AI agents call list_layers to retrieve information from InDesign UXP MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation—it retrieves and enumerates layers from the current InDesign document. There is no data modification, deletion, code execution, or irreversible action. The blast radius if misused is minimal, as the worst outcome would be exposing document structure information that the agent already has access to. This is a straightforward Read category tool.
From the tool's definition Tool name 'list_layers' and description 'List all layers in the document' indicate a query operation that retrieves layer information without modification or side effects.
Documented attack patterns abuse exactly the kind of access list_layers gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and InDesign UXP MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_layers:
{
"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.
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List all layers in the document. It is categorised as a Read tool in the InDesign UXP MCP Server MCP Server, which means it retrieves data without modifying state.
Register the InDesign UXP MCP Server 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 UXP MCP Server. Nothing to install.
list_layers is a Read tool with low risk. Read-only tools are generally safe to allow by default.
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.
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.
list_layers is provided by the InDesign UXP MCP Server MCP server (theloniuser/indesign-uxp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 135 InDesign UXP MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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135 InDesign UXP MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.