photoshop_fill_layer · Photoshop MCP Windows-First MCP

WHAT IT DOES

What photoshop_fill_layer does on Photoshop MCP Windows-First

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

WHY IT NEEDS A POLICY

Why photoshop_fill_layer needs a policy

This tool modifies image content by filling a layer with color, which is a reversible write operation. It does not execute arbitrary code, delete data irreversibly, or affect financial systems. The severity is medium because unintended color fills could obscure or corrupt important image content, but the operation can be undone (Undo in Photoshop), and the blast radius is limited to the currently open document.

From the tool's definition Tool name 'photoshop_fill_layer' and description 'Fill the active layer with a color' indicate modification of image data within Photoshop.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

photoshop_fill_layer Rate-limited

photoshop_fill_layer 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": {
    "photoshop_fill_layer": {
      "limits": [
        {
          "counter": "photoshop_fill_layer_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 Photoshop MCP Windows-First, so you can run agents against it safely.

FAQ

Questions about photoshop_fill_layer

What does the photoshop_fill_layer tool do? +

Fill the active layer with a color. It is categorised as a Write tool in the Photoshop MCP Windows-First MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on photoshop_fill_layer? +

Register the Photoshop MCP Windows-First MCP server in PolicyLayer and add a rule for photoshop_fill_layer: 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 Photoshop MCP Windows-First. Nothing to install.

What risk level is photoshop_fill_layer? +

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

Can I rate-limit photoshop_fill_layer? +

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

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

photoshop_fill_layer is provided by the Photoshop MCP Windows-First MCP server (rookietopred02-gif/photoshop-mcp-windows-first). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.