Low Risk

list_layers

List all layers in the document

How to control list_layers ↓

What list_layers does on Indesign

AI agents call list_layers to retrieve information from Indesign without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why list_layers needs a policy

This tool retrieves information about layers in an InDesign document without any side effects. It performs a read-only query operation, matching the Read category definition of retrieving or querying data with no side effects. The severity is low because misuse would only expose existing document structure information, not cause data loss or workflow damage.

From the tool's definition Tool name is 'list_layers' and description states 'List all layers in the document' — a pure query operation with no modification, creation, or deletion of data.

Documented attack patterns abuse exactly the kind of access list_layers gives an agent:

How to control list_layers

PolicyLayer is an MCP gateway — it sits between your AI agents and Indesign, and nothing reaches the server without passing your rules. This is the rule we recommend for list_layers:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_layers": {}
  }
}

list_layers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Indesign — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about list_layers

What does the list_layers tool do? +

List all layers in the document. It is categorised as a Read tool in the Indesign MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_layers? +

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

What risk level is list_layers? +

list_layers is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_layers? +

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

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

list_layers is provided by the Indesign MCP server (lucdesign/indesign-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Indesign tool call.

Start from Indesign, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

36 Indesign tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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