        {
          "counter": "mkdir_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Claude C2, apply this rule, and every mkdir call is checked against it from then on.

FAQ

Questions about mkdir

What does the mkdir tool do? +

Create directory. Auto-selects client. It is categorised as a Write tool in the Claude C2 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mkdir? +

Register the Claude C2 MCP server in PolicyLayer and add a rule for mkdir: 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 Claude C2. Nothing to install.

What risk level is mkdir? +

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

Can I rate-limit mkdir? +

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

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

mkdir is provided by the Claude C2 MCP server (0xyg3n/claude-c2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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