list_subscribers

List newsletter subscribers.

SERVERWebcake Storefront SOURCEwebcake-storefront-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/webcake-storefront/list-subscribers.md

WHAT IT DOES

What list_subscribers does on Webcake Storefront

AI agents call list_subscribers to retrieve information from Webcake Storefront without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_subscribers is rated Low

This tool queries and returns a list of newsletter subscribers. The action is purely informational—it retrieves existing data without creating, modifying, deleting, or executing any operations. While subscriber lists may contain personal information (email addresses), the tool itself performs no destructive or executable action.

From the tool's definition Tool name 'list_subscribers' and description 'List newsletter subscribers' indicate data retrieval with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_subscribers safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Webcake Storefront, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_subscribers, this is the rule to start with:

list_subscribers Allowed

list_subscribers is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Webcake Storefront, apply this rule, and every list_subscribers call is checked against it from then on.

FAQ

Questions about list_subscribers

What does the list_subscribers tool do? +

List newsletter subscribers. It is categorised as a Read tool in the Webcake Storefront MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_subscribers? +

Register the Webcake Storefront MCP server in PolicyLayer and add a rule for list_subscribers: 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 Webcake Storefront. Nothing to install.

What risk level is list_subscribers? +

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

Can I rate-limit list_subscribers? +

Yes. Add a rate_limit block to the list_subscribers 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_subscribers completely? +

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

list_subscribers is provided by the Webcake Storefront MCP server (webcake-storefront-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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