check_file

Check if file exists

SERVER1Panel MCP Server SOURCEeaveluo/1panel-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/eaveluo-1panel-mcp/check-file.md

WHAT IT DOES

What check_file does on 1Panel MCP Server

AI agents call check_file to retrieve information from 1Panel MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why check_file is rated Low

This tool performs a read-only operation to determine whether a file exists on the system. It retrieves information without side effects, altering data, executing code, or triggering external operations. While it runs on a server infrastructure management platform, the specific action is purely informational.

From the tool's definition Tool name 'check_file' and description 'Check if file exists' indicate a simple existence check operation with no modification, deletion, or execution.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_file safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 1Panel MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For check_file, this is the rule to start with:

check_file Allowed

check_file is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "check_file": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 1Panel MCP Server, apply this rule, and every check_file call is checked against it from then on.

FAQ

Questions about check_file

What does the check_file tool do? +

Check if file exists. It is categorised as a Read tool in the 1Panel MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_file? +

Register the 1Panel MCP Server MCP server in PolicyLayer and add a rule for check_file: 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 1Panel MCP Server. Nothing to install.

What risk level is check_file? +

check_file is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit check_file? +

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

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

check_file is provided by the 1Panel MCP Server MCP server (eaveluo/1panel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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