create_folder_tool

A write tool on the Obsidian MCP server.

SERVERObsidian MCP Server SOURCEadrienthebo/obsidian-mcp

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/adrienthebo-obsidian-mcp/create-folder-tool.md

WHAT IT DOES

What create_folder_tool does on Obsidian MCP Server

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

RISK

Why create_folder_tool is rated Medium

Creating folders is a reversible write operation that modifies the vault's directory structure. It does not delete data (not Destructive), does not execute code (not Execute), and has no financial impact. Severity is medium because an AI agent could create excessive nested folders or disrupt vault organization, but the effect is recoverable.

From the tool's definition Tool name 'create_folder_tool' indicates creation of filesystem directories within the Obsidian vault. Server description states it enables 'creating, and managing notes' with 'direct filesystem access.' The context of sibling tools (create_note_tool,…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_folder_tool safely

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

create_folder_tool Rate-limited

create_folder_tool 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": {
    "create_folder_tool": {
      "limits": [
        {
          "counter": "create_folder_tool_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 Obsidian MCP Server, apply this rule, and every create_folder_tool call is checked against it from then on.

FAQ

Questions about create_folder_tool

What does the create_folder_tool tool do? +

create_folder_tool is a write tool on the Obsidian MCP Server MCP server. It is categorised as a Write tool in the Obsidian 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 create_folder_tool? +

Register the Obsidian MCP Server MCP server in PolicyLayer and add a rule for create_folder_tool: 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 Obsidian MCP Server. Nothing to install.

What risk level is create_folder_tool? +

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

Can I rate-limit create_folder_tool? +

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

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

create_folder_tool is provided by the Obsidian MCP Server MCP server (adrienthebo/obsidian-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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