// SCAN REPORT

MCP File System

9 tools. 3 can modify or destroy data without limits.

3 write tools that can modify data. Rate limits recommended.

Last updated: 29 Jun 2026

3 can modify or destroy data

6 read-only

9 tools total

Community server · catalogue entry verified 29/06/2026

How to control MCP File System ↓

TOOL MAP

What MCP File System exposes to your agents

Read (6) Write / Execute (3) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous MCP File System tools

Write · Medium create_directory create_directory Write · Medium move_file move_file Write · Medium write_file write_file

3 of MCP File System's 9 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control MCP File System

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP File System, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "create_directory": {
    "limits": [
      {
        "counter": "create_directory_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "get_file_info": {
    "limits": [
      {
        "counter": "get_file_info_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register MCP File System — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON MCP FILE SYSTEM →

Instant setup, no code required.

FULL CATALOGUE

All 9 MCP File System tools

WRITE 3 tools

Write create_directory create_directory Write move_file move_file Write write_file write_file

READ 6 tools

Read get_file_info get_file_info Read list_allowed_directories list_allowed_directories Read list_directory list_directory Read read_file read_file Read read_multiple_files read_multiple_files Read search_files search_files

FAQ

Questions about MCP File System

How do I prevent bulk modifications through MCP File System? +

The MCP File System server has 3 write tools including create_directory, move_file, write_file. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach MCP File System.

How many tools does the MCP File System MCP server expose? +

9 tools across 2 categories: Read, Write. 6 are read-only. 3 can modify, create, or delete data.

How do I enforce a policy on MCP File System? +

Register the MCP File System MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every MCP File System tool call.

Deterministic rules across all 9 MCP File System tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON MCP FILE SYSTEM →

Instant setup, no code required.

9 MCP File System tools catalogued and risk-classified — across an index of 43,000+ MCP servers.