image_create_placeholder · TSCodex MCP Images MCP

WHAT IT DOES

What image_create_placeholder does on TSCodex MCP Images

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

WHY IT NEEDS A POLICY

Why image_create_placeholder needs a policy

This tool creates (generates) new image files, which is a Write operation. The severity is low because placeholder images are non-critical assets typically used during design workflows, and any mistakes can be easily corrected by regenerating or deleting the placeholder. There are no irreversible effects, financial implications, or code execution risks.

From the tool's definition Tool creates a placeholder image with dimensions displayed in center. It generates new image content that is reversible and has no destructive effects on existing data.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

image_create_placeholder Rate-limited

image_create_placeholder 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_create_placeholder": {
      "limits": [
        {
          "counter": "image_create_placeholder_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 TSCodex MCP Images, so you can run agents against it safely.

FAQ

Questions about image_create_placeholder

What does the image_create_placeholder tool do? +

Create placeholder image with dimensions displayed in center (useful for designers). All paths are relative to the project root. It is categorised as a Write tool in the TSCodex MCP Images 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_create_placeholder? +

Register the TSCodex MCP Images MCP server in PolicyLayer and add a rule for image_create_placeholder: 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 TSCodex MCP Images. Nothing to install.

What risk level is image_create_placeholder? +

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

Can I rate-limit image_create_placeholder? +

Yes. Add a rate_limit block to the image_create_placeholder 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_create_placeholder completely? +

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

image_create_placeholder is provided by the TSCodex MCP Images MCP server (unbywyd/tscodex-mcp-images). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.