compress · ZIP MCP Server MCP: Risk & Policy

WHAT IT DOES

What compress does on ZIP MCP Server

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

WHY IT NEEDS A POLICY

Why compress needs a policy

This tool creates a new ZIP archive from existing files/directories. It is a Write operation as it produces a new file on disk but does not delete or overwrite source data. Misuse could fill disk space or expose sensitive files in an archive, hence medium severity.

From the tool's definition "Compress local files or directories into a ZIP file"

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

compress Rate-limited

compress 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": {
    "compress": {
      "limits": [
        {
          "counter": "compress_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 ZIP MCP Server, so you can run agents against it safely.

FAQ

Questions about compress

What does the compress tool do? +

Compress local files or directories into a ZIP file. It is categorised as a Write tool in the ZIP 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 compress? +

Register the ZIP MCP Server MCP server in PolicyLayer and add a rule for compress: 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 ZIP MCP Server. Nothing to install.

What risk level is compress? +

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

Can I rate-limit compress? +

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

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

compress is provided by the ZIP MCP Server MCP server (loscolmebrothers/zip-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.