update_folder · Prompteka MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_folder does on Prompteka MCP Server

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

WHY IT NEEDS A POLICY

Why update_folder needs a policy

The tool creates or modifies folder metadata reversibly within the Prompteka prompt library. It does not delete data (that would be Destructive via delete_folder) nor execute arbitrary code. Severity is medium because misuse could corrupt the folder organization structure, but changes are typically reversible through subsequent updates or app recovery mechanisms.

From the tool's definition Tool description states 'Update an existing folder', which modifies existing data. The server manages a SQLite database of prompts and folders on macOS.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_folder Rate-limited

update_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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_folder": {
      "limits": [
        {
          "counter": "update_folder_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 Prompteka MCP Server, so you can run agents against it safely.

FAQ

Questions about update_folder

What does the update_folder tool do? +

Update an existing folder. It is categorised as a Write tool in the Prompteka 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 update_folder? +

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

What risk level is update_folder? +

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

Can I rate-limit update_folder? +

Yes. Add a rate_limit block to the update_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 update_folder completely? +

Set action: deny in the PolicyLayer policy for update_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 update_folder? +

update_folder is provided by the Prompteka MCP Server MCP server (webdevguyrg/prompteka-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.