List all available styles in the document
AI agents call list_styles 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.
This tool performs a straightforward data retrieval operation. It queries and returns style metadata from the document without any side effects, modifications, or triggering external operations. This is a classic Read category tool—similar to list, get, or fetch operations. Severity is low because misuse would only expose existing document metadata, posing minimal risk to the document state or external systems.
From the tool's definition Tool name 'list_styles' and description 'List all available styles in the document' indicate a query operation that retrieves and displays existing style information without modifying or executing any actions.
Documented attack patterns abuse exactly the kind of access list_styles gives an agent:
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_styles:
{
"version": "1",
"default": "deny",
"tools": {
"list_styles": {}
}
}list_styles 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 available styles in the document. It is categorised as a Read tool in the Indesign MCP Server, which means it retrieves data without modifying state.
Register the Indesign MCP server in PolicyLayer and add a rule for list_styles: 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.
list_styles 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_styles 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_styles. 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_styles 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.
Start from Indesign, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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36 Indesign tools catalogued and risk-classified — across an index of 43,000+ MCP servers.