file_organizer_set_custom_rules

THE RISK

Medium Risk

Why file_organizer_set_custom_rules needs a policy

The tool writes/modifies custom categorization rules that persist in the session state. This is a Write operation because it creates or updates configuration data. Severity is medium because misconfigured rules could cause files to be organized incorrectly, affecting file system organization, but the effects are reversible (rules can be changed or rules can be reset in subsequent sessions).

From the tool's definition Tool description states 'Customize how files are categorized. Rules persist for the current session.' This indicates the tool creates or modifies categorization rules that are stored and persist, which is a reversible data modification operation.

Documented attack patterns abuse exactly the kind of access file_organizer_set_custom_rules gives an agent:

POLICY

How to control file_organizer_set_custom_rules

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "file_organizer_set_custom_rules": {
      "limits": [
        {
          "counter": "file_organizer_set_custom_rules_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

file_organizer_set_custom_rules 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.

Create a free account and register File Organizer MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More File Organizer MCP tools

Destructive file_organizer_delete_duplicates Permanently deletes specified duplicate files. DESTRUCTIVE. Verifies hash/size before dele Execute file_organizer_watch_directory Add a directory to the watch list with a cron-based schedule for automatic organization. Write file_organizer_unwatch_directory Remove a directory from the watch list. Write file_organizer_organize_by_content Organize document files into topic-based folders using content analysis. Supports PDF, DOC Write file_organizer_organize_files Automatically organize files into categorized folders. Enable use_content_analysis to dete Write file_organizer_organize_music Organize music files into structured folders based on metadata (Artist/Album). Supports MP Write file_organizer_organize_photos Organize photos into date-based folders using EXIF metadata. Supports JPG, PNG, TIFF, HEIC Write file_organizer_organize_smart Automatically organizes mixed files (music, photos, documents) using the appropriate strat

All 26 File Organizer MCP tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about file_organizer_set_custom_rules

What does the file_organizer_set_custom_rules tool do? +

Customize how files are categorized. Rules persist for the current session. It is categorised as a Write tool in the File Organizer MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on file_organizer_set_custom_rules? +

Register the File Organizer MCP server in PolicyLayer and add a rule for file_organizer_set_custom_rules: 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 File Organizer MCP. Nothing to install.

What risk level is file_organizer_set_custom_rules? +

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

Can I rate-limit file_organizer_set_custom_rules? +

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

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

file_organizer_set_custom_rules is provided by the File Organizer MCP server (kridaydave/file-organizer-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every File Organizer MCP tool call.

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

CHECK YOUR STACK →