list_color_swatches

THE RISK

Low Risk

Why list_color_swatches needs a policy

This tool performs a retrieval operation on existing design assets (color swatches). It has no side effects, cannot alter document state, and poses minimal risk even if invoked by an AI agent. The action is purely informational and read-only.

From the tool's definition Tool name 'list_color_swatches' and description 'List all color swatches' indicate a query operation that retrieves color swatch data without modifying or deleting anything.

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

POLICY

How to control list_color_swatches

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_color_swatches": {}
  }
}

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

Create a free account and register InDesign MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_color_swatches

What does the list_color_swatches tool do? +

List all color swatches. It is categorised as a Read tool in the InDesign MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_color_swatches? +

Register the InDesign MCP Server MCP server in PolicyLayer and add a rule for list_color_swatches: 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 MCP Server. Nothing to install.

What risk level is list_color_swatches? +

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

Can I rate-limit list_color_swatches? +

Yes. Add a rate_limit block to the list_color_swatches 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_color_swatches completely? +

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

list_color_swatches is provided by the InDesign MCP Server MCP server (zachshallbetter/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 MCP Server tool call.

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

CHECK YOUR STACK →