flip_image · Graphics MCP: Risk & Policy

WHAT IT DOES

What flip_image does on Graphics

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

WHY IT NEEDS A POLICY

Why flip_image needs a policy

Image flipping modifies pixel data but is reversible (applying flip twice restores original). This is transformation without deletion, matching Write category. Severity is medium because misuse could modify many images if given directory access, but the operation itself is non-destructive and localized to image content.

From the tool's definition Tool name 'flip_image' indicates image transformation/modification. Description is empty, limiting precise classification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

flip_image Rate-limited

flip_image 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": {
    "flip_image": {
      "limits": [
        {
          "counter": "flip_image_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 Graphics, so you can run agents against it safely.

FAQ

Questions about flip_image

What does the flip_image tool do? +

flip_image. It is categorised as a Write tool in the Graphics MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on flip_image? +

Register the Graphics MCP server in PolicyLayer and add a rule for flip_image: 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 Graphics. Nothing to install.

What risk level is flip_image? +

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

Can I rate-limit flip_image? +

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

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

flip_image is provided by the Graphics MCP server (lesleslie/graphics-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.