save_file

Save file content

SERVER1Panel MCP Server SOURCEeaveluo/1panel-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/eaveluo-1panel-mcp/save-file.md

WHAT IT DOES

What save_file does on 1Panel MCP Server

AI agents use save_file to create or update resources in 1Panel MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 1Panel MCP Server environment.

RISK

Why save_file is rated Medium

This tool modifies file content on a server. It is Write (not Destructive) because saving/overwriting files is reversible through subsequent saves, and does not permanently delete data. Severity is high because an AI agent could maliciously overwrite critical system files, application configs, or web content, causing service disruption or security compromise.

From the tool's definition Tool name 'save_file' with description 'Save file content' indicates creation or modification of file data. In the context of a server infrastructure management tool (1Panel), this enables reversible writing of file content to the filesystem.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs save_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 save_file, this is the rule to start with:

save_file Rate-limited

save_file 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": {
    "save_file": {
      "limits": [
        {
          "counter": "save_file_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 1Panel MCP Server, apply this rule, and every save_file call is checked against it from then on.

FAQ

Questions about save_file

What does the save_file tool do? +

Save file content. It is categorised as a Write tool in the 1Panel 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 save_file? +

Register the 1Panel MCP Server MCP server in PolicyLayer and add a rule for save_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 save_file? +

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

Can I rate-limit save_file? +

Yes. Add a rate_limit block to the save_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 save_file completely? +

Set action: deny in the PolicyLayer policy for save_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 save_file? +

save_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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