image_process · MCP Workspace Server MCP: Risk & Policy

WHAT IT DOES

What image_process does on MCP Workspace Server

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

WHY IT NEEDS A POLICY

Why image_process needs a policy

The tool modifies image files (resize, crop, rotate, convert formats), which constitutes reversible data modification. While 'get info' is a read operation, the primary function is transforming/writing image data. Converting formats or overwriting image files in the workspace could overwrite originals, but is generally considered reversible if originals are preserved.

From the tool's definition Process images - resize, crop, rotate, convert formats, get info

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

image_process Rate-limited

image_process 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": {
    "image_process": {
      "limits": [
        {
          "counter": "image_process_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 Workspace Server, so you can run agents against it safely.

FAQ

Questions about image_process

What does the image_process tool do? +

Process images - resize, crop, rotate, convert formats, get info. It is categorised as a Write tool in the MCP Workspace 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 image_process? +

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

What risk level is image_process? +

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

Can I rate-limit image_process? +

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

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

image_process is provided by the MCP Workspace Server MCP server (shayyeffet/ultimate_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.