create_archive · Mcp 7zip MCP: Risk & Policy

WHAT IT DOES

What create_archive does on Mcp 7zip

AI agents use create_archive to create or update resources in Mcp 7zip — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp 7zip environment.

WHY IT NEEDS A POLICY

Why create_archive needs a policy

This tool creates new archive files, which is a reversible write operation. While archive creation can consume disk space and is resource-intensive, it does not delete data, execute arbitrary code, or cause financial transactions. The 'Write' category applies because the operation creates new data structures (compressed archives) that can be modified or deleted later.

From the tool's definition Tool description states '创建压缩文件' (create archive) - this creates/generates new archive files in various formats (7z, zip, tar, gz, bz2, xz). The name 'create_archive' and description confirm data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_archive Rate-limited

create_archive 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": {
    "create_archive": {
      "limits": [
        {
          "counter": "create_archive_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 Mcp 7zip, so you can run agents against it safely.

FAQ

Questions about create_archive

What does the create_archive tool do? +

创建压缩文件（支持 7z, zip, tar, gz, bz2, xz 格式）. It is categorised as a Write tool in the Mcp 7zip MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_archive? +

Register the Mcp 7zip MCP server in PolicyLayer and add a rule for create_archive: 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 Mcp 7zip. Nothing to install.

What risk level is create_archive? +

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

Can I rate-limit create_archive? +

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

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

create_archive is provided by the Mcp 7zip MCP server (qiuerjun/mcp-7zip-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.