photoshop_set_layer_opacity

WHAT IT DOES

What photoshop_set_layer_opacity does on Photoshop MCP Windows-First

AI agents use photoshop_set_layer_opacity 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_set_layer_opacity needs a policy

This tool modifies image data by adjusting a layer's opacity value, which is a Write operation. It does not execute arbitrary code or shell commands (ruling out Execute), does not permanently delete data (ruling out Destructive), and does not involve financial transactions (ruling out Financial). The modification is reversible and easily undone.

From the tool's definition Tool description states it 'Set the opacity of the active layer' — this modifies layer properties in an image non-destructively and reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

photoshop_set_layer_opacity Rate-limited

photoshop_set_layer_opacity 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_set_layer_opacity": {
      "limits": [
        {
          "counter": "photoshop_set_layer_opacity_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_set_layer_opacity

What does the photoshop_set_layer_opacity tool do? +

Set the opacity of the active layer. 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_set_layer_opacity? +

Register the Photoshop MCP Windows-First MCP server in PolicyLayer and add a rule for photoshop_set_layer_opacity: 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_set_layer_opacity? +

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

Can I rate-limit photoshop_set_layer_opacity? +

Yes. Add a rate_limit block to the photoshop_set_layer_opacity 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_set_layer_opacity completely? +

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

photoshop_set_layer_opacity 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.